Articles | Volume 18, issue 12
Atmos. Chem. Phys., 18, 8549–8570, 2018
https://doi.org/10.5194/acp-18-8549-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Atmos. Chem. Phys., 18, 8549–8570, 2018
https://doi.org/10.5194/acp-18-8549-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article 18 Jun 2018
Research article | 18 Jun 2018
Reactive bromine in the low troposphere of Antarctica: estimations at two research sites
Cristina Prados-Roman et al.
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Gaia Pinardi, Michel Van Roozendael, François Hendrick, Andreas Richter, Pieter Valks, Ramina Alwarda, Kristof Bognar, Udo Frieß, José Granville, Myojeong Gu, Paul Johnston, Cristina Prados-Roman, Richard Querel, Kimberly Strong, Thomas Wagner, Folkard Wittrock, and Margarita Yela Gonzalez
Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2021-356, https://doi.org/10.5194/amt-2021-356, 2021
Preprint under review for AMT
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We report on the GOME-2A and GOME-2B OClO datasets (2007 to 2016, from the EUMETSAT’s AC SAF) validation using data from 9 NDACC Zenith-Scattered-Light DOAS (ZSL-DOAS) instruments distributed in both the Arctic and Antarctic. Specific sensitivity tests are performed on the ground-based data to estimate the impact of the different OClO DOAS analysis settings and their typical errors. Good agreement is found, both for the inter-annual variability and the overall OClO seasonal behaviour.
Tijl Verhoelst, Steven Compernolle, Gaia Pinardi, Jean-Christopher Lambert, Henk J. Eskes, Kai-Uwe Eichmann, Ann Mari Fjæraa, José Granville, Sander Niemeijer, Alexander Cede, Martin Tiefengraber, François Hendrick, Andrea Pazmiño, Alkiviadis Bais, Ariane Bazureau, K. Folkert Boersma, Kristof Bognar, Angelika Dehn, Sebastian Donner, Aleksandr Elokhov, Manuel Gebetsberger, Florence Goutail, Michel Grutter de la Mora, Aleksandr Gruzdev, Myrto Gratsea, Georg H. Hansen, Hitoshi Irie, Nis Jepsen, Yugo Kanaya, Dimitris Karagkiozidis, Rigel Kivi, Karin Kreher, Pieternel F. Levelt, Cheng Liu, Moritz Müller, Monica Navarro Comas, Ankie J. M. Piters, Jean-Pierre Pommereau, Thierry Portafaix, Cristina Prados-Roman, Olga Puentedura, Richard Querel, Julia Remmers, Andreas Richter, John Rimmer, Claudia Rivera Cárdenas, Lidia Saavedra de Miguel, Valery P. Sinyakov, Wolfgang Stremme, Kimberly Strong, Michel Van Roozendael, J. Pepijn Veefkind, Thomas Wagner, Folkard Wittrock, Margarita Yela González, and Claus Zehner
Atmos. Meas. Tech., 14, 481–510, https://doi.org/10.5194/amt-14-481-2021, https://doi.org/10.5194/amt-14-481-2021, 2021
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This paper reports on the ground-based validation of the NO2 data produced operationally by the TROPOMI instrument on board the Sentinel-5 Precursor satellite. Tropospheric, stratospheric, and total NO2 columns are compared to measurements collected from MAX-DOAS, ZSL-DOAS, and PGN/Pandora instruments respectively. The products are found to satisfy mission requirements in general, though negative mean differences are found at sites with high pollution levels. Potential causes are discussed.
Karin Kreher, Michel Van Roozendael, Francois Hendrick, Arnoud Apituley, Ermioni Dimitropoulou, Udo Frieß, Andreas Richter, Thomas Wagner, Johannes Lampel, Nader Abuhassan, Li Ang, Monica Anguas, Alkis Bais, Nuria Benavent, Tim Bösch, Kristof Bognar, Alexander Borovski, Ilya Bruchkouski, Alexander Cede, Ka Lok Chan, Sebastian Donner, Theano Drosoglou, Caroline Fayt, Henning Finkenzeller, David Garcia-Nieto, Clio Gielen, Laura Gómez-Martín, Nan Hao, Bas Henzing, Jay R. Herman, Christian Hermans, Syedul Hoque, Hitoshi Irie, Junli Jin, Paul Johnston, Junaid Khayyam Butt, Fahim Khokhar, Theodore K. Koenig, Jonas Kuhn, Vinod Kumar, Cheng Liu, Jianzhong Ma, Alexis Merlaud, Abhishek K. Mishra, Moritz Müller, Monica Navarro-Comas, Mareike Ostendorf, Andrea Pazmino, Enno Peters, Gaia Pinardi, Manuel Pinharanda, Ankie Piters, Ulrich Platt, Oleg Postylyakov, Cristina Prados-Roman, Olga Puentedura, Richard Querel, Alfonso Saiz-Lopez, Anja Schönhardt, Stefan F. Schreier, André Seyler, Vinayak Sinha, Elena Spinei, Kimberly Strong, Frederik Tack, Xin Tian, Martin Tiefengraber, Jan-Lukas Tirpitz, Jeroen van Gent, Rainer Volkamer, Mihalis Vrekoussis, Shanshan Wang, Zhuoru Wang, Mark Wenig, Folkard Wittrock, Pinhua H. Xie, Jin Xu, Margarita Yela, Chengxin Zhang, and Xiaoyi Zhao
Atmos. Meas. Tech., 13, 2169–2208, https://doi.org/10.5194/amt-13-2169-2020, https://doi.org/10.5194/amt-13-2169-2020, 2020
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In September 2016, 36 spectrometers from 24 institutes measured a number of key atmospheric pollutants during an instrument intercomparison campaign (CINDI-2) at Cabauw, the Netherlands. Here we report on the outcome of this intercomparison exercise. The three major goals were to characterise the differences between the participating instruments, to define a robust methodology for performance assessment, and to contribute to the harmonisation of the measurement settings and retrieval methods.
T. Sherwen, M. J. Evans, L. J. Carpenter, S. J. Andrews, R. T. Lidster, B. Dix, T. K. Koenig, R. Sinreich, I. Ortega, R. Volkamer, A. Saiz-Lopez, C. Prados-Roman, A. S. Mahajan, and C. Ordóñez
Atmos. Chem. Phys., 16, 1161–1186, https://doi.org/10.5194/acp-16-1161-2016, https://doi.org/10.5194/acp-16-1161-2016, 2016
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Using a global chemical transport model (GEOS-Chem) with additional iodine emissions, chemistry, and deposition we show that iodine is responsible for ~ 9 % of global ozone loss but has negligible impacts on global OH. Uncertainties are large in the chemistry and emissions and future research is needed in both. Measurements of iodine species (especially HOI) would be useful. We believe iodine chemistry should be considered in future chemistry-climate and in air quality modelling.
C. Prados-Roman, C. A. Cuevas, R. P. Fernandez, D. E. Kinnison, J-F. Lamarque, and A. Saiz-Lopez
Atmos. Chem. Phys., 15, 2215–2224, https://doi.org/10.5194/acp-15-2215-2015, https://doi.org/10.5194/acp-15-2215-2015, 2015
C. Prados-Roman, C. A. Cuevas, T. Hay, R. P. Fernandez, A. S. Mahajan, S.-J. Royer, M. Galí, R. Simó, J. Dachs, K. Großmann, D. E. Kinnison, J.-F. Lamarque, and A. Saiz-Lopez
Atmos. Chem. Phys., 15, 583–593, https://doi.org/10.5194/acp-15-583-2015, https://doi.org/10.5194/acp-15-583-2015, 2015
L. Kritten, A. Butz, M. P. Chipperfield, M. Dorf, S. Dhomse, R. Hossaini, H. Oelhaf, C. Prados-Roman, G. Wetzel, and K. Pfeilsticker
Atmos. Chem. Phys., 14, 9555–9566, https://doi.org/10.5194/acp-14-9555-2014, https://doi.org/10.5194/acp-14-9555-2014, 2014
F. Wang, A. Saiz-Lopez, A. S. Mahajan, J. C. Gómez Martín, D. Armstrong, M. Lemes, T. Hay, and C. Prados-Roman
Atmos. Chem. Phys., 14, 1323–1335, https://doi.org/10.5194/acp-14-1323-2014, https://doi.org/10.5194/acp-14-1323-2014, 2014
A. S. Mahajan, J. C. Gómez Martín, T. D. Hay, S.-J. Royer, S. Yvon-Lewis, Y. Liu, L. Hu, C. Prados-Roman, C. Ordóñez, J. M. C. Plane, and A. Saiz-Lopez
Atmos. Chem. Phys., 12, 11609–11617, https://doi.org/10.5194/acp-12-11609-2012, https://doi.org/10.5194/acp-12-11609-2012, 2012
África Barreto, Emilio Cuevas, Rosa D. García, Judit Carrillo, Joseph M. Prospero, Luka Ilić, Sara Basart, Alberto J. Berjón, Carlos L. Marrero, Yballa Hernández, Juan José Bustos, Slobodan Ničković, and Margarita Yela
Atmos. Chem. Phys., 22, 739–763, https://doi.org/10.5194/acp-22-739-2022, https://doi.org/10.5194/acp-22-739-2022, 2022
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In this study, we categorise the different patterns of dust transport over the subtropical North Atlantic and for the first time robustly describe the dust vertical distribution in the Saharan Air Layer (SAL) over this region. Our results revealed the important role that both dust and water vapour play in the radiative balance in summer and winter and confirm the role of the SAL in the formation of mid-level clouds as a result of the activation of heterogeneous ice nucleation processes.
Gaia Pinardi, Michel Van Roozendael, François Hendrick, Andreas Richter, Pieter Valks, Ramina Alwarda, Kristof Bognar, Udo Frieß, José Granville, Myojeong Gu, Paul Johnston, Cristina Prados-Roman, Richard Querel, Kimberly Strong, Thomas Wagner, Folkard Wittrock, and Margarita Yela Gonzalez
Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2021-356, https://doi.org/10.5194/amt-2021-356, 2021
Preprint under review for AMT
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We report on the GOME-2A and GOME-2B OClO datasets (2007 to 2016, from the EUMETSAT’s AC SAF) validation using data from 9 NDACC Zenith-Scattered-Light DOAS (ZSL-DOAS) instruments distributed in both the Arctic and Antarctic. Specific sensitivity tests are performed on the ground-based data to estimate the impact of the different OClO DOAS analysis settings and their typical errors. Good agreement is found, both for the inter-annual variability and the overall OClO seasonal behaviour.
Clémence Rose, Martine Collaud Coen, Elisabeth Andrews, Yong Lin, Isaline Bossert, Cathrine Lund Myhre, Thomas Tuch, Alfred Wiedensohler, Markus Fiebig, Pasi Aalto, Andrés Alastuey, Elisabeth Alonso-Blanco, Marcos Andrade, Begoña Artíñano, Todor Arsov, Urs Baltensperger, Susanne Bastian, Olaf Bath, Johan Paul Beukes, Benjamin T. Brem, Nicolas Bukowiecki, Juan Andrés Casquero-Vera, Sébastien Conil, Konstantinos Eleftheriadis, Olivier Favez, Harald Flentje, Maria I. Gini, Francisco Javier Gómez-Moreno, Martin Gysel-Beer, Anna Gannet Hallar, Ivo Kalapov, Nikos Kalivitis, Anne Kasper-Giebl, Melita Keywood, Jeong Eun Kim, Sang-Woo Kim, Adam Kristensson, Markku Kulmala, Heikki Lihavainen, Neng-Huei Lin, Hassan Lyamani, Angela Marinoni, Sebastiao Martins Dos Santos, Olga L. Mayol-Bracero, Frank Meinhardt, Maik Merkel, Jean-Marc Metzger, Nikolaos Mihalopoulos, Jakub Ondracek, Marco Pandolfi, Noemi Pérez, Tuukka Petäjä, Jean-Eudes Petit, David Picard, Jean-Marc Pichon, Veronique Pont, Jean-Philippe Putaud, Fabienne Reisen, Karine Sellegri, Sangeeta Sharma, Gerhard Schauer, Patrick Sheridan, James Patrick Sherman, Andreas Schwerin, Ralf Sohmer, Mar Sorribas, Junying Sun, Pierre Tulet, Ville Vakkari, Pieter Gideon van Zyl, Fernando Velarde, Paolo Villani, Stergios Vratolis, Zdenek Wagner, Sheng-Hsiang Wang, Kay Weinhold, Rolf Weller, Margarita Yela, Vladimir Zdimal, and Paolo Laj
Atmos. Chem. Phys., 21, 17185–17223, https://doi.org/10.5194/acp-21-17185-2021, https://doi.org/10.5194/acp-21-17185-2021, 2021
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Aerosol particles are a complex component of the atmospheric system the effects of which are among the most uncertain in climate change projections. Using data collected at 62 stations, this study provides the most up-to-date picture of the spatial distribution of particle number concentration and size distribution worldwide, with the aim of contributing to better representation of aerosols and their interactions with clouds in models and, therefore, better evaluation of their impact on climate.
Omaira E. García, Matthias Schneider, Eliezer Sepúlveda, Frank Hase, Thomas Blumenstock, Emilio Cuevas, Ramón Ramos, Jochen Gross, Sabine Barthlott, Amelie N. Röhling, Esther Sanromá, Yenny González, Ángel J. Gómez-Peláez, Mónica Navarro-Comas, Olga Puentedura, Margarita Yela, Alberto Redondas, Virgilio Carreño, Sergio F. León-Luis, Enrique Reyes, Rosa D. García, Pedro P. Rivas, Pedro M. Romero-Campos, Carlos Torres, Natalia Prats, Miguel Hernández, and César López
Atmos. Chem. Phys., 21, 15519–15554, https://doi.org/10.5194/acp-21-15519-2021, https://doi.org/10.5194/acp-21-15519-2021, 2021
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This paper analyses the potential of ground-based Fourier transform infrared (FTIR) solar observations to monitor atmospheric gaseous composition and investigate multiple climate processes. To this end, this work reviews the FTIR programme of one of most relevant ground-based FTIR stations at a global scale, the subtropical Izaña Observatory (IZO, Spain), going over its history during its first 20 years of operation (1999–2018) and exploring its great value for long-term climate research.
Eloise A. Marais, John F. Roberts, Robert G. Ryan, Henk Eskes, K. Folkert Boersma, Sungyeon Choi, Joanna Joiner, Nader Abuhassan, Alberto Redondas, Michel Grutter, Alexander Cede, Laura Gomez, and Monica Navarro-Comas
Atmos. Meas. Tech., 14, 2389–2408, https://doi.org/10.5194/amt-14-2389-2021, https://doi.org/10.5194/amt-14-2389-2021, 2021
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Nitrogen oxides in the upper troposphere have a profound influence on the global troposphere, but routine reliable observations there are exceedingly rare. We apply cloud-slicing to TROPOMI total columns of nitrogen dioxide (NO2) at high spatial resolution to derive near-global observations of NO2 in the upper troposphere and show consistency with existing datasets. These data offer tremendous potential to address knowledge gaps in this oft underappreciated portion of the atmosphere.
Tijl Verhoelst, Steven Compernolle, Gaia Pinardi, Jean-Christopher Lambert, Henk J. Eskes, Kai-Uwe Eichmann, Ann Mari Fjæraa, José Granville, Sander Niemeijer, Alexander Cede, Martin Tiefengraber, François Hendrick, Andrea Pazmiño, Alkiviadis Bais, Ariane Bazureau, K. Folkert Boersma, Kristof Bognar, Angelika Dehn, Sebastian Donner, Aleksandr Elokhov, Manuel Gebetsberger, Florence Goutail, Michel Grutter de la Mora, Aleksandr Gruzdev, Myrto Gratsea, Georg H. Hansen, Hitoshi Irie, Nis Jepsen, Yugo Kanaya, Dimitris Karagkiozidis, Rigel Kivi, Karin Kreher, Pieternel F. Levelt, Cheng Liu, Moritz Müller, Monica Navarro Comas, Ankie J. M. Piters, Jean-Pierre Pommereau, Thierry Portafaix, Cristina Prados-Roman, Olga Puentedura, Richard Querel, Julia Remmers, Andreas Richter, John Rimmer, Claudia Rivera Cárdenas, Lidia Saavedra de Miguel, Valery P. Sinyakov, Wolfgang Stremme, Kimberly Strong, Michel Van Roozendael, J. Pepijn Veefkind, Thomas Wagner, Folkard Wittrock, Margarita Yela González, and Claus Zehner
Atmos. Meas. Tech., 14, 481–510, https://doi.org/10.5194/amt-14-481-2021, https://doi.org/10.5194/amt-14-481-2021, 2021
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This paper reports on the ground-based validation of the NO2 data produced operationally by the TROPOMI instrument on board the Sentinel-5 Precursor satellite. Tropospheric, stratospheric, and total NO2 columns are compared to measurements collected from MAX-DOAS, ZSL-DOAS, and PGN/Pandora instruments respectively. The products are found to satisfy mission requirements in general, though negative mean differences are found at sites with high pollution levels. Potential causes are discussed.
Jan-Lukas Tirpitz, Udo Frieß, François Hendrick, Carlos Alberti, Marc Allaart, Arnoud Apituley, Alkis Bais, Steffen Beirle, Stijn Berkhout, Kristof Bognar, Tim Bösch, Ilya Bruchkouski, Alexander Cede, Ka Lok Chan, Mirjam den Hoed, Sebastian Donner, Theano Drosoglou, Caroline Fayt, Martina M. Friedrich, Arnoud Frumau, Lou Gast, Clio Gielen, Laura Gomez-Martín, Nan Hao, Arjan Hensen, Bas Henzing, Christian Hermans, Junli Jin, Karin Kreher, Jonas Kuhn, Johannes Lampel, Ang Li, Cheng Liu, Haoran Liu, Jianzhong Ma, Alexis Merlaud, Enno Peters, Gaia Pinardi, Ankie Piters, Ulrich Platt, Olga Puentedura, Andreas Richter, Stefan Schmitt, Elena Spinei, Deborah Stein Zweers, Kimberly Strong, Daan Swart, Frederik Tack, Martin Tiefengraber, René van der Hoff, Michel van Roozendael, Tim Vlemmix, Jan Vonk, Thomas Wagner, Yang Wang, Zhuoru Wang, Mark Wenig, Matthias Wiegner, Folkard Wittrock, Pinhua Xie, Chengzhi Xing, Jin Xu, Margarita Yela, Chengxin Zhang, and Xiaoyi Zhao
Atmos. Meas. Tech., 14, 1–35, https://doi.org/10.5194/amt-14-1-2021, https://doi.org/10.5194/amt-14-1-2021, 2021
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Multi-axis differential optical absorption spectroscopy (MAX-DOAS) is a ground-based remote sensing measurement technique that derives atmospheric aerosol and trace gas vertical profiles from skylight spectra. In this study, consistency and reliability of MAX-DOAS profiles are assessed by applying nine different evaluation algorithms to spectral data recorded during an intercomparison campaign in the Netherlands and by comparing the results to colocated supporting observations.
Yang Wang, Arnoud Apituley, Alkiviadis Bais, Steffen Beirle, Nuria Benavent, Alexander Borovski, Ilya Bruchkouski, Ka Lok Chan, Sebastian Donner, Theano Drosoglou, Henning Finkenzeller, Martina M. Friedrich, Udo Frieß, David Garcia-Nieto, Laura Gómez-Martín, François Hendrick, Andreas Hilboll, Junli Jin, Paul Johnston, Theodore K. Koenig, Karin Kreher, Vinod Kumar, Aleksandra Kyuberis, Johannes Lampel, Cheng Liu, Haoran Liu, Jianzhong Ma, Oleg L. Polyansky, Oleg Postylyakov, Richard Querel, Alfonso Saiz-Lopez, Stefan Schmitt, Xin Tian, Jan-Lukas Tirpitz, Michel Van Roozendael, Rainer Volkamer, Zhuoru Wang, Pinhua Xie, Chengzhi Xing, Jin Xu, Margarita Yela, Chengxin Zhang, and Thomas Wagner
Atmos. Meas. Tech., 13, 5087–5116, https://doi.org/10.5194/amt-13-5087-2020, https://doi.org/10.5194/amt-13-5087-2020, 2020
Paolo Laj, Alessandro Bigi, Clémence Rose, Elisabeth Andrews, Cathrine Lund Myhre, Martine Collaud Coen, Yong Lin, Alfred Wiedensohler, Michael Schulz, John A. Ogren, Markus Fiebig, Jonas Gliß, Augustin Mortier, Marco Pandolfi, Tuukka Petäja, Sang-Woo Kim, Wenche Aas, Jean-Philippe Putaud, Olga Mayol-Bracero, Melita Keywood, Lorenzo Labrador, Pasi Aalto, Erik Ahlberg, Lucas Alados Arboledas, Andrés Alastuey, Marcos Andrade, Begoña Artíñano, Stina Ausmeel, Todor Arsov, Eija Asmi, John Backman, Urs Baltensperger, Susanne Bastian, Olaf Bath, Johan Paul Beukes, Benjamin T. Brem, Nicolas Bukowiecki, Sébastien Conil, Cedric Couret, Derek Day, Wan Dayantolis, Anna Degorska, Konstantinos Eleftheriadis, Prodromos Fetfatzis, Olivier Favez, Harald Flentje, Maria I. Gini, Asta Gregorič, Martin Gysel-Beer, A. Gannet Hallar, Jenny Hand, Andras Hoffer, Christoph Hueglin, Rakesh K. Hooda, Antti Hyvärinen, Ivo Kalapov, Nikos Kalivitis, Anne Kasper-Giebl, Jeong Eun Kim, Giorgos Kouvarakis, Irena Kranjc, Radovan Krejci, Markku Kulmala, Casper Labuschagne, Hae-Jung Lee, Heikki Lihavainen, Neng-Huei Lin, Gunter Löschau, Krista Luoma, Angela Marinoni, Sebastiao Martins Dos Santos, Frank Meinhardt, Maik Merkel, Jean-Marc Metzger, Nikolaos Mihalopoulos, Nhat Anh Nguyen, Jakub Ondracek, Noemi Pérez, Maria Rita Perrone, Jean-Eudes Petit, David Picard, Jean-Marc Pichon, Veronique Pont, Natalia Prats, Anthony Prenni, Fabienne Reisen, Salvatore Romano, Karine Sellegri, Sangeeta Sharma, Gerhard Schauer, Patrick Sheridan, James Patrick Sherman, Maik Schütze, Andreas Schwerin, Ralf Sohmer, Mar Sorribas, Martin Steinbacher, Junying Sun, Gloria Titos, Barbara Toczko, Thomas Tuch, Pierre Tulet, Peter Tunved, Ville Vakkari, Fernando Velarde, Patricio Velasquez, Paolo Villani, Sterios Vratolis, Sheng-Hsiang Wang, Kay Weinhold, Rolf Weller, Margarita Yela, Jesus Yus-Diez, Vladimir Zdimal, Paul Zieger, and Nadezda Zikova
Atmos. Meas. Tech., 13, 4353–4392, https://doi.org/10.5194/amt-13-4353-2020, https://doi.org/10.5194/amt-13-4353-2020, 2020
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The paper establishes the fiducial reference of the GAW aerosol network providing the fully characterized value chain to the provision of four climate-relevant aerosol properties from ground-based sites. Data from almost 90 stations worldwide are reported for a reference year, 2017, providing a unique and very robust view of the variability of these variables worldwide. Current gaps in the GAW network are analysed and requirements for the Global Climate Monitoring System are proposed.
Karin Kreher, Michel Van Roozendael, Francois Hendrick, Arnoud Apituley, Ermioni Dimitropoulou, Udo Frieß, Andreas Richter, Thomas Wagner, Johannes Lampel, Nader Abuhassan, Li Ang, Monica Anguas, Alkis Bais, Nuria Benavent, Tim Bösch, Kristof Bognar, Alexander Borovski, Ilya Bruchkouski, Alexander Cede, Ka Lok Chan, Sebastian Donner, Theano Drosoglou, Caroline Fayt, Henning Finkenzeller, David Garcia-Nieto, Clio Gielen, Laura Gómez-Martín, Nan Hao, Bas Henzing, Jay R. Herman, Christian Hermans, Syedul Hoque, Hitoshi Irie, Junli Jin, Paul Johnston, Junaid Khayyam Butt, Fahim Khokhar, Theodore K. Koenig, Jonas Kuhn, Vinod Kumar, Cheng Liu, Jianzhong Ma, Alexis Merlaud, Abhishek K. Mishra, Moritz Müller, Monica Navarro-Comas, Mareike Ostendorf, Andrea Pazmino, Enno Peters, Gaia Pinardi, Manuel Pinharanda, Ankie Piters, Ulrich Platt, Oleg Postylyakov, Cristina Prados-Roman, Olga Puentedura, Richard Querel, Alfonso Saiz-Lopez, Anja Schönhardt, Stefan F. Schreier, André Seyler, Vinayak Sinha, Elena Spinei, Kimberly Strong, Frederik Tack, Xin Tian, Martin Tiefengraber, Jan-Lukas Tirpitz, Jeroen van Gent, Rainer Volkamer, Mihalis Vrekoussis, Shanshan Wang, Zhuoru Wang, Mark Wenig, Folkard Wittrock, Pinhua H. Xie, Jin Xu, Margarita Yela, Chengxin Zhang, and Xiaoyi Zhao
Atmos. Meas. Tech., 13, 2169–2208, https://doi.org/10.5194/amt-13-2169-2020, https://doi.org/10.5194/amt-13-2169-2020, 2020
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In September 2016, 36 spectrometers from 24 institutes measured a number of key atmospheric pollutants during an instrument intercomparison campaign (CINDI-2) at Cabauw, the Netherlands. Here we report on the outcome of this intercomparison exercise. The three major goals were to characterise the differences between the participating instruments, to define a robust methodology for performance assessment, and to contribute to the harmonisation of the measurement settings and retrieval methods.
Alberto Berjón, Africa Barreto, Yballa Hernández, Margarita Yela, Carlos Toledano, and Emilio Cuevas
Atmos. Chem. Phys., 19, 6331–6349, https://doi.org/10.5194/acp-19-6331-2019, https://doi.org/10.5194/acp-19-6331-2019, 2019
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Lidar ratio is a key parameter for the aerosol characterization using satellite remote-sensing platforms as CALIOP. However, there are important differences in the values reported in the bibliography. The geographic characteristics of the IARC observatories location and a 10-year data series allow us to make a unique study of the mineral dust in the Saharan air layer. We report lidar ratios at 523 nm of 49 ± 6 sr and 50 ± 11 sr obtained by two different methods.
Thomas Wagner, Steffen Beirle, Nuria Benavent, Tim Bösch, Ka Lok Chan, Sebastian Donner, Steffen Dörner, Caroline Fayt, Udo Frieß, David García-Nieto, Clio Gielen, David González-Bartolome, Laura Gomez, François Hendrick, Bas Henzing, Jun Li Jin, Johannes Lampel, Jianzhong Ma, Kornelia Mies, Mónica Navarro, Enno Peters, Gaia Pinardi, Olga Puentedura, Janis Puķīte, Julia Remmers, Andreas Richter, Alfonso Saiz-Lopez, Reza Shaiganfar, Holger Sihler, Michel Van Roozendael, Yang Wang, and Margarita Yela
Atmos. Meas. Tech., 12, 2745–2817, https://doi.org/10.5194/amt-12-2745-2019, https://doi.org/10.5194/amt-12-2745-2019, 2019
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In this study the consistency between MAX-DOAS measurements and radiative transfer simulations of the atmospheric O4 absorption is investigated. The study is based on measurements (2 selected days during the MADCAT campaign) as well as synthetic spectra. The uncertainties of all relevant aspects (spectral retrieval and radiative transfer simulations) are quantified. For one of the selected days, measurements and simulations do not agree within their uncertainties.
Kaisa Lakkala, Alberto Redondas, Outi Meinander, Laura Thölix, Britta Hamari, Antonio Fernando Almansa, Virgilio Carreno, Rosa Delia García, Carlos Torres, Guillermo Deferrari, Hector Ochoa, Germar Bernhard, Ricardo Sanchez, and Gerrit de Leeuw
Atmos. Chem. Phys., 18, 16019–16031, https://doi.org/10.5194/acp-18-16019-2018, https://doi.org/10.5194/acp-18-16019-2018, 2018
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Solar UV irradiances were measured at Ushuaia (54° S) and Marambio (64° S) during 2000–2013. The measurements were part of the Antarctic NILU-UV network, which was maintained as a cooperation between Spain, Argentina and Finland. The time series of the network were analysed for the first time in this study. At both stations maximum UV indices and daily doses were measured when spring-time ozone loss episodes occurred. The maximum UV index was 13 and 12 in Ushuaia and Marambio, respectively.
Margarita Yela, Manuel Gil-Ojeda, Mónica Navarro-Comas, David Gonzalez-Bartolomé, Olga Puentedura, Bernd Funke, Javier Iglesias, Santiago Rodríguez, Omaira García, Héctor Ochoa, and Guillermo Deferrari
Atmos. Chem. Phys., 17, 13373–13389, https://doi.org/10.5194/acp-17-13373-2017, https://doi.org/10.5194/acp-17-13373-2017, 2017
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The paper focuses on stratospheric trends of NO2, a species involved in the ozone equilibrium, using data from four NDACC stations. The global stratospheric NO2 trend has not yet been established conclusively. We analyse DOAS data from stations in the Northern Hemisphere and Southern Hemisphere during 1993–2014. The most relevant finding is the hemispheric asymmetry found in the sign of the NO2 trend, providing further evidence of changes in the stratosphere dynamics on the global scale.
Yang Wang, Steffen Beirle, Francois Hendrick, Andreas Hilboll, Junli Jin, Aleksandra A. Kyuberis, Johannes Lampel, Ang Li, Yuhan Luo, Lorenzo Lodi, Jianzhong Ma, Monica Navarro, Ivan Ortega, Enno Peters, Oleg L. Polyansky, Julia Remmers, Andreas Richter, Olga Puentedura, Michel Van Roozendael, André Seyler, Jonathan Tennyson, Rainer Volkamer, Pinhua Xie, Nikolai F. Zobov, and Thomas Wagner
Atmos. Meas. Tech., 10, 3719–3742, https://doi.org/10.5194/amt-10-3719-2017, https://doi.org/10.5194/amt-10-3719-2017, 2017
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Slant column densities of nitrous acid (HONO) derived from different MAX-DOAS instruments and retrieval software are systematically compared for the first time during the Multi Axis DOAS – Comparison campaign for Aerosols and Trace gases (MAD-CAT) campaign held at MPIC in Mainz, Germany, from June to October 2013. Through the inter-comparisons and sensitivity studies we quantified the uncertainties in the DOAS fits of HONO from different sources and concluded a recommended setting.
África Barreto, Roberto Román, Emilio Cuevas, Alberto J. Berjón, A. Fernando Almansa, Carlos Toledano, Ramiro González, Yballa Hernández, Luc Blarel, Philippe Goloub, Carmen Guirado, and Margarita Yela
Atmos. Meas. Tech., 10, 3007–3019, https://doi.org/10.5194/amt-10-3007-2017, https://doi.org/10.5194/amt-10-3007-2017, 2017
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This work involves a first analysis of the systematic errors observed in the AOD retrieved at nighttime using the Sun–sky–lunar CE318-T photometer. In this respect, this paper is a first attempt to correct the AOD uncertainties that currently affect the lunar photometry by means of an empirical regression model. We have detected and corrected an important bias correlated to the Moon's phase and zenith angles, especially at longer wavelength channels.
Guanyu Huang, Xiong Liu, Kelly Chance, Kai Yang, Pawan K. Bhartia, Zhaonan Cai, Marc Allaart, Gérard Ancellet, Bertrand Calpini, Gerrie J. R. Coetzee, Emilio Cuevas-Agulló, Manuel Cupeiro, Hugo De Backer, Manvendra K. Dubey, Henry E. Fuelberg, Masatomo Fujiwara, Sophie Godin-Beekmann, Tristan J. Hall, Bryan Johnson, Everette Joseph, Rigel Kivi, Bogumil Kois, Ninong Komala, Gert König-Langlo, Giovanni Laneve, Thierry Leblanc, Marion Marchand, Kenneth R. Minschwaner, Gary Morris, Michael J. Newchurch, Shin-Ya Ogino, Nozomu Ohkawara, Ankie J. M. Piters, Françoise Posny, Richard Querel, Rinus Scheele, Frank J. Schmidlin, Russell C. Schnell, Otto Schrems, Henry Selkirk, Masato Shiotani, Pavla Skrivánková, René Stübi, Ghassan Taha, David W. Tarasick, Anne M. Thompson, Valérie Thouret, Matthew B. Tully, Roeland Van Malderen, Holger Vömel, Peter von der Gathen, Jacquelyn C. Witte, and Margarita Yela
Atmos. Meas. Tech., 10, 2455–2475, https://doi.org/10.5194/amt-10-2455-2017, https://doi.org/10.5194/amt-10-2455-2017, 2017
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It is essential to understand the data quality of +10-year OMI ozone product and impacts of the “row anomaly” (RA). We validate the OMI Ozone Profile (PROFOZ) product from Oct 2004 to Dec 2014 against ozonesonde observations globally. Generally, OMI has good agreement with ozonesondes. The spatiotemporal variation of retrieval performance suggests the need to improve OMI’s radiometric calibration especially during the post-RA period to maintain the long-term stability.
Enno Peters, Gaia Pinardi, André Seyler, Andreas Richter, Folkard Wittrock, Tim Bösch, Michel Van Roozendael, François Hendrick, Theano Drosoglou, Alkiviadis F. Bais, Yugo Kanaya, Xiaoyi Zhao, Kimberly Strong, Johannes Lampel, Rainer Volkamer, Theodore Koenig, Ivan Ortega, Olga Puentedura, Mónica Navarro-Comas, Laura Gómez, Margarita Yela González, Ankie Piters, Julia Remmers, Yang Wang, Thomas Wagner, Shanshan Wang, Alfonso Saiz-Lopez, David García-Nieto, Carlos A. Cuevas, Nuria Benavent, Richard Querel, Paul Johnston, Oleg Postylyakov, Alexander Borovski, Alexander Elokhov, Ilya Bruchkouski, Haoran Liu, Cheng Liu, Qianqian Hong, Claudia Rivera, Michel Grutter, Wolfgang Stremme, M. Fahim Khokhar, Junaid Khayyam, and John P. Burrows
Atmos. Meas. Tech., 10, 955–978, https://doi.org/10.5194/amt-10-955-2017, https://doi.org/10.5194/amt-10-955-2017, 2017
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This work is about harmonization of differential optical absorption spectroscopy retrieval codes, which is a remote sensing technique widely used to derive atmospheric trace gas amounts. The study is based on ground-based measurements performed during the Multi-Axis DOAS Comparison campaign for Aerosols and Trace gases (MAD-CAT) in Mainz, Germany, in summer 2013. In total, 17 international groups working in the field of the DOAS technique participated in this study.
Cristina Robles-Gonzalez, Mónica Navarro-Comas, Olga Puentedura, Matthias Schneider, Frank Hase, Omaira Garcia, Thomas Blumenstock, and Manuel Gil-Ojeda
Atmos. Meas. Tech., 9, 4471–4485, https://doi.org/10.5194/amt-9-4471-2016, https://doi.org/10.5194/amt-9-4471-2016, 2016
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The comparison of observations performed by different techniques and satellite instruments is important. An intercomparison of the stratospheric NO2 derived from ground-based and satellite instruments has been carried out over the Izaña subtropical site. The importance of the use of the effective solar zenith angle when comparing noon measurements with twilight measurements of photochemically active species is highlighted. All instruments show positive trends in NO2 stratospheric column.
África Barreto, Emilio Cuevas, María-José Granados-Muñoz, Lucas Alados-Arboledas, Pedro M. Romero, Julian Gröbner, Natalia Kouremeti, Antonio F. Almansa, Tom Stone, Carlos Toledano, Roberto Román, Mikhail Sorokin, Brent Holben, Marius Canini, and Margarita Yela
Atmos. Meas. Tech., 9, 631–654, https://doi.org/10.5194/amt-9-631-2016, https://doi.org/10.5194/amt-9-631-2016, 2016
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This paper presents the new photometer CE318-T, able to perform daytime and
night-time photometric measurements using the sun and the moon as light
sources. This new device permits a complete cycle of diurnal aerosol and water vapour measurements to be extracted, valuable to enhance atmospheric monitoring. We have also highlighted the ability of this new device to capture short-term atmospheric variations, critical for climate studies.
T. Sherwen, M. J. Evans, L. J. Carpenter, S. J. Andrews, R. T. Lidster, B. Dix, T. K. Koenig, R. Sinreich, I. Ortega, R. Volkamer, A. Saiz-Lopez, C. Prados-Roman, A. S. Mahajan, and C. Ordóñez
Atmos. Chem. Phys., 16, 1161–1186, https://doi.org/10.5194/acp-16-1161-2016, https://doi.org/10.5194/acp-16-1161-2016, 2016
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Using a global chemical transport model (GEOS-Chem) with additional iodine emissions, chemistry, and deposition we show that iodine is responsible for ~ 9 % of global ozone loss but has negligible impacts on global OH. Uncertainties are large in the chemistry and emissions and future research is needed in both. Measurements of iodine species (especially HOI) would be useful. We believe iodine chemistry should be considered in future chemistry-climate and in air quality modelling.
M. Gil-Ojeda, M. Navarro-Comas, L. Gómez-Martín, J. A. Adame, A. Saiz-Lopez, C. A. Cuevas, Y. González, O. Puentedura, E. Cuevas, J.-F. Lamarque, D. Kinninson, and S. Tilmes
Atmos. Chem. Phys., 15, 10567–10579, https://doi.org/10.5194/acp-15-10567-2015, https://doi.org/10.5194/acp-15-10567-2015, 2015
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The NO2 seasonal evolution in the free troposphere (FT) has been established for the first time, based on a remote sensing technique (MAXDOAS) and thus avoiding the problems of the local pollution of in situ instruments. A clear seasonality has been found, with background levels of 20-40pptv. Evidence has been found on fast, direct injection of surface air into the free troposphere. This result might have implications on the FT distribution of halogens and other species with marine sources.
C. Prados-Roman, C. A. Cuevas, R. P. Fernandez, D. E. Kinnison, J-F. Lamarque, and A. Saiz-Lopez
Atmos. Chem. Phys., 15, 2215–2224, https://doi.org/10.5194/acp-15-2215-2015, https://doi.org/10.5194/acp-15-2215-2015, 2015
C. Prados-Roman, C. A. Cuevas, T. Hay, R. P. Fernandez, A. S. Mahajan, S.-J. Royer, M. Galí, R. Simó, J. Dachs, K. Großmann, D. E. Kinnison, J.-F. Lamarque, and A. Saiz-Lopez
Atmos. Chem. Phys., 15, 583–593, https://doi.org/10.5194/acp-15-583-2015, https://doi.org/10.5194/acp-15-583-2015, 2015
H. Diémoz, A. M. Siani, A. Redondas, V. Savastiouk, C. T. McElroy, M. Navarro-Comas, and F. Hase
Atmos. Meas. Tech., 7, 4009–4022, https://doi.org/10.5194/amt-7-4009-2014, https://doi.org/10.5194/amt-7-4009-2014, 2014
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- A new algorithm to retrieve nitrogen dioxide by Brewer spectrophotometers was developed.
- Direct sun and zenith sky data recorded at the Izaña observatory were processed with the new algorithm and compared to co-located reference instruments.
- The measurement uncertainty was thoroughly determined by using a Monte Carlo technique.
- The new algorithm can be applied to more than 60 Brewers around the world.
L. Gomez, M. Navarro-Comas, O. Puentedura, Y. Gonzalez, E. Cuevas, and M. Gil-Ojeda
Atmos. Meas. Tech., 7, 3373–3386, https://doi.org/10.5194/amt-7-3373-2014, https://doi.org/10.5194/amt-7-3373-2014, 2014
L. Kritten, A. Butz, M. P. Chipperfield, M. Dorf, S. Dhomse, R. Hossaini, H. Oelhaf, C. Prados-Roman, G. Wetzel, and K. Pfeilsticker
Atmos. Chem. Phys., 14, 9555–9566, https://doi.org/10.5194/acp-14-9555-2014, https://doi.org/10.5194/acp-14-9555-2014, 2014
F. Wang, A. Saiz-Lopez, A. S. Mahajan, J. C. Gómez Martín, D. Armstrong, M. Lemes, T. Hay, and C. Prados-Roman
Atmos. Chem. Phys., 14, 1323–1335, https://doi.org/10.5194/acp-14-1323-2014, https://doi.org/10.5194/acp-14-1323-2014, 2014
G. Pinardi, M. Van Roozendael, N. Abuhassan, C. Adams, A. Cede, K. Clémer, C. Fayt, U. Frieß, M. Gil, J. Herman, C. Hermans, F. Hendrick, H. Irie, A. Merlaud, M. Navarro Comas, E. Peters, A. J. M. Piters, O. Puentedura, A. Richter, A. Schönhardt, R. Shaiganfar, E. Spinei, K. Strong, H. Takashima, M. Vrekoussis, T. Wagner, F. Wittrock, and S. Yilmaz
Atmos. Meas. Tech., 6, 167–185, https://doi.org/10.5194/amt-6-167-2013, https://doi.org/10.5194/amt-6-167-2013, 2013
A. S. Mahajan, J. C. Gómez Martín, T. D. Hay, S.-J. Royer, S. Yvon-Lewis, Y. Liu, L. Hu, C. Prados-Roman, C. Ordóñez, J. M. C. Plane, and A. Saiz-Lopez
Atmos. Chem. Phys., 12, 11609–11617, https://doi.org/10.5194/acp-12-11609-2012, https://doi.org/10.5194/acp-12-11609-2012, 2012
Related subject area
Subject: Gases | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
Exploration of the atmospheric chemistry of nitrous acid in a coastal city of southeastern China: results from measurements across four seasons
Formaldehyde evolution in US wildfire plumes during the Fire Influence on Regional to Global Environments and Air Quality experiment (FIREX-AQ)
Measurement report: Photochemical production and loss rates of formaldehyde and ozone across Europe
Is the ocean surface a source of nitrous acid (HONO) in the marine boundary layer?
Measurement report: High contributions of halocarbon and aromatic compounds to atmospheric volatile organic compounds in an industrial area
Measurement report: Fast photochemical production of peroxyacetyl nitrate (PAN) over the rural North China Plain during haze events in autumn
Long-term atmospheric emissions for the Coal Oil Point natural marine hydrocarbon seep field, offshore California
Measurement report: Observation-based formaldehyde production rates and their relation to OH reactivity around the Arabian Peninsula
Comment on “Isotopic evidence for dominant secondary production of HONO in near-ground wildfire plumes” by Chai et al. (2021)
Measurement report: Regional characteristics of seasonal and long-term variations in greenhouse gases at Nainital, India, and Comilla, Bangladesh
Nighttime and daytime dark oxidation chemistry in wildfire plumes: an observation and model analysis of FIREX-AQ aircraft data
The effects of the COVID-19 lockdowns on the composition of the troposphere as seen by In-service Aircraft for a Global Observing System (IAGOS) at Frankfurt
Winter ClNO2 formation in the region of fresh anthropogenic emissions: seasonal variability and insights into daytime peaks in northern China
Speciated atmospheric mercury at the Waliguan Global Atmosphere Watch station in the northeastern Tibetan Plateau: implication of dust-related sources for particulate bound mercury
Measurement report: Variability in the composition of biogenic volatile organic compounds in a Southeastern US forest and their role in atmospheric reactivity
Spatially and temporally resolved measurements of NOx fluxes by airborne eddy covariance over Greater London
Temporary pause in the growth of atmospheric ethane and propane in 2015–2018
Formation of condensable organic vapors from anthropogenic and biogenic volatile organic compounds (VOCs) is strongly perturbed by NOx in eastern China
Seasonal and diurnal variations in biogenic volatile organic compounds in highland and lowland ecosystems in southern Kenya
Origins and characterization of CO and O3 in the African upper troposphere
First Observation of Mercury Species on an Important Water Vapor Channel in the Southeast Tibetan Plateau
The Fires, Asian, and Stratospheric Transport-Las Vegas Ozone Study (FAST-LVOS)
In situ ozone production is highly sensitive to volatile organic compounds in Delhi, India
Role of Criegee intermediates in the formation of sulfuric acid at a Mediterranean (Cape Corsica) site under influence of biogenic emissions
Dynamics of gaseous oxidized mercury at Villum Research Station during the High Arctic summer
Isotopic evidence for dominant secondary production of HONO in near-ground wildfire plumes
Opinion: Papers that shaped tropospheric chemistry
Measurement report: Source apportionment of volatile organic compounds at the remote high-altitude Maïdo observatory
Shipborne measurements of methane and carbon dioxide in the Middle East and Mediterranean areas and the contribution from oil and gas emissions
Observations of iodine monoxide over three summers at the Indian Antarctic bases of Bharati and Maitri
Swiss halocarbon emissions for 2019 to 2020 assessed from regional atmospheric observations
Unexplored volatile organic compound emitted from petrochemical facilities: implications for ozone production and atmospheric chemistry
Atmospheric Measurements at the Foot and the Summit of Mt. Tai – Part II: HONO Budget and Radical (ROx + NO3) Chemistry in the Lower Boundary Layer
Atmospheric gaseous hydrochloric and hydrobromic acid in urban Beijing, China: detection, source identification and potential atmospheric impacts
Impact of stratospheric air and surface emissions on tropospheric nitrous oxide during ATom
Spectrometric measurements of atmospheric propane (C3H8)
Air–sea exchange of acetone, acetaldehyde, DMS and isoprene at a UK coastal site
Measurement report: Emissions of intermediate-volatility organic compounds from vehicles under real-world driving conditions in an urban tunnel
Investigations on the anthropogenic reversal of the natural ozone gradient between northern and southern midlatitudes
Measurement report: Molecular composition and volatility of gaseous organic compounds in a boreal forest – from volatile organic compounds to highly oxygenated organic molecules
Boreal forest fire CO and CH4 emission factors derived from tower observations in Alaska during the extreme fire season of 2015
Chemical characterization of oxygenated organic compounds in the gas phase and particle phase using iodide CIMS with FIGAERO in urban air
New approach to evaluate satellite-derived XCO2 over oceans by integrating ship and aircraft observations
Central role of nitric oxide in ozone production in the upper tropical troposphere over the Atlantic Ocean and western Africa
Sesquiterpenes and oxygenated sesquiterpenes dominate the VOC (C5–C20) emissions of downy birches
Measurement report: Online measurement of gas-phase nitrated phenols utilizing a CI-LToF-MS: primary sources and secondary formation
Measurement report: In situ observations of deep convection without lightning during the tropical cyclone Florence 2018
Reactive nitrogen around the Arabian Peninsula and in the Mediterranean Sea during the 2017 AQABA ship campaign
Measurement report: Long-term variations in surface NOx and SO2 from 2006 to 2016 at a background site in the Yangtze River Delta region, China
Stratospheric carbon isotope fractionation and tropospheric histories of CFC-11, CFC-12, and CFC-113 isotopologues
Baoye Hu, Jun Duan, Youwei Hong, Lingling Xu, Mengren Li, Yahui Bian, Min Qin, Wu Fang, Pinhua Xie, and Jinsheng Chen
Atmos. Chem. Phys., 22, 371–393, https://doi.org/10.5194/acp-22-371-2022, https://doi.org/10.5194/acp-22-371-2022, 2022
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There has been a lack of research into HONO in coastal cities with low concentrations of PM2.5, but strong sunlight and high humidity. Insufficient research on coastal cities with good air quality has resulted in certain obstacles to assessing the photochemical processes in these areas. Furthermore, HONO contributes to the atmospheric photochemistry depending on the season. Therefore, observations of HONO across four seasons in the southeastern coastal area of China are urgently needed.
Jin Liao, Glenn M. Wolfe, Reem A. Hannun, Jason M. St. Clair, Thomas F. Hanisco, Jessica B. Gilman, Aaron Lamplugh, Vanessa Selimovic, Glenn S. Diskin, John B. Nowak, Hannah S. Halliday, Joshua P. DiGangi, Samuel R. Hall, Kirk Ullmann, Christopher D. Holmes, Charles H. Fite, Anxhelo Agastra, Thomas B. Ryerson, Jeff Peischl, Ilann Bourgeois, Carsten Warneke, Matthew M. Coggon, Georgios I. Gkatzelis, Kanako Sekimoto, Alan Fried, Dirk Richter, Petter Weibring, Eric C. Apel, Rebecca S. Hornbrook, Steven S. Brown, Caroline C. Womack, Michael A. Robinson, Rebecca A. Washenfelder, Patrick R. Veres, and J. Andrew Neuman
Atmos. Chem. Phys., 21, 18319–18331, https://doi.org/10.5194/acp-21-18319-2021, https://doi.org/10.5194/acp-21-18319-2021, 2021
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Formaldehyde (HCHO) is an important oxidant precursor and affects the formation of O3 and other secondary pollutants in wildfire plumes. We disentangle the processes controlling HCHO evolution from wildfire plumes sampled by NASA DC-8 during FIREX-AQ. We find that OH abundance rather than normalized OH reactivity is the main driver of fire-to-fire variability in HCHO secondary production and estimate an effective HCHO yield per volatile organic compound molecule oxidized in wildfire plumes.
Clara M. Nussbaumer, John N. Crowley, Jan Schuladen, Jonathan Williams, Sascha Hafermann, Andreas Reiffs, Raoul Axinte, Hartwig Harder, Cheryl Ernest, Anna Novelli, Katrin Sala, Monica Martinez, Chinmay Mallik, Laura Tomsche, Christian Plass-Dülmer, Birger Bohn, Jos Lelieveld, and Horst Fischer
Atmos. Chem. Phys., 21, 18413–18432, https://doi.org/10.5194/acp-21-18413-2021, https://doi.org/10.5194/acp-21-18413-2021, 2021
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HCHO is an important atmospheric trace gas influencing the photochemical processes in the Earth’s atmosphere, including the budget of HOx and the abundance of tropospheric O3. This research presents the photochemical calculations of HCHO and O3 based on three field campaigns across Europe. We show that HCHO production via the oxidation of only four volatile organic compound precursors, i.e., CH4, CH3CHO, C5H8 and CH3OH, can balance the observed loss at all sites well.
Leigh R. Crilley, Louisa J. Kramer, Francis D. Pope, Chris Reed, James D. Lee, Lucy J. Carpenter, Lloyd D. J. Hollis, Stephen M. Ball, and William J. Bloss
Atmos. Chem. Phys., 21, 18213–18225, https://doi.org/10.5194/acp-21-18213-2021, https://doi.org/10.5194/acp-21-18213-2021, 2021
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Nitrous acid (HONO) is a key source of atmospheric oxidants. We evaluate if the ocean surface is a source of HONO for the marine boundary layer, using measurements from two contrasting coastal locations. We observed no evidence for a night-time ocean surface source, in contrast to previous work. This points to significant geographical variation in the predominant HONO formation mechanisms in marine environments, reflecting possible variability in the sea-surface microlayer composition.
Ahsan Mozaffar, Yan-Lin Zhang, Yu-Chi Lin, Feng Xie, Mei-Yi Fan, and Fang Cao
Atmos. Chem. Phys., 21, 18087–18099, https://doi.org/10.5194/acp-21-18087-2021, https://doi.org/10.5194/acp-21-18087-2021, 2021
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We performed a long-term investigation of ambient volatile organic compounds (VOCs) in an industrial area in Nanjing, China. Followed by alkanes, halocarbons and aromatics were the most abundant VOC groups. Vehicle-related emissions were the major VOC sources in the study area. Aromatic and alkene VOCs were responsible for most of the atmospheric reactions.
Yulu Qiu, Zhiqiang Ma, Ke Li, Mengyu Huang, Jiujiang Sheng, Ping Tian, Jia Zhu, Weiwei Pu, Yingxiao Tang, Tingting Han, Huaigang Zhou, and Hong Liao
Atmos. Chem. Phys., 21, 17995–18010, https://doi.org/10.5194/acp-21-17995-2021, https://doi.org/10.5194/acp-21-17995-2021, 2021
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Photochemical pollution over the North China Plain (NCP) is attracting much concern. Our observations at a rural site in the NCP identified high peroxyacetyl nitrate (PAN) concentrations, even on cold days. Increased acetaldehyde concentration and hydroxyl radical production rates drive fast PAN formation. Moreover, our study emphasizes the importance of formaldehyde photolysis in PAN formation and calls for implementing strict volatile organic compound controls after summer over the NCP.
Ira Leifer, Christopher Melton, and Donald R. Blake
Atmos. Chem. Phys., 21, 17607–17629, https://doi.org/10.5194/acp-21-17607-2021, https://doi.org/10.5194/acp-21-17607-2021, 2021
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We demonstrate a novel application using air quality station data to derive 3-decade-averaged emissions from the Coal Oil Point (COP) seep field, a highly spatially and temporally variable geological migration system. Emissions were 19 Gg per year, suggesting that the COP seep field contributes 0.27 % of the global marine seep budget based on a recent estimate. This provides an advance over snapshot survey values by accounting for seasonal and interannual variations.
Dirk Dienhart, John N. Crowley, Efstratios Bourtsoukidis, Achim Edtbauer, Philipp G. Eger, Lisa Ernle, Hartwig Harder, Bettina Hottmann, Monica Martinez, Uwe Parchatka, Jean-Daniel Paris, Eva Y. Pfannerstill, Roland Rohloff, Jan Schuladen, Christof Stönner, Ivan Tadic, Sebastian Tauer, Nijing Wang, Jonathan Williams, Jos Lelieveld, and Horst Fischer
Atmos. Chem. Phys., 21, 17373–17388, https://doi.org/10.5194/acp-21-17373-2021, https://doi.org/10.5194/acp-21-17373-2021, 2021
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We present the first ship-based in situ measurements of formaldehyde (HCHO), hydroxyl radicals (OH) and the OH reactivity around the Arabian Peninsula. Regression analysis of the HCHO production rate and the related OH chemistry revealed the regional HCHO yield αeff, which represents the different chemical regimes encountered. Highest values were found for the Arabian Gulf (also known as the Persian Gulf), which highlights this region as a hotspot of photochemical air pollution.
James M. Roberts
Atmos. Chem. Phys., 21, 16793–16795, https://doi.org/10.5194/acp-21-16793-2021, https://doi.org/10.5194/acp-21-16793-2021, 2021
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This comment provides evidence that recently reported measurements of the isotope composition of wildfire-derived oxides of nitrogen have a significant interference from other nitrogen compounds. In addition, the conceptual model used to interpret the results was missing several key reactions.
Shohei Nomura, Manish Naja, M. Kawser Ahmed, Hitoshi Mukai, Yukio Terao, Toshinobu Machida, Motoki Sasakawa, and Prabir K. Patra
Atmos. Chem. Phys., 21, 16427–16452, https://doi.org/10.5194/acp-21-16427-2021, https://doi.org/10.5194/acp-21-16427-2021, 2021
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Long-term measurements of greenhouse gases (GHGs) in India and Bangladesh unveiled specific characteristics in their variations in these regions. Plants including rice cultivated in winter and summer strongly affected seasonal variations and levels in CO2 and CH4. Long-term variability of GHGs showed quite different features in their growth rates from those in Mauna Loa. GHG trends in this region seemed to be hardly affected by El Niño–Southern Oscillation (ENSO).
Zachary C. J. Decker, Michael A. Robinson, Kelley C. Barsanti, Ilann Bourgeois, Matthew M. Coggon, Joshua P. DiGangi, Glenn S. Diskin, Frank M. Flocke, Alessandro Franchin, Carley D. Fredrickson, Georgios I. Gkatzelis, Samuel R. Hall, Hannah Halliday, Christopher D. Holmes, L. Gregory Huey, Young Ro Lee, Jakob Lindaas, Ann M. Middlebrook, Denise D. Montzka, Richard Moore, J. Andrew Neuman, John B. Nowak, Brett B. Palm, Jeff Peischl, Felix Piel, Pamela S. Rickly, Andrew W. Rollins, Thomas B. Ryerson, Rebecca H. Schwantes, Kanako Sekimoto, Lee Thornhill, Joel A. Thornton, Geoffrey S. Tyndall, Kirk Ullmann, Paul Van Rooy, Patrick R. Veres, Carsten Warneke, Rebecca A. Washenfelder, Andrew J. Weinheimer, Elizabeth Wiggins, Edward Winstead, Armin Wisthaler, Caroline Womack, and Steven S. Brown
Atmos. Chem. Phys., 21, 16293–16317, https://doi.org/10.5194/acp-21-16293-2021, https://doi.org/10.5194/acp-21-16293-2021, 2021
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To understand air quality impacts from wildfires, we need an accurate picture of how wildfire smoke changes chemically both day and night as sunlight changes the chemistry of smoke. We present a chemical analysis of wildfire smoke as it changes from midday through the night. We use aircraft observations from the FIREX-AQ field campaign with a chemical box model. We find that even under sunlight typical
nighttimechemistry thrives and controls the fate of key smoke plume chemical processes.
Hannah Clark, Yasmine Bennouna, Maria Tsivlidou, Pawel Wolff, Bastien Sauvage, Brice Barret, Eric Le Flochmoën, Romain Blot, Damien Boulanger, Jean-Marc Cousin, Philippe Nédélec, Andreas Petzold, and Valérie Thouret
Atmos. Chem. Phys., 21, 16237–16256, https://doi.org/10.5194/acp-21-16237-2021, https://doi.org/10.5194/acp-21-16237-2021, 2021
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We examined 27 years of IAGOS (In-service Aircraft for a Global Observing System) profiles at Frankfurt to see if there were unusual features during the spring of 2020 related to COVID-19 lockdowns in Europe. Increased ozone near the surface was partly linked to the reduction in emissions. Carbon monoxide decreased near the surface, but the impact of the lockdowns was offset by polluted air masses from elsewhere. There were small reductions in ozone and carbon monoxide in the free troposphere.
Men Xia, Xiang Peng, Weihao Wang, Chuan Yu, Zhe Wang, Yee Jun Tham, Jianmin Chen, Hui Chen, Yujing Mu, Chenglong Zhang, Pengfei Liu, Likun Xue, Xinfeng Wang, Jian Gao, Hong Li, and Tao Wang
Atmos. Chem. Phys., 21, 15985–16000, https://doi.org/10.5194/acp-21-15985-2021, https://doi.org/10.5194/acp-21-15985-2021, 2021
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ClNO2 is an important precursor of chlorine radical that affects photochemistry. However, its production and impact are not well understood. Our study presents field observations of ClNO2 at three sites in northern China. These observations provide new insights into nighttime processes that produce ClNO2 and the significant impact of ClNO2 on secondary pollutions during daytime. The results improve the understanding of photochemical pollution in the lower part of the atmosphere.
Hui Zhang, Xuewu Fu, Ben Yu, Baoxin Li, Peng Liu, Guoqing Zhang, Leiming Zhang, and Xinbin Feng
Atmos. Chem. Phys., 21, 15847–15859, https://doi.org/10.5194/acp-21-15847-2021, https://doi.org/10.5194/acp-21-15847-2021, 2021
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Our observations of speciated atmospheric mercury at the Waliguan GAW Baseline Observatory show that concentrations of gaseous elemental mercury (GEM) and particulate bound mercury (PBM) were elevated compared to the Northern Hemisphere background. We propose that the major sources of GEM and PBM were mainly related to anthropogenic emissions and desert dust sources. This study highlights that dust-related sources played an important role in the variations of PBM in the Tibetan Plateau.
Deborah F. McGlynn, Laura E. R. Barry, Manuel T. Lerdau, Sally E. Pusede, and Gabriel Isaacman-VanWertz
Atmos. Chem. Phys., 21, 15755–15770, https://doi.org/10.5194/acp-21-15755-2021, https://doi.org/10.5194/acp-21-15755-2021, 2021
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We present 1 year of hourly measurements of chemically resolved Biogenic volatile organic compound (BVOCs) between 15 September 2019 and 15 September 2020, collected at a research tower in central Virginia. Concentrations of a range of BVOCs are described and examined for their impact on atmospheric reactivity. The majority of reactivity comes from α-pinene and limonene, highlighting the importance of both concentration and structure in assessing atmospheric impacts of emissions.
Adam R. Vaughan, James D. Lee, Stefan Metzger, David Durden, Alastair C. Lewis, Marvin D. Shaw, Will S. Drysdale, Ruth M. Purvis, Brian Davison, and C. Nicholas Hewitt
Atmos. Chem. Phys., 21, 15283–15298, https://doi.org/10.5194/acp-21-15283-2021, https://doi.org/10.5194/acp-21-15283-2021, 2021
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Validating emissions estimates of atmospheric pollutants is a vital pathway towards reducing urban concentrations of air pollution and ensuring effective legislative controls are implemented. The work presented here highlights a strategy capable of quantifying and spatially disaggregating NOx emissions over challenging urban terrain. This work shows great scope as a tool for emission inventory validation and independent generation of high-resolution surface emissions on a city-wide scale.
Hélène Angot, Connor Davel, Christine Wiedinmyer, Gabrielle Pétron, Jashan Chopra, Jacques Hueber, Brendan Blanchard, Ilann Bourgeois, Isaac Vimont, Stephen A. Montzka, Ben R. Miller, James W. Elkins, and Detlev Helmig
Atmos. Chem. Phys., 21, 15153–15170, https://doi.org/10.5194/acp-21-15153-2021, https://doi.org/10.5194/acp-21-15153-2021, 2021
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After a multidecadal global decline in atmospheric abundance of ethane and propane (precursors of tropospheric ozone and aerosols), previous work showed a reversal of this trend in 2009–2015 in the Northern Hemisphere due to the growth in oil and natural gas production in North America. Here we show a temporary pause in the growth of atmospheric ethane and propane in 2015–2018 and highlight the critical need for additional top-down studies to further constrain ethane and propane emissions.
Yuliang Liu, Wei Nie, Yuanyuan Li, Dafeng Ge, Chong Liu, Zhengning Xu, Liangduo Chen, Tianyi Wang, Lei Wang, Peng Sun, Ximeng Qi, Jiaping Wang, Zheng Xu, Jian Yuan, Chao Yan, Yanjun Zhang, Dandan Huang, Zhe Wang, Neil M. Donahue, Douglas Worsnop, Xuguang Chi, Mikael Ehn, and Aijun Ding
Atmos. Chem. Phys., 21, 14789–14814, https://doi.org/10.5194/acp-21-14789-2021, https://doi.org/10.5194/acp-21-14789-2021, 2021
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Oxygenated organic molecules (OOMs) are crucial intermediates linking volatile organic compounds to secondary organic aerosols. Using nitrate time-of-flight chemical ionization mass spectrometry in eastern China, we performed positive matrix factorization (PMF) on binned OOM mass spectra. We reconstructed over 1000 molecules from 14 derived PMF factors and identified about 72 % of the observed OOMs as organic nitrates, highlighting the decisive role of NOx in OOM formation in populated areas.
Yang Liu, Simon Schallhart, Ditte Taipale, Toni Tykkä, Matti Räsänen, Lutz Merbold, Heidi Hellén, and Petri Pellikka
Atmos. Chem. Phys., 21, 14761–14787, https://doi.org/10.5194/acp-21-14761-2021, https://doi.org/10.5194/acp-21-14761-2021, 2021
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We studied the mixing ratio of biogenic volatile organic compounds (BVOCs) in a humid highland and dry lowland African ecosystem in Kenya. The mixing ratio of monoterpenoids was similar to that measured in the relevant ecosystems in western and southern Africa, while that of isoprene was lower. Modeling the emission factors (EFs) for BVOCs from the lowlands, the EFs for isoprene and β-pinene agreed well with what is assumed in the MEGAN, while those of α-pinene and limonene were higher.
Victor Lannuque, Bastien Sauvage, Brice Barret, Hannah Clark, Gilles Athier, Damien Boulanger, Jean-Pierre Cammas, Jean-Marc Cousin, Alain Fontaine, Eric Le Flochmoën, Philippe Nédélec, Hervé Petetin, Isabelle Pfaffenzeller, Susanne Rohs, Herman G. J. Smit, Pawel Wolff, and Valérie Thouret
Atmos. Chem. Phys., 21, 14535–14555, https://doi.org/10.5194/acp-21-14535-2021, https://doi.org/10.5194/acp-21-14535-2021, 2021
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The African intertropical troposphere is one of the world areas where the increase in ozone mixing ratio has been most pronounced since 1980 and where high carbon monoxide mixing ratios are found in altitude. In this article, IAGOS aircraft measurements, IASI satellite instrument observations, and SOFT-IO model products are used to explore the seasonal distribution variations and the origin of ozone and carbon monoxide over the African upper troposphere.
Huiming Lin, Yindong Tong, Chenghao Yu, Long Chen, Xiufeng Yin, Qianggong Zhang, Shichang Kang, Lun Luo, James Schauer, Benjamin de Foy, and Xuejun Wang
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2021-357, https://doi.org/10.5194/acp-2021-357, 2021
Revised manuscript accepted for ACP
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The Tibetan Plateau is known as ‘The Third Pole’ and is generally considered to be a clean area owing to its high altitude. However, it may receive the impacts of air pollutants transported from the Indian subcontinent. Pollutants generally enter the Tibetan Plateau in several ways. Among them is the Yarlung Zangbu/Brahmaputra Grand Canyon. In this study, we identified the influence of the Indian summer monsoon on the origin, transport and behavior of mercury in this area.
Andrew O. Langford, Christoph J. Senff, Raul J. Alvarez II, Ken C. Aikin, Sunil Baidar, Timothy A. Bonin, W. Alan Brewer, Jerome Brioude, Steven S. Brown, Joel D. Burley, Dani J. Caputi, Stephen A. Conley, Patrick D. Cullis, Zachary C. J. Decker, Stéphanie Evan, Guillaume Kirgis, Meiyun Lin, Mariusz Pagowski, Jeff Peischl, Irina Petropavlovskikh, R. Bradley Pierce, Thomas B. Ryerson, Scott P. Sandberg, Chance W. Sterling, Ann W. Weickmann, and Li Zhang
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2021-690, https://doi.org/10.5194/acp-2021-690, 2021
Revised manuscript accepted for ACP
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The Fires, Asian, and Stratospheric Transport-Las Vegas Ozone Study (FAST-LVOS) combined lidar, aircraft, and in-situ measurements with global models to investigate the contributions of stratospheric intrusions, regional and Asian pollution, and wildfires on background ozone in the Southwestern U.S. during May and June. The study demonstrated that these processes contributed to background ozone levels that exceeded 70% of the U.S. National Ambient Air Quality Standard during the 6-week campaign.
Beth S. Nelson, Gareth J. Stewart, Will S. Drysdale, Mike J. Newland, Adam R. Vaughan, Rachel E. Dunmore, Pete M. Edwards, Alastair C. Lewis, Jacqueline F. Hamilton, W. Joe Acton, C. Nicholas Hewitt, Leigh R. Crilley, Mohammed S. Alam, Ülkü A. Şahin, David C. S. Beddows, William J. Bloss, Eloise Slater, Lisa K. Whalley, Dwayne E. Heard, James M. Cash, Ben Langford, Eiko Nemitz, Roberto Sommariva, Sam Cox, Shivani, Ranu Gadi, Bhola R. Gurjar, James R. Hopkins, Andrew R. Rickard, and James D. Lee
Atmos. Chem. Phys., 21, 13609–13630, https://doi.org/10.5194/acp-21-13609-2021, https://doi.org/10.5194/acp-21-13609-2021, 2021
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Ozone production at an urban site in Delhi is sensitive to volatile organic compound (VOC) concentrations, particularly those of the aromatic, monoterpene, and alkene VOC classes. The change in ozone production by varying atmospheric pollutants according to their sources, as defined in an emissions inventory, is investigated. The study suggests that reducing road transport emissions alone does not reduce reactive VOCs in the atmosphere enough to perturb an increase in ozone production.
Alexandre Kukui, Michel Chartier, Jinhe Wang, Hui Chen, Sébastien Dusanter, Stéphane Sauvage, Vincent Michoud, Nadine Locoge, Valérie Gros, Thierry Bourrianne, Karine Sellegri, and Jean-Marc Pichon
Atmos. Chem. Phys., 21, 13333–13351, https://doi.org/10.5194/acp-21-13333-2021, https://doi.org/10.5194/acp-21-13333-2021, 2021
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Sulfuric acid, H2SO4, plays a key role in formation of secondary atmospheric aerosol particles. It is generally accepted that the major atmospheric source of H2SO4 is the reaction of OH radicals with SO2. In this study, importance of an additional H2SO4 source via oxidation of SO2 by stabilized Criegee intermediates was estimated based on measurements at a remote site on Cape Corsica. It was found that the oxidation of SO2 by SCI may be an important source of H2SO4, especially during nighttime.
Jakob Boyd Pernov, Bjarne Jensen, Andreas Massling, Daniel Charles Thomas, and Henrik Skov
Atmos. Chem. Phys., 21, 13287–13309, https://doi.org/10.5194/acp-21-13287-2021, https://doi.org/10.5194/acp-21-13287-2021, 2021
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Atmospheric mercury species (GEM, GOM, PHg) are important constituents in the High Arctic due to their detrimental effects on human and ecosystem health. However, understanding their behavior in the High Arctic summer remains lacking. This research investigates the dynamics of mercury oxidation in the High Arctic summer. The cold, dry, sunlit free troposphere was associated with events of high GOM in the High Arctic summer, while individual events yielded unique origins.
Jiajue Chai, Jack E. Dibb, Bruce E. Anderson, Claire Bekker, Danielle E. Blum, Eric Heim, Carolyn E. Jordan, Emily E. Joyce, Jackson H. Kaspari, Hannah Munro, Wendell W. Walters, and Meredith G. Hastings
Atmos. Chem. Phys., 21, 13077–13098, https://doi.org/10.5194/acp-21-13077-2021, https://doi.org/10.5194/acp-21-13077-2021, 2021
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Nitrous acid (HONO) derived from wildfire emissions plays a key role in controlling atmospheric oxidation chemistry. However, the HONO budget remains poorly constrained. By combining the field-observed concentrations and novel isotopic composition (N and O) of HONO and nitrogen oxides (NOx), we quantitatively constrained the relative contribution of each pathway to secondary HONO production and the relative importance of major atmospheric oxidants (ozone versus peroxy) in aged wildfire smoke.
Paul S. Monks, A. R. Ravishankara, Erika von Schneidemesser, and Roberto Sommariva
Atmos. Chem. Phys., 21, 12909–12948, https://doi.org/10.5194/acp-21-12909-2021, https://doi.org/10.5194/acp-21-12909-2021, 2021
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Which published papers have transformed our understanding of the chemical processes in the troposphere and shaped the field of atmospheric chemistry? We explore how these papers have shaped the development of the field of atmospheric chemistry and identify the major landmarks in the field of atmospheric chemistry through the lens of those papers' impact on science, legislation and environmental events.
Bert Verreyken, Crist Amelynck, Niels Schoon, Jean-François Müller, Jérôme Brioude, Nicolas Kumps, Christian Hermans, Jean-Marc Metzger, Aurélie Colomb, and Trissevgeni Stavrakou
Atmos. Chem. Phys., 21, 12965–12988, https://doi.org/10.5194/acp-21-12965-2021, https://doi.org/10.5194/acp-21-12965-2021, 2021
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We present a 2-year dataset of trace gas concentrations, specifically an array of volatile organic compounds (VOCs), recorded at the Maïdo observatory, a remote tropical high-altitude site located on a small island in the southwest Indian Ocean. We found that island-scale transport is an important driver for the daily cycle of VOC concentrations. During the day, surface emissions from the island affect the atmospheric composition at Maïdo greatly, while at night this impact is strongly reduced.
Jean-Daniel Paris, Aurélie Riandet, Efstratios Bourtsoukidis, Marc Delmotte, Antoine Berchet, Jonathan Williams, Lisa Ernle, Ivan Tadic, Hartwig Harder, and Jos Lelieveld
Atmos. Chem. Phys., 21, 12443–12462, https://doi.org/10.5194/acp-21-12443-2021, https://doi.org/10.5194/acp-21-12443-2021, 2021
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We measured atmospheric methane and CO2 by ship in the Middle East. We probe the origin of methane with a combination of light alkane measurements and modeling. We find strong influence from nearby oil and gas production over the Arabian Gulf. Comparing our data to inventories indicates that inventories overestimate sources from the upstream gas industry but underestimate emissions from oil extraction and processing. The Red Sea was under a complex mixture of sources due to human activity.
Anoop S. Mahajan, Mriganka S. Biswas, Steffen Beirle, Thomas Wagner, Anja Schönhardt, Nuria Benavent, and Alfonso Saiz-Lopez
Atmos. Chem. Phys., 21, 11829–11842, https://doi.org/10.5194/acp-21-11829-2021, https://doi.org/10.5194/acp-21-11829-2021, 2021
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Iodine plays a vital role in oxidation chemistry over Antarctica, with past observations showing highly elevated levels of iodine oxide (IO) leading to severe depletion of boundary layer ozone. We present IO observations over three summers (2015–2017) at the Indian Antarctic bases of Bharati and Maitri. IO was observed during all campaigns with mixing ratios below 2 pptv, which is lower than the peak levels observed in West Antarctica, showing the differences in regional chemistry and emissions.
Dominique Rust, Ioannis Katharopoulos, Martin K. Vollmer, Stephan Henne, Simon O'Doherty, Daniel Say, Lukas Emmenegger, Renato Zenobi, and Stefan Reimann
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2021-633, https://doi.org/10.5194/acp-2021-633, 2021
Revised manuscript accepted for ACP
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Man-made halocarbons contribute to ozone-layer depletion and to global warming. We measured the atmospheric concentrations of halocarbons at the Beromünster-tower, modeled the Swiss emissions, and compared the results to the internationally reported Swiss emissions inventory. For most of the halocarbons we found good agreement, whereas one refrigerant might be overestimated in the inventory. In addition, we present first emission estimates of the newest type of halocarbons.
Chinmoy Sarkar, Gracie Wong, Anne Mielnik, Sanjeevi Nagalingam, Nicole Jenna Gross, Alex B. Guenther, Taehyoung Lee, Taehyun Park, Jihee Ban, Seokwon Kang, Jin-Soo Park, Joonyoung Ahn, Danbi Kim, Hyunjae Kim, Jinsoo Choi, Beom-Keun Seo, Jong-Ho Kim, Jeong-Ho Kim, Soo Bog Park, and Saewung Kim
Atmos. Chem. Phys., 21, 11505–11518, https://doi.org/10.5194/acp-21-11505-2021, https://doi.org/10.5194/acp-21-11505-2021, 2021
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We present experimental proofs illustrating the emission of an unexplored volatile organic compound, tentatively assigned as ketene, in an industrial facility in South Korea. The emission of such a compound has rarely been reported, but our experimental data show that the emission rate is substantial. It potentially has tremendous implications for regional air quality and public health, as it is highly reactive and toxic at the same time.
Chaoyang Xue, Can Ye, Jörg Kleffmann, Wenjin Zhang, Xiaowei He, Pengfei Liu, Chenglong Zhang, Xiaoxi Zhao, Chengtang Liu, Zhuobiao Ma, Junfeng Liu, Jinhe Wang, Keding Lu, Valéry Catoire, Abdelwahid Mellouki, and Yujing Mu
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2021-531, https://doi.org/10.5194/acp-2021-531, 2021
Revised manuscript accepted for ACP
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Nitrous acid (HONO) and related parameters were measured at the foot and the summit of Mt. Tai in the summer of 2018. Based on measurements at the foot station, we utilized a box model to explore the HONO budget and radical chemistry. Nitrate radical (NO3) chemistry was highlighted. Roles of HONO in the oxidizing capacity of the lower and the upper boundary layers were also compared.
Xiaolong Fan, Jing Cai, Chao Yan, Jian Zhao, Yishuo Guo, Chang Li, Kaspar R. Dällenbach, Feixue Zheng, Zhuohui Lin, Biwu Chu, Yonghong Wang, Lubna Dada, Qiaozhi Zha, Wei Du, Jenni Kontkanen, Theo Kurtén, Siddhart Iyer, Joni T. Kujansuu, Tuukka Petäjä, Douglas R. Worsnop, Veli-Matti Kerminen, Yongchun Liu, Federico Bianchi, Yee Jun Tham, Lei Yao, and Markku Kulmala
Atmos. Chem. Phys., 21, 11437–11452, https://doi.org/10.5194/acp-21-11437-2021, https://doi.org/10.5194/acp-21-11437-2021, 2021
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We observed significant concentrations of gaseous HBr and HCl throughout the winter and springtime in urban Beijing, China. Our results indicate that gaseous HCl and HBr are most likely originated from anthropogenic emissions such as burning activities, and the gas–aerosol partitioning may play a crucial role in contributing to the gaseous HCl and HBr. These observations suggest that there is an important recycling pathway of halogen species in inland megacities.
Yenny Gonzalez, Róisín Commane, Ethan Manninen, Bruce C. Daube, Luke D. Schiferl, J. Barry McManus, Kathryn McKain, Eric J. Hintsa, James W. Elkins, Stephen A. Montzka, Colm Sweeney, Fred Moore, Jose L. Jimenez, Pedro Campuzano Jost, Thomas B. Ryerson, Ilann Bourgeois, Jeff Peischl, Chelsea R. Thompson, Eric Ray, Paul O. Wennberg, John Crounse, Michelle Kim, Hannah M. Allen, Paul A. Newman, Britton B. Stephens, Eric C. Apel, Rebecca S. Hornbrook, Benjamin A. Nault, Eric Morgan, and Steven C. Wofsy
Atmos. Chem. Phys., 21, 11113–11132, https://doi.org/10.5194/acp-21-11113-2021, https://doi.org/10.5194/acp-21-11113-2021, 2021
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Vertical profiles of N2O and a variety of chemical species and aerosols were collected nearly from pole to pole over the oceans during the NASA Atmospheric Tomography mission. We observed that tropospheric N2O variability is strongly driven by the influence of stratospheric air depleted in N2O, especially at middle and high latitudes. We also traced the origins of biomass burning and industrial emissions and investigated their impact on the variability of tropospheric N2O.
Geoffrey C. Toon, Jean-Francois L. Blavier, Keeyoon Sung, and Katelyn Yu
Atmos. Chem. Phys., 21, 10727–10743, https://doi.org/10.5194/acp-21-10727-2021, https://doi.org/10.5194/acp-21-10727-2021, 2021
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We report measurements of atmospheric propane (C3H8) from analysis of ground-based infra-red solar absorption spectra measured from various sites by the Jet Propulsion Laboratory (JPL) MkIV interferometer. These measurements suggest that exploitation of natural gas fields is a major and growing source of propane in the USA. Also, there seem to be propane sources in large cities such as Los Angeles, possibly related to use of liquefied petroleum gas (LPG).
Daniel P. Phillips, Frances E. Hopkins, Thomas G. Bell, Peter S. Liss, Philip D. Nightingale, Claire E. Reeves, Charel Wohl, and Mingxi Yang
Atmos. Chem. Phys., 21, 10111–10132, https://doi.org/10.5194/acp-21-10111-2021, https://doi.org/10.5194/acp-21-10111-2021, 2021
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We present the first measurements of the rate of transfer (flux) of three gases between the atmosphere and the ocean, using a direct flux measurement technique, at a coastal site. We show greater atmospheric loss of acetone and acetaldehyde into the ocean than estimated by global models for the open water; importantly, the acetaldehyde transfer direction is opposite to the model estimates. Measured dimethylsulfide fluxes agreed with a recent model. Isoprene fluxes were too weak to be measured.
Hua Fang, Xiaoqing Huang, Yanli Zhang, Chenglei Pei, Zuzhao Huang, Yujun Wang, Yanning Chen, Jianhong Yan, Jianqiang Zeng, Shaoxuan Xiao, Shilu Luo, Sheng Li, Jun Wang, Ming Zhu, Xuewei Fu, Zhenfeng Wu, Runqi Zhang, Wei Song, Guohua Zhang, Weiwei Hu, Mingjin Tang, Xiang Ding, Xinhui Bi, and Xinming Wang
Atmos. Chem. Phys., 21, 10005–10013, https://doi.org/10.5194/acp-21-10005-2021, https://doi.org/10.5194/acp-21-10005-2021, 2021
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A tunnel test was initiated to measure the vehicular IVOC emissions under real-world driving conditions. Higher SOA formation estimated from vehicular IVOCs compared to those from traditional VOCs emphasized the greater importance of IVOCs in modulating urban SOA. The results also revealed that non-road diesel-fueled engines greatly contributed to IVOCs in China.
David D. Parrish, Richard G. Derwent, Steven T. Turnock, Fiona M. O'Connor, Johannes Staehelin, Susanne E. Bauer, Makoto Deushi, Naga Oshima, Kostas Tsigaridis, Tongwen Wu, and Jie Zhang
Atmos. Chem. Phys., 21, 9669–9679, https://doi.org/10.5194/acp-21-9669-2021, https://doi.org/10.5194/acp-21-9669-2021, 2021
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The few ozone measurements made before the 1980s indicate that industrial development increased ozone concentrations by a factor of ~ 2 at northern midlatitudes, which are now larger than at southern midlatitudes. This difference was much smaller, and likely reversed, in the pre-industrial atmosphere. Earth system models find similar increases, but not higher pre-industrial ozone in the south. This disagreement may indicate that modeled natural ozone sources and/or deposition loss are inadequate.
Wei Huang, Haiyan Li, Nina Sarnela, Liine Heikkinen, Yee Jun Tham, Jyri Mikkilä, Steven J. Thomas, Neil M. Donahue, Markku Kulmala, and Federico Bianchi
Atmos. Chem. Phys., 21, 8961–8977, https://doi.org/10.5194/acp-21-8961-2021, https://doi.org/10.5194/acp-21-8961-2021, 2021
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We show full characterization of gaseous organic compounds in a boreal forest. Molecular composition and volatility of gaseous organic compounds with different oxidation extents (from volatile organic compounds to highly oxygenated organic molecules) were investigated and discussed. We provide a more comprehensive understanding of atmospheric organic compounds in this boreal forest and new insights into interpreting ambient measurements or testing and improving parameterizations in models.
Elizabeth B. Wiggins, Arlyn Andrews, Colm Sweeney, John B. Miller, Charles E. Miller, Sander Veraverbeke, Roisin Commane, Steven Wofsy, John M. Henderson, and James T. Randerson
Atmos. Chem. Phys., 21, 8557–8574, https://doi.org/10.5194/acp-21-8557-2021, https://doi.org/10.5194/acp-21-8557-2021, 2021
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We analyzed high-resolution trace gas measurements collected from a tower in Alaska during a very active fire season to improve our understanding of trace gas emissions from boreal forest fires. Our results suggest previous studies may have underestimated emissions from smoldering combustion in boreal forest fires.
Chenshuo Ye, Bin Yuan, Yi Lin, Zelong Wang, Weiwei Hu, Tiange Li, Wei Chen, Caihong Wu, Chaomin Wang, Shan Huang, Jipeng Qi, Baolin Wang, Chen Wang, Wei Song, Xinming Wang, E Zheng, Jordan E. Krechmer, Penglin Ye, Zhanyi Zhang, Xuemei Wang, Douglas R. Worsnop, and Min Shao
Atmos. Chem. Phys., 21, 8455–8478, https://doi.org/10.5194/acp-21-8455-2021, https://doi.org/10.5194/acp-21-8455-2021, 2021
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We performed measurements of gaseous and particulate organic compounds using a state-of-the-art online mass spectrometer in urban air. Using the dataset, we provide a holistic chemical characterization of oxygenated organic compounds in the polluted urban atmosphere, which can serve as a reference for the future field measurements of organic compounds in cities.
Astrid Müller, Hiroshi Tanimoto, Takafumi Sugita, Toshinobu Machida, Shin-ichiro Nakaoka, Prabir K. Patra, Joshua Laughner, and David Crisp
Atmos. Chem. Phys., 21, 8255–8271, https://doi.org/10.5194/acp-21-8255-2021, https://doi.org/10.5194/acp-21-8255-2021, 2021
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Over oceans, high uncertainties in satellite CO2 retrievals exist due to limited reference data. We combine commercial ship and aircraft observations and, with the aid of model calculations, obtain column-averaged mixing ratios of CO2 (XCO2) data over the Pacific Ocean. This new dataset has great potential as a robust reference for XCO2 measured from space and can help to better understand changes in the carbon cycle in response to climate change using satellite observations.
Ivan Tadic, Clara M. Nussbaumer, Birger Bohn, Hartwig Harder, Daniel Marno, Monica Martinez, Florian Obersteiner, Uwe Parchatka, Andrea Pozzer, Roland Rohloff, Martin Zöger, Jos Lelieveld, and Horst Fischer
Atmos. Chem. Phys., 21, 8195–8211, https://doi.org/10.5194/acp-21-8195-2021, https://doi.org/10.5194/acp-21-8195-2021, 2021
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Although mechanisms of tropospheric ozone (O3) formation are well understood, studies reporting on ozone formation derived from field measurements are challenging and remain sparse in number. We use airborne measurements to quantify nitric oxide (NO) and O3 distributions in the upper troposphere over the Atlantic Ocean and western Africa and compare our measurements to model simulations. Our results show that NO and ozone formation are greatest over the tropical areas of western Africa.
Heidi Hellén, Arnaud P. Praplan, Toni Tykkä, Aku Helin, Simon Schallhart, Piia P. Schiestl-Aalto, Jaana Bäck, and Hannele Hakola
Atmos. Chem. Phys., 21, 8045–8066, https://doi.org/10.5194/acp-21-8045-2021, https://doi.org/10.5194/acp-21-8045-2021, 2021
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Even though terpene emissions of boreal needle trees have been studied quite intensively, there is less knowledge of the emissions of broadleaved deciduous trees and emissions of larger terpenes and oxygenated volatile organic compounds. Here we studied downy birch (Betula pubescens) emissions, and especially sesquiterpene and oxygenated sesquiterpene emissions were found to be high. These emissions may have significant effects on secondary organic aerosol formation in boreal areas.
Kai Song, Song Guo, Haichao Wang, Ying Yu, Hui Wang, Rongzhi Tang, Shiyong Xia, Yuanzheng Gong, Zichao Wan, Daqi Lv, Rui Tan, Wenfei Zhu, Ruizhe Shen, Xin Li, Xuena Yu, Shiyi Chen, Liming Zeng, and Xiaofeng Huang
Atmos. Chem. Phys., 21, 7917–7932, https://doi.org/10.5194/acp-21-7917-2021, https://doi.org/10.5194/acp-21-7917-2021, 2021
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Nitrated phenols (NPs) are crucial components of brown carbon. To comprehend the constitutes and sources of NPs in winter of Beijing, their concentrations were measured by a CI-LToF-MS. The secondary formation process was simulated by a box model. NPs were mainly influenced by primary emissions and regional transport. Primary emitted phenol rather than benzene oxidation was crucial in the heavy pollution episode in Beijing. This provides more insight into pollution control strategies of NPs.
Clara M. Nussbaumer, Ivan Tadic, Dirk Dienhart, Nijing Wang, Achim Edtbauer, Lisa Ernle, Jonathan Williams, Florian Obersteiner, Isidoro Gutiérrez-Álvarez, Hartwig Harder, Jos Lelieveld, and Horst Fischer
Atmos. Chem. Phys., 21, 7933–7945, https://doi.org/10.5194/acp-21-7933-2021, https://doi.org/10.5194/acp-21-7933-2021, 2021
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Lightning over continental and coastal areas is frequent and accompanied by deep convection, while lightning over marine areas and particularly in tropical cyclones is rare. This research presents in situ observations of the tropical storm Florence 2018 near Cabo Verde. We show the absence of lightning in the tropical storm despite the occurrence of deep convective processes by atmospheric trace gas measurements of O3, NO, CO, H2O2, DMS and CH2I.
Nils Friedrich, Philipp Eger, Justin Shenolikar, Nicolas Sobanski, Jan Schuladen, Dirk Dienhart, Bettina Hottmann, Ivan Tadic, Horst Fischer, Monica Martinez, Roland Rohloff, Sebastian Tauer, Hartwig Harder, Eva Y. Pfannerstill, Nijing Wang, Jonathan Williams, James Brooks, Frank Drewnick, Hang Su, Guo Li, Yafang Cheng, Jos Lelieveld, and John N. Crowley
Atmos. Chem. Phys., 21, 7473–7498, https://doi.org/10.5194/acp-21-7473-2021, https://doi.org/10.5194/acp-21-7473-2021, 2021
Short summary
Short summary
This paper uses NOx and NOz measurements from the 2017 AQABA ship campaign in the Mediterranean Sea and around the Arabian Peninsula to examine the influence e.g. of emissions from shipping and oil and gas production. Night-time losses of NOx dominated in the Arabian Gulf and in the Red Sea, whereas daytime losses were more important in the Mediterranean Sea. Nitric acid and organic nitrates were the most prevalent components of NOz.
Qingqing Yin, Qianli Ma, Weili Lin, Xiaobin Xu, and Jie Yao
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2021-227, https://doi.org/10.5194/acp-2021-227, 2021
Revised manuscript accepted for ACP
Short summary
Short summary
China has been experiencing rapid changes in emissions of air pollutants in recent decades. NOX and SO2 measurements from 2006 to 2016 at the Lin'an WMO GAW station were used to characterize the seasonal and diurnal variations and study the long-term trends. This study reaffirms China's success in controlling both NOX and SO2 in the YRD but indicate at the same time a necessity to strengthen the NOX emission control.
Max Thomas, Johannes C. Laube, Jan Kaiser, Samuel Allin, Patricia Martinerie, Robert Mulvaney, Anna Ridley, Thomas Röckmann, William T. Sturges, and Emmanuel Witrant
Atmos. Chem. Phys., 21, 6857–6873, https://doi.org/10.5194/acp-21-6857-2021, https://doi.org/10.5194/acp-21-6857-2021, 2021
Short summary
Short summary
CFC gases are destroying the Earth's life-protecting ozone layer. We improve understanding of CFC destruction by measuring the isotopic fingerprint of the carbon in the three most abundant CFCs. These are the first such measurements in the main region where CFCs are destroyed – the stratosphere. We reconstruct the atmospheric isotope histories of these CFCs back to the 1950s by measuring air extracted from deep snow and using a model. The model and the measurements are generally consistent.
Cited articles
Abbatt, J. P. D., Thomas, J. L., Abrahamsson, K., Boxe, C., Granfors, A.,
Jones, A. E., King, M. D., Saiz-Lopez, A., Shepson, P. B., Sodeau, J.,
Toohey, D. W., Toubin, C., von Glasow, R., Wren, S. N., and Yang, X.:
Halogen activation via interactions with environmental ice and snow in the
polar lower troposphere and other regions, Atmos. Chem. Phys., 12,
6237–6271, https://doi.org/10.5194/acp-12-6237-2012, 2012.
Anderson, G. P., Clough, S. A., Kneizys, F. X., Chetwynd, J. H., and
Shettle, E. P.: AFGL atmospheric constituent profiles (0–120 km), Tech.
rep., AFGL-TR-86-0110, Environemental Research papers No. 954, 1986.
Anderson, P. S. and Neff, W. D.: Boundary layer physics over snow and ice,
Atmos. Chem. Phys., 8, 3563–3582, https://doi.org/10.5194/acp-8-3563-2008,
2008.
Ariya, P. A., Amyot, M., Dastoor, A., Deeds, D., Feinberg, A., Kos, G.,
Poulain, A., Ryjkov, A., Semeniuk, K., Subir, M., and Toyota, K.: Mercury
Physicochemical and Biogeochemical Transformation in the Atmosphere and at
Atmospheric Interfaces: A Review and Future Directions, Chem. Rev., 115,
3760–3802, https://doi.org/10.1021/cr500667e, 2015.
Asmi, E., Neitola, K., Teinilä, K., Rodriguez, E., Virkkula, A.,
Backman, J., Bloss, M., Jokela, J., Lihavainen, H., de Leeuw, G., Paatero,
J., Aaltonen, V., Mei, M., Gambarte, G., Copes, G., Albertini, M., Pérez
Fogwill, G., Ferrara, J., Barlasina, M. E., and Sánchez, R.: Primary
sources control the variability of aerosol optical properties in the
Antarctic Peninsula, Tellus B, 70, 1414571, https://doi.org/10.1080/16000889.2017.1414571, 2018.
Atkinson, R., Baulch, D. L., Cox, R. A., Crowley, J. N., Hampson, R. F.,
Hynes, R. G., Jenkin, M. E., Rossi, M. J., and Troe, J.: Evaluated kinetic
and photochemical data for atmospheric chemistry: Volume III – gas phase
reactions of inorganic halogens, Atmos. Chem. Phys., 7, 981–1191,
https://doi.org/10.5194/acp-7-981-2007, 2007.
Barrie, L. A., Bottenheim, J. W., Schnell, R. C., Crutzen, P. J., and
Rasmussen, R. A.: Ozone destruction and photochemical reactions at polar
sunrise in the lower Arctic atmosphere, Nature, 334, 138–141,
https://doi.org/10.1038/334138a0, 1988.
Bloss, W. J., Lee, J. D., Heard, D. E., Salmon, R. A., Bauguitte, S. J.-B.,
Roscoe, H. K., and Jones, A. E.: Observations of OH and HO2 radicals in
coastal Antarctica, Atmos. Chem. Phys., 7, 4171–4185,
https://doi.org/10.5194/acp-7-4171-2007, 2007.
Bobrowski, N., Hönninger, G., Galle, B., and Platt, U.: Detection of
bromine monoxide in a volcanic plume, Nature, 423, 273–276,
https://doi.org/10.1038/nature01625, 2003.
Bogumil, K., Orphal, J., Homann, T., Voigt, S., Spietz, P., Fleischmann, O.
C., Vogel, A., Hartmann, M., Bovensmann, H.,
Frerik, J., and Burrows, J. P.: Measurements of molecular absorption spectra
with the SCIAMACHY Pre-Flight Model: Instrument characterization and
reference spectra for atmospheric remote sensing in the 230–2380 nm region,
J. Photoch. Photobio. A, 157, 167–184, https://doi.org/10.1016/S1010-6030(03)00062-5, 2003.
Bottenheim, J. W., Gallant, A. G., and Brice, K. A.: Measurements
of NOy species and O3 at 82∘ N latitude, Geophys. Res. Lett., 13, 113–116, https://doi.org/10.1029/GL013i002p00113, 1986.
Buys, Z., Brough, N., Huey, L. G., Tanner, D. J., von Glasow, R., and Jones,
A. E.: High temporal resolution Br2, BrCl and BrO observations in
coastal Antarctica, Atmos. Chem. Phys., 13, 1329–1343,
https://doi.org/10.5194/acp-13-1329-2013, 2013.
Carpenter, L. J., Reimann, S., Burkholder, J. B., Clerbaux, C.,
Hall, B. D., Hossaini, R., Laube, J. C., and Yvon-Lewis, S. A.: Ozone-Depleting
Substances (ODSs) and Other Gases of Interest to the Montreal Protocol,
Chapter 1 in Scientific Assessment of Ozone Depletion: 2014, Global Ozone
Research and Monitoring Project – Report No. 55, World Meteorological
Organization, Geneva, Switzerland, 2014.
Chance, K. and Spurr, R. J. D.: Ring effect studies; Rayleigh scattering,
including molecular parameters for rotational Raman scattering and the
Fraunhofer spectrum, Appl. Opt., 36, 5224–5230, https://doi.org/10.1364/AO.36.005224,
1997.
Clémer, K., Van Roozendael, M., Fayt, C., Hendrick, F., Hermans, C.,
Pinardi, G., Spurr, R., Wang, P., and De Mazière, M.: Multiple
wavelength retrieval of tropospheric aerosol optical properties from MAXDOAS
measurements in Beijing, Atmos. Meas. Tech., 3, 863–878,
https://doi.org/10.5194/amt-3-863-2010, 2010.
Córdoba-Jabonero, C., Andrey-Andrés, J., Gómez, L., Adame, J.A.,
Sorribas, M., Navarro-Comas, M., Puentedura, O., Cuevas, E., and Gil-Ojeda,
M.: Vertical mass impact and features of Saharan dust intrusions derived
from ground-based remote sensing in synergy with airborne in-situ
measurements, Atmos. Environ., 142, 420–429,
https://doi.org/10.1016/j.atmosenv.2016.08.003, 2016.
Custard, K. D., Raso, A. R. W., Shepson, P. B., Staebler, R. M., and Pratt,
K. A.: Production and Release of Molecular Bromine and Chlorine from the
Arctic Coastal Snowpack, ACS Earth and Space Chemistry, 1, 142–151, https://doi.org/10.1021/acsearthspacechem.7b00014, 2017.
De Mazière, M., Thompson, A. M., Kurylo, M. J., Wild, J., Bernhard, G.,
Blumenstock, T., Hannigan, J., Lambert, J.-C., Leblanc, T., McGee, T. J.,
Nedoluha, G., Petropavlovskikh, I., Seckmeyer, G., Simon, P. C.,
Steinbrecht, W., and Strahan, S.: The Network for the Detection of
Atmospheric Composition Change (NDACC): History, status and perspectives,
Atmos. Chem. Phys., 18, 4935–4964, https://doi.org/10.5194/acp-18-4935-2018,
2018.
Ehrlich, A.: The Impact of Ice Crystals on Radiative Forcing and
Remote Sensing of Arctic Boundary-Layer Mixed-Phase Clouds, PhD thesis,
Johannes Gutenberg University Mainz, Germany, available at:
https://d-nb.info/994470355/34 (last access: 1 March 2018), 2009.
Fan, S.-M. and Jacob, D. J.: Surface ozone depletion in Arctic spring
sustained by bromine reactions on aerosols, Nature, 359, 522–524,
https://doi.org/10.1038/359522a0, 1992.
Farman, J. C., Gardiner, B. G., and Shanklin, J. D.: Large losses of total
ozone in Antarctica reveal seasonal ClOx/NOx interaction, Nature, 315,
207–210, https://doi.org/10.1038/315207a0, 1985.
Fleischmann, O. C., Hartmann, M., Burrows, J. P., and Orphal, J.: New
ultraviolet absorption cross-sections of BrO at atmospheric temperatures
measured by time-windowing Fourier transform spectroscopy, J. Photoch.
Photobio. A, 168, 117–132, https://doi.org/10.1016/j.jphotochem.2004.03.026, 2004.
Frey, M. M., Roscoe, H. K., Kukui, A., Savarino, J., France, J. L., King, M.
D., Legrand, M., and Preunkert, S.: Atmospheric nitrogen oxides (NO and
NO2) at Dome C, East Antarctica, during the OPALE campaign, Atmos.
Chem. Phys., 15, 7859–7875, https://doi.org/10.5194/acp-15-7859-2015, 2015.
Frieß, U., Hollwedel, J., König-Langlo, G., Wagner, T., and Platt,
U.: Dynamics and chemistry of tropospheric bromine explosion events in the
Antarctic coastal region, J. Geophys. Res., 109, D06305,
https://doi.org/10.1029/2003JD004133, 2004.
Frieß U., Sihler H., Sander R., Pöhler D., Yilmaz S., and Platt U.:
The vertical distribution of BrO and aerosols in the Arctic: Measurements by
active and passive differential optical absorption spectroscopy, J. Geophys.
Res., 116, D00R04, https://doi.org/10.1029/2011JD015938, 2011.
Frieß, U., Klein Baltink, H., Beirle, S., Clémer, K., Hendrick, F.,
Henzing, B., Irie, H., de Leeuw, G., Li, A., Moerman, M. M., van Roozendael,
M., Shaiganfar, R., Wagner, T., Wang, Y., Xie, P., Yilmaz, S., and Zieger,
P.: Intercomparison of aerosol extinction profiles retrieved from MAX-DOAS
measurements, Atmos. Meas. Tech., 9, 3205–3222,
https://doi.org/10.5194/amt-9-3205-2016, 2016.
Gil, M., Puentedura, O., Yela, M., Parrondo, C., Jadhav, D. B., and
Thorkelsson, B.: OClO, NO2 and O3 total column observations over Iceland
during the winter 1993/94, Geophys. Res. Lett., 23, 3337–3340, https://doi.org/10.1029/96GL03102, 1996.
Gil, M., Yela, M., Gunn, L. N., Richter, A., Alonso, I., Chipperfield, M.
P., Cuevas, E., Iglesias, J., Navarro, M., Puentedura, O., and
Rodríguez, S.: NO2 climatology in the northern subtropical region:
diurnal, seasonal and interannual variability, Atmos. Chem. Phys., 8,
1635–1648, https://doi.org/10.5194/acp-8-1635-2008, 2008.
Grilli, R., Legrand, M., Kukui, A., Mejean, G., Preunkert, S., and Romanini, D.: First investigations of IO, BrO, and NO2 summer
atmospheric levels at a coastal East Antarctic site using modelocked cavity enhanced absorption spectroscopy, Geophys. Res. Lett., 40, 791–796, 2013.
Giordano, M. R., Kalnajs, L. E., Avery, A., Goetz, J. D., Davis, S. M., and
DeCarlo, P. F.: A missing source of aerosols in Antarctica – beyond
long-range transport, phytoplankton, and photochemistry, Atmos. Chem. Phys.,
17, 1–20, https://doi.org/10.5194/acp-17-1-2017, 2017.
Gómez-Martín, L., Prados-Roman, C., Puentedura, O.,
Córdoba-Jabonero, C, Navarro-Comas, M., Ochoa, H., and Yela, Y.: Aerosol
extinction profiles retrieved from MAX-DOAS measurements at two Antarctic
stations, in preparation, 2018.
Halfacre, J. W., Knepp, T. N., Shepson, P. B., Thompson, C. R., Pratt, K.
A., Li, B., Peterson, P. K., Walsh, S. J., Simpson, W. R., Matrai, P. A.,
Bottenheim, J. W., Netcheva, S., Perovich, D. K., and Richter, A.: Temporal
and spatial characteristics of ozone depletion events from measurements in
the Arctic, Atmos. Chem. Phys., 14, 4875–4894,
https://doi.org/10.5194/acp-14-4875-2014, 2014.
Hausmann, M. and Platt, U.: Spectroscopic measurement of bromine oxide and
ozone in the high Arctic during Polar
Sunrise Experiment 1992, J. Geophys. Res., 99, 25399, https://doi.org/10.1029/94JD01314,
1994.
Helmig, D., Oltmans, S. J., Carlson, D., Lamarque, J. F., Jones, A.,
Labuschagne, C., Anlauf, K., and Hayden, K.: A review of surface ozone in
the polar regions, Atmos. Environ., 41, 5138–5161,
https://doi.org/10.1016/j.atmosenv.2006.09.053, 2007.
Hendrick, F., Barret, B., Van Roozendael, M., Boesch, H., Butz, A., De
Mazière, M., Goutail, F., Hermans, C., Lambert, J.-C., Pfeilsticker, K.,
and Pommereau, J.-P.: Retrieval of nitrogen dioxide stratospheric profiles
from ground-based zenith-sky UV-visible observations: validation of the
technique through correlative comparisons, Atmos. Chem. Phys., 4, 2091–2106,
https://doi.org/10.5194/acp-4-2091-2004, 2004.
Hendrick, F., Müller, J.-F., Clémer, K., Wang, P., De Mazière, M., Fayt, C., Gielen, C., Hermans, C., Ma, J. Z., Pinardi, G.,
Stavrakou, T., Vlemmix, T., and Van Roozendael, M.: Four years of ground-based MAX-DOAS observations of HONO and NO2 in the Beijing area,
Atmos. Chem. Phys., 14, 765–781, https://doi.org/10.5194/acp-14-765-2014, 2014.
Hönninger, G. and Platt, U.: Observations of BrO and its vertical
distribution during surface ozone depletion at Alert, Atmos. Environ., 36,
2481–2489, 2002.
Hönninger, G., von Friedeburg, C., and Platt, U.: Multi axis
differential optical absorption spectroscopy (MAX-DOAS), Atmos. Chem. Phys.,
4, 231–254, https://doi.org/10.5194/acp-4-231-2004, 2004.
Hüneke, T., Aderhold, O.-A., Bounin, J., Dorf, M., Gentry, E.,
Grossmann, K., Grooß, J.-U., Hoor, P., Jöckel, P., Kenntner, M.,
Knapp, M., Knecht, M., Lörks, D., Ludmann, S., Matthes, S., Raecke, R.,
Reichert, M., Weimar, J., Werner, B., Zahn, A., Ziereis, H., and
Pfeilsticker, K.: The novel HALO mini-DOAS instrument: inferring trace gas
concentrations from airborne UV/visible limb spectroscopy under all skies
using the scaling method, Atmos. Meas. Tech., 10, 4209–4234,
https://doi.org/10.5194/amt-10-4209-2017, 2017.
Jones, A. E., Anderson, P. S., Begoin, M., Brough, N., Hutterli, M. A.,
Marshall, G. J., Richter, A., Roscoe, H. K., and Wolff, E. W.: BrO,
blizzards, and drivers of polar tropospheric ozone depletion events, Atmos.
Chem. Phys., 9, 4639–4652, https://doi.org/10.5194/acp-9-4639-2009, 2009.
Jones, A. E., Wolff, E. W., Brough, N., Bauguitte, S. J.-B., Weller, R.,
Yela, M., Navarro-Comas, M., Ochoa, H. A., and Theys, N.: The spatial scale
of ozone depletion events derived from an autonomous surface ozone network
in coastal Antarctica, Atmos. Chem. Phys., 13, 1457–1467,
https://doi.org/10.5194/acp-13-1457-2013, 2013.
King, J. C., Argentini, S. A., and Anderson, P. S.: Contrast between the
summertime surface energy balance and boundary
layer structure at Dome C and Halley stations, Antarctica, J. Geophys. Res.,
111, D02105, https://doi.org/10.1029/2005JD006130, 2006.
Kromminga, H., Orphal, J., Spietz, P., Voigt, S., and Burrows, J. P.: New
measurements of OClO absorption cross sections in the 325-435 nm and their
temperature dependence between 213-293 K, J. Photoch. Photobio. A.,
157, 149–160, https://doi.org/10.1016/S1010-6030(03)00071-6, 2003.
Le Bras, G. and Platt, U.: A possible mechanism for combined chlorine and
bromine catalyzed destruction of tropospheric ozone in the Arctic, Geophys.
Res. Lett., 22, 599–602, https://doi.org/10.1029/94GL03334, 1995.
Legrand, M., Preunkert, S., Savarino, J., Frey, M. M., Kukui, A., Helmig,
D., Jourdain, B., Jones, A. E., Weller, R., Brough, N., and Gallée, H.:
Inter-annual variability of surface ozone at coastal (Dumont d'Urville,
2004–2014) and inland (Concordia, 2007–2014) sites in East Antarctica,
Atmos. Chem. Phys., 16, 8053–8069, https://doi.org/10.5194/acp-16-8053-2016,
2016.
Liao, J., Sihler, H., Huey, L. G., Neuman, J. A., Tanner, D. J., Friess, U.,
Platt, U., Flocke, F. M., Orlando, J. J., Shepson, P.
B., Beine, H. J., Weinheimer, A. J., Sjostedt, S. J., Nowak, J. B., Knapp,
D. J., Staebler, R. M., Zheng, W., Sander, R., Hall,
S. R., and Ullmann, K.: A comparison of Arctic BrO measurements by chemical
ionization mass spectrometry and long pathdifferential optical absorption
spectroscopy, J. Geophys. Res., 116, D00R02, https://doi.org/10.1029/2010JD014788, 2011.
Liao, J., Huey, L., Tanner, D., Flocke, F., Orlando, J., Neuman, J., Nowak,
J., Weinheimer, A., Hall, S., Smith, J., Fried, A.,
Staebler, R., Wang, Y., Koo, J.-H., Cantrell, C., Weibring, P., Walega, J.,
Knapp, D., Shepson, P., and Stephens, C.: Observations of inorganic bromine
(HOBr, BrO, and Br2) speciation at Barrow, Alaska, in spring 2009, J.
Geophys. Res., 117, D00R16, https://doi.org/10.1029/2011JD016641, 2012.
Meller, R. and Moortgat, G. K.: Temperature dependence of the
absorption cross sections of formaldehyde between 223 and 323K in the
wavelength range 225–375 nm, J. Geophys. Res., 105, 7089–7101, https://doi.org/10.1029/1999JD901074, 2000.
Minikin, A., M. Legrand, J. Hall, D. Wagenbach, C. Kleefeld, E. Wolff, E. C.
Pasteur, and Ducroz, F.: Sulfur-containing
species (sulfate and methanesulfonate) in coastal Antarctic aerosol and
precipitation, J. Geophys. Res., 103, 10975–10990,
https://doi.org/10.1029/98JD00249, 1998.
Molina, M. J. and Rowland, F. S.: Stratospheric sink for
chlorofluoromethanes: chlorine atom catalysed destruction of ozone, Nature,
249, 810–812, https://doi.org/10.1038/249810a0, 1974.
Nygård, T., Valkonen, T., and Vihma, T.: Antarctic Low-Tropopause
Humidity Inversions: 10-yr Climatology, J. Climate, 26, 5205–5219,
https://doi.org/10.1175/JCLI-D-12-00446.1, 2013.
Oltmans, S. J., Schnell, R. C., Sheridan, P. J., Peterson, R. E., Li, S.-M.,
Winchester, J. W., Tans, P. P., Sturges, W. T., Kahl, J. D., and Barrie, L.
A.: Seasonal surface ozone and filterable bromine relationship in the high
Arctic, Atmos. Environ., 23, 2431–2441, 1989.
Peters, E., Pinardi, G., Seyler, A., Richter, A., Wittrock, F., Bösch,
T., Van Roozendael, M., Hendrick, F., Drosoglou, T., Bais, A. F., Kanaya,
Y., Zhao, X., Strong, K., Lampel, J., Volkamer, R., Koenig, T., Ortega, I.,
Puentedura, O., Navarro-Comas, M., Gómez, L., Yela González, M.,
Piters, A., Remmers, J., Wang, Y., Wagner, T., Wang, S., Saiz-Lopez, A.,
García-Nieto, D., Cuevas, C. A., Benavent, N., Querel, R., Johnston,
P., Postylyakov, O., Borovski, A., Elokhov, A., Bruchkouski, I., Liu, H.,
Liu, C., Hong, Q., Rivera, C., Grutter, M., Stremme, W., Khokhar, M. F.,
Khayyam, J., and Burrows, J. P.: Investigating differences in DOAS retrieval
codes using MAD-CAT campaign data, Atmos. Meas. Tech., 10, 955–978,
https://doi.org/10.5194/amt-10-955-2017, 2017.
Peterson, P. K., Simpson, W. R., Pratt, K. A., Shepson, P. B., Frieß,
U., Zielcke, J., Platt, U., Walsh, S. J., and Nghiem, S. V.: Dependence of
the vertical distribution of bromine monoxide in the lower troposphere on
meteorological factors such as wind speed and stability, Atmos. Chem. Phys.,
15, 2119–2137, https://doi.org/10.5194/acp-15-2119-2015, 2015.
Peterson, P. K., Pöhler, D., Sihler, H., Zielcke, J., General, S.,
Frieß, U., Platt, U., Simpson, W. R., Nghiem, S. V., Shepson, P. B.,
Stirm, B. H., Dhaniyala, S., Wagner, T., Caulton, D. R., Fuentes, J. D., and
Pratt, K. A.: Observations of bromine monoxide transport in the Arctic
sustained on aerosol particles, Atmos. Chem. Phys., 17, 7567–7579,
https://doi.org/10.5194/acp-17-7567-2017, 2017.
Platt, U. and Hönninger, G.: The role of halogen species in the
troposphere, Chemosphere, 52, 325–338, https://doi.org/10.1016/S0045-6535(03)00216-9,
2003.
Platt, U. and Janssen, C.: Observation and role of the free radicals NO3, ClO, BrO and IO in the troposphere, Faraday Discuss., 100,
175–198, https://doi.org/10.1039/FD9950000175, 1995.
Platt, U. and Lehrer, E.: Arctic Tropospheric Ozone Chemistry (ARCTOC) –
Results from field, laboratory and modelling studies, Final Report of the
EU-Project EV5VCT93-0318, available at:
http://bookshop.europa.eu/en/arctic-tropospheric-ozone-chemistry-pbCGNA17783/
(last access: 28 August 2017), 1997.
Platt, U. and Stutz, J.: Differential Optical Absorption Spectroscopy
(DOAS), Principle and Applications, ISBN: 3-340-21193-4, Springer Verlag, Heidelberg, 2008.
Pöhler, D., Vogel, L., Frieß, U., and Platt, U.: Observation of
halogen species in the Amundsen Gulf, Arctic, by active long-path
differential optical absorption spectroscopy, P. Natl. Acad. Sci. USA, 107,
6582–6587, https://doi.org/10.1073/pnas.0912231107, 2010.
Prados-Roman, C., Butz, A., Deutschmann, T., Dorf, M., Kritten, L., Minikin,
A., Platt, U., Schlager, H., Sihler, H., Theys, N., Van Roozendael, M.,
Wagner, T., and Pfeilsticker, K.: Airborne DOAS limb measurements of
tropospheric trace gas profiles: case studies on the profile retrieval of
O4 and BrO, Atmos. Meas. Tech., 4, 1241–1260,
https://doi.org/10.5194/amt-4-1241-2011, 2011.
Prados-Roman, C., Cuevas, C. A., Hay, T., Fernandez, R. P., Mahajan, A. S.,
Royer, S.-J., Galí, M., Simó, R., Dachs, J., Großmann, K.,
Kinnison, D. E., Lamarque, J.-F., and Saiz-Lopez, A.: Iodine oxide in the
global marine boundary layer, Atmos. Chem. Phys., 15, 583–593,
https://doi.org/10.5194/acp-15-583-2015, 2015.
Pratt, K. A., Custard, K. D., Shepson, P. B., Douglas, T. A., Pöhler,
D., General, S., Zielcke, J., Simpson, W. R., Platt, U., Tanner, D. J.,
Huey, L. G., Carlsen, M., and Stirm, B. H.: Photochemical production of
molecular bromine in Arctic surface snowpacks, Nat. Geosci., 6, 351–356,
https://doi.org/10.1038/ngeo1779, 2013.
Puentedura, O., Gil, M., Saiz-Lopez, A., Hay, T., Navarro-Comas, M.,
Gómez-Pelaez, A., Cuevas, E., Iglesias, J., and Gomez, L.: Iodine
monoxide in the north subtropical free troposphere, Atmos. Chem. Phys., 12,
4909–4921, https://doi.org/10.5194/acp-12-4909-2012, 2012.
Richter, A., Wittrock, F., Ladstätter-Weißenmayer, A., and Burrows, J.: GOME measurements of stratospheric and tropospheric BrO,
Adv. Space Res., 29, 1667–1672, https://doi.org/10.1016/S0273-1177(02)00123-0, 2002.
Rodgers, C.: Inverse methods for atmospheric sounding,World Scientific,
Singapore, New Jersey, London, Hongkong, 2000.
Roscoe, H., Brough, N., Jones, A., Wittrock, F., Richter, A., Roozendael, M.
V., and Hendrick, F.: Characterisation of vertical BrO distribution during
events of enhanced tropospheric BrO in Antarctica, from combined remote and
insitu measurements, J. Quant. Spectrosc. Ra., 138, 70–81,
https://doi.org/10.1016/j.jqsrt.2014.01.026, 2014.
Roscoe, H. K., Kreher, K., and Friess, U.: Ozone loss episodes in the free
Antarctic troposphere, suggesting a possible climate feedback, Geophys. Res.
Lett., 28, 2911–2914, https://doi.org/10.1029/2000GL012583, 2001.
Saiz-Lopez, A., Mahajan, A. S., Salmon, R. A., Bauguitte, S. J. B., Jones,
A. E., Roscoe, H. K., and Plane, J. M. C.: Boundary Layer Halogens in
Coastal Antarctica, Science, 317, 348–351, https://doi.org/10.1126/science.1141408,
2007a.
Saiz-Lopez, A., Chance, K., Liu, X., Kurosu, T. P., and Sander, S. P.: First
observations of iodine oxide from space, Geophys. Res. Lett., 34, L12812,
https://doi.org/10.1029/2007GL030111, 2007b.
Saiz-Lopez, A., Plane, J. M. C., Mahajan, A. S., Anderson, P. S., Bauguitte,
S. J.-B., Jones, A. E., Roscoe, H. K., Salmon, R. A., Bloss, W. J., Lee, J.
D., and Heard, D. E.: On the vertical distribution of boundary layer
halogens over coastal Antarctica: implications for O3, HOx,
NOx and the Hg lifetime, Atmos. Chem. Phys., 8, 887–900,
https://doi.org/10.5194/acp-8-887-2008, 2008.
Sander, S. P., Golden, D., Kurylo, M., Moortgat, G.,Wine, P., Ravishankara,
A., Kolb, C., Molina, M., Finlayson-Pitts, B., and Huie, R.: Chemical
kinetics and photochemical data for use in atmospheric studies evaluation
number 15, available at: http://hdl.handle.net/2014/41648 (last access: 30 November 2017), 2006.
Savoie, D., Prospero, J. M., Larsen, R. J., Huang, F., Izaguirre, M. A.,
Huang, T., Snowdon, T. H., Custals, L., and Sanderson, C. G.: Nitrogen and
sulfur species in Antarctic aerosols at Mawson, Palmer Station, and Marsh
(King George Island), J. Atmos. Chem., 17, 95–122, 1993.
Schofield, R., Johnston, P. V., Thomas, A., Kreher, K., Connor, B. J., Wood,
S., Shooter, D., Chipperfield, M. P., Richter, A., von Glasow, R., and
Rodgers, C. D.: Tropospheric and stratospheric BrO columns over Arrival
Heights, Antarctica, 2002, J. Geophys. Res.-Atmos., 111, D22310,
https://doi.org/10.1029/2005JD007022, 2006.
Simpson, W. R., von Glasow, R., Riedel, K., Anderson, P., Ariya, P.,
Bottenheim, J., Burrows, J., Carpenter, L. J., Frieß, U., Goodsite, M.
E., Heard, D., Hutterli, M., Jacobi, H.-W., Kaleschke, L., Neff, B., Plane,
J., Platt, U., Richter, A., Roscoe, H., Sander, R., Shepson, P., Sodeau, J.,
Steffen, A., Wagner, T., and Wolff, E.: Halogens and their role in polar
boundary-layer ozone depletion, Atmos. Chem. Phys., 7, 4375–4418,
https://doi.org/10.5194/acp-7-4375-2007, 2007.
Simpson, W. R., Brown, S. S., Saiz-Lopez, A., Thornton, J. A., and von
Glasow, R.: Tropospheric Halogen Chemistry: Sources, Cycling, and Impacts,
Chem. Rev., 115, 4035–4062, https://doi.org/10.1021/cr5006638, 2015.
Simpson, W. R., Peterson, P. K., Frieß, U., Sihler, H., Lampel, J.,
Platt, U., Moore, C., Pratt, K., Shepson, P., Halfacre, J., and Nghiem, S.
V.: Horizontal and vertical structure of reactive bromine events probed by
bromine monoxide MAX-DOAS, Atmos. Chem. Phys., 17, 9291–9309,
https://doi.org/10.5194/acp-17-9291-2017, 2017.
Solomon, S.: Stratospheric ozone depletion: A review of concepts and
history, Rev. Geophys., 37, 275–316, https://doi.org/10.1029/1999RG900008, 1999.
Spreen, G., Kaleschke, L., and Heygster, G.: Sea ice remote sensing using
AMSR-E 89 GHz channels, J. Geophys. Res., 113,
C02S03, https://doi.org/10.1029/2005JC003384, 2008.
Spurr, R.: LIDORT and VLIDORT: linearized pseudo-spherical scalar and vector
discrete ordinate radiative transfer models for use in remote sensing
retrieval problems, in: Light Scattering Reviews 3,
Springer Praxis Books, edited by: Kokhanovsky, A., vol. 7., Springer, Berlin Heidelberg, 229–275,
2008.
Steffen, A., Douglas, T., Amyot, M., Ariya, P., Aspmo, K., Berg, T.,
Bottenheim, J., Brooks, S., Cobbett, F., Dastoor, A., Dommergue, A.,
Ebinghaus, R., Ferrari, C., Gardfeldt, K., Goodsite, M. E., Lean, D.,
Poulain, A. J., Scherz, C., Skov, H., Sommar, J., and Temme, C.: A synthesis
of atmospheric mercury depletion event chemistry in the atmosphere and snow,
Atmos. Chem. Phys., 8, 1445–1482, https://doi.org/10.5194/acp-8-1445-2008,
2008.
Stephens, C. R., Shepson, P. B., Steffen, A., Bottenheim, J. W., Liao, J.,
Huey, L. G., Apel, E., Weinheimer, A., Hall, S. R., and Cantrell, C.: The
relative importance of chlorine and bromine radicals in the oxidation of
atmospheric mercury at Barrow, Alaska, J. Geophys. Res., 117, D00R11,
https://doi.org/10.1029/2011JD016649, 2012.
Thalman, R. and Volkamer, R.: Temperature dependent absorption
cross-sections of O2-O2 collision pairs between 340 and 630 nm at
atmospherically relevant pressure, Phys. Chem. Chem. Phys., 15,
15371–15381, https://doi.org/10.1039/C3CP50968K, 2013.
Theys, N., Van Roozendael, M., Hendrick, F., Yang, X., De Smedt, I.,
Richter, A., Begoin, M., Errera, Q., Johnston, P. V., Kreher, K., and De
Mazière, M.: Global observations of tropospheric BrO columns using
GOME-2 satellite data, Atmos. Chem. Phys., 11, 1791–1811,
https://doi.org/10.5194/acp-11-1791-2011, 2011.
Thompson, C. R., Shepson, P. B., Liao, J., Huey, L. G., Apel, E. C.,
Cantrell, C. A., Flocke, F., Orlando, J., Fried, A., Hall, S. R., Hornbrook,
R. S., Knapp, D. J., Mauldin III, R. L., Montzka, D. D., Sive, B. C.,
Ullmann, K., Weibring, P., and Weinheimer, A.: Interactions of bromine,
chlorine, and iodine photochemistry during ozone depletions in Barrow,
Alaska, Atmos. Chem. Phys., 15, 9651–9679, https://doi.org/10.5194/acp-15-9651-2015,
2015.
Thompson, C. R., Shepson, P. B., Liao, J., Huey, L. G., Cantrell, C.,
Flocke, F., and Orlando, J.: Bromine atom production and chain propagation
during springtime Arctic ozone depletion events in Barrow, Alaska, Atmos.
Chem. Phys., 17, 3401–3421, https://doi.org/10.5194/acp-17-3401-2017, 2017.
Toyota, K., McConnell, J. C., Staebler, R. M., and Dastoor, A. P.:
Air–snowpack exchange of bromine, ozone and mercury in the springtime
Arctic simulated by the 1-D model PHANTAS – Part 1: In-snow bromine
activation and its impact on ozone, Atmos. Chem. Phys., 14, 4101–4133,
https://doi.org/10.5194/acp-14-4101-2014, 2014.
Tuckermann, M., Ackermann, R., Gölz, C., Lorenzen-Schmidt, H., Senne,
T., Stutz, J., Trost, B., Unold, W., and Platt, U.: DOAS observation of
halogen radical-catalysed arctic boundary layer ozone destruction during the
ARCTOC-campaigns 1995 and 1996 in Ny-Ålesund, Spitsbergen, Tellus B, 49,
533–555, https://doi.org/10.1034/j.1600-0889.49.issue5.9.x, 1997.
Vandaele, A., Hermans, C., Simon, P., Carleer, M., Colin, R., Fally, S.,
Mérienne, M., Jenouvrier, A., and Coquart, B.: Measurements of the NO2
absorption cross-section from 42 000 cm−1 to 10 000 cm−1
(238–1000 nm) at 220 K and 294 K, J. Quant. Spectrosc. Ra., 59, 171–184,
https://doi.org/10.1016/S0022-4073(97)00168-4, 1998.
Vogt, R., Crutzen, P. J., and Sander, R.: A mechanism for halogen release from sea-salt aerosol in the remote marine boundary layer,
Nature, 383, 327–330, https://doi.org/10.1038/383327a0, 1996.
von Glasow, R., Sander, R., Bott, A., and Crutzen, P. J.: Modelling halogen
chemistry in the marine boundary layer, 1. Cloud-free MBL, J. Geophys. Res.,
107, 4341–4356, https://doi.org/10.1029/2001JD000942, 2002.
von Glasow, R., von Kuhlmann, R., Lawrence, M. G., Platt, U., and Crutzen,
P. J.: Impact of reactive bromine chemistry in the troposphere, Atmos. Chem.
Phys., 4, 2481–2497, https://doi.org/10.5194/acp-4-2481-2004, 2004.
Wagner, T. and Platt, U.: Satellite mapping of enhanced BrO concentrations
in the troposphere, Nature, 395, 486–490,
https://doi.org/10.1038/26723, 1998.
Wagner, T., Leue, C., Wenig, M., Pfeilsticker, K., and Platt, U.: Spatial
and temporal distribution of enhanced boundary
layer BrO concentrations measured by the GOME instrument aboard ERS-2, J.
Geophys. Res., 106, 24225–24235,
https://doi.org/10.1029/2000jd000201, 2001.
Wagner, T., Dix, B., von Friedeburg, C., Frieß, U., Sanghavi, S.,
Sinreich, R., and Platt, U.: MAX-DOAS O4 measurements: A new technique to
derive information on atmospheric aerosols – Principles and information
content, J. Geophys. Res., 109, D22205, https://doi.org/10.1029/2004JD004904, 2004.
Wagner, T., Ibrahim, O., Sinreich, R., Frieß, U., von Glasow, R., and
Platt, U.: Enhanced tropospheric BrO over Antarctic sea ice in mid winter
observed by MAX-DOAS on board the research vessel Polarstern, Atmos. Chem.
Phys., 7, 3129–3142, https://doi.org/10.5194/acp-7-3129-2007, 2007.
Wang, S. and Pratt, K. A.: Molecular halogens above the Arctic snowpack:
Emissions, diurnal variations, and recycling mechanisms, J.
Geophys. Res.-Atmos., 122,
11991–12007,
https://doi.org/10.1002/2017JD027175, 2017.
Wennberg, P.: Bromine explosion, Nature, 397, 299–301, https://doi.org/10.1038/16805,
1999.
Yela, M., Gil-Ojeda, M., Navarro-Comas, M., Gonzalez-Bartolomé, D.,
Puentedura, O., Funke, B., Iglesias, J., Rodríguez, S., García,
O., Ochoa, H., and Deferrari, G.: Hemispheric asymmetry in stratospheric
NO2 trends, Atmos. Chem. Phys., 17, 13373–13389,
https://doi.org/10.5194/acp-17-13373-2017, 2017.
Short summary
Despite the efforts of the scientific community, the abundance and distribution of reactive bromine (BrOx) in the Antarctic troposphere is still poorly characterized. This work presents the first ground-based observations of tropospheric BrO from the Antarctic sites of Belgrano and Marambio. The 2015 measurements reported are also the first contemporary observations of BrO vertical profiles from two Antarctic sites and depict the geographical heterogeneity of BrOx in the Antarctic troposphere.
Despite the efforts of the scientific community, the abundance and distribution of reactive...
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