Articles | Volume 21, issue 5
https://doi.org/10.5194/acp-21-3371-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-21-3371-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
04 Mar 2021
Research article |
| 04 Mar 2021
| 04 Mar 2021
Halogen activation in the plume of Masaya volcano: field observations and box model investigations
Julian Rüdiger
Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University, Mainz, Germany
Environmental Chemistry and Air Research, Technical
University Berlin, Berlin, Germany
Alexandra Gutmann
Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University, Mainz, Germany
Nicole Bobrowski
Institute of Environmental Physics, University of Heidelberg,
Heidelberg, Germany
Max Planck Institute for Chemistry, Mainz, Germany
Marcello Liotta
Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Palermo,
Italy
J. Maarten de Moor
Observatorio Vulcanológico y Sismológico de Costa Rica
Universidad Nacional, Heredia, Costa Rica
Rolf Sander
Max Planck Institute for Chemistry, Mainz, Germany
Florian Dinger
Institute of Environmental Physics, University of Heidelberg,
Heidelberg, Germany
Max Planck Institute for Chemistry, Mainz, Germany
Jan-Lukas Tirpitz
Institute of Environmental Physics, University of Heidelberg,
Heidelberg, Germany
Martha Ibarra
Instituto Nicaragüense de Estudios Territoriales, Managua, Nicaragua
Armando Saballos
Instituto Nicaragüense de Estudios Territoriales, Managua, Nicaragua
María Martínez
Observatorio Vulcanológico y Sismológico de Costa Rica
Universidad Nacional, Heredia, Costa Rica
Elvis Mendoza
Instituto Nicaragüense de Estudios Territoriales, Managua, Nicaragua
Arnoldo Ferrufino
Instituto Nicaragüense de Estudios Territoriales, Managua, Nicaragua
John Stix
Department of Earth and Planetary Sciences, McGill University,
Montreal, Canada
Juan Valdés
Laboratorio de Química de la Atmósfera, Universidad Nacional, Heredia, Costa Rica
Jonathan M. Castro
Institute of Geosciences, Johannes Gutenberg University Mainz, Mainz, Germany
Thorsten Hoffmann
CORRESPONDING AUTHOR
Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University, Mainz, Germany
Related authors
Wenche Aas, Thérèse Salameh, Robert Wegener, Heidi Hellén, Jean-Luc Jaffrezo, Pontus Roldin, Elisabeth Alonso-Blanco, Andres Alastuey, Crist Amelynck, Jgor Arduini, Benjamin Bergmans, Marie Bertrand, Agnes Borbon, Efstratios Bourtsoukidis, Laetitia Bouvier, David Butterfield, Iris Buxbaum, Darius Ceburnis, Anja Claude, Aurélie Colomb, Sophie Darfeuil, James Dernie, Maximilien Desservettaz, Elías Díaz-Ramiro, Marvin Dufresne, René Dubus, Mario Duval, Marie Dury, Anna Font, Kirsten Fossum, Evelyn Freney, Gotzon Gangoiti, Yao Ge, Maria Carmen Gomez, Francisco J. Gómez-Moreno, Marie Gohy, Valérie Gros, Paul Hamer, Bryan Hellack, Hartmut Herrmann, Robert Holla, Adéla Holubová, Niels Jensen, Tuija Jokinen, Matthew Jones, Uwe Käfer, Lukas Kesper, Dieter Klemp, Dagmar Kubistin, Angela Marinoni, Martina Mazzini, Vy Ngoc Thuy Dinh, Jurgita Ovadnevaite, Tuukka Petäjä, Miguel Portillo-Estrada, Jitka Přívozníková, Jean-Philippe Putaud, Stefan Reimann, Laura Renzi, Veronique Riffault, Stuart Ritchie, Chris Robins, Begoña Artíñano Rodríguez de Torres, Laurent Poulain, Julian Rüdiger, Agnieszka Sanocka, Estibaliz Saez de Camara Oleaga, Niels Schoon, Roger Seco, Ivan Simmons, Leïla Simon, David Simpson, Emmanuel Tison, August Thomasson, Svetlana Tsyro, Marsailidh Twigg, Toni Tykkä, Bert Verreyken, Ana Maria Yáñez-Serrano, Sverre Solberg, Karen Yeung, Ilona Ylivinkka, Karl Espen Yttri, Ågot Watne, and Katie Williams
EGUsphere, https://doi.org/10.5194/egusphere-2025-6166, https://doi.org/10.5194/egusphere-2025-6166, 2025
This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
Short summary
Short summary
A one-week intensive VOC and organic-tracer campaign during the 2022 European heatwave showed contributions from both biogenic and anthropogenic sources to ozone and SOA peaks, while model–observation differences underline the need for better characterization of sources and formation pathways.
Bo Galle, Santiago Arellano, Nicole Bobrowski, Vladimir Conde, Tobias P. Fischer, Gustav Gerdes, Alexandra Gutmann, Thorsten Hoffmann, Ima Itikarai, Tomas Krejci, Emma J. Liu, Kila Mulina, Scott Nowicki, Tom Richardson, Julian Rüdiger, Kieran Wood, and Jiazhi Xu
Atmos. Meas. Tech., 14, 4255–4277, https://doi.org/10.5194/amt-14-4255-2021, https://doi.org/10.5194/amt-14-4255-2021, 2021
Short summary
Short summary
Measurements of volcanic gases are important for geophysical research, risk assessment and environmental impact studies. Some gases, like SO2 and BrO, may be studied from the ground at a safe distance using remote sensing techniques. Many other gases require in situ access to the gas plume. Here, a drone may be an attractive alternative. This paper describes a drone specially adapted for volcanic gas studies and demonstrates its use in a field campaign at Manam volcano in Papua New Guinea.
Wenche Aas, Thérèse Salameh, Robert Wegener, Heidi Hellén, Jean-Luc Jaffrezo, Pontus Roldin, Elisabeth Alonso-Blanco, Andres Alastuey, Crist Amelynck, Jgor Arduini, Benjamin Bergmans, Marie Bertrand, Agnes Borbon, Efstratios Bourtsoukidis, Laetitia Bouvier, David Butterfield, Iris Buxbaum, Darius Ceburnis, Anja Claude, Aurélie Colomb, Sophie Darfeuil, James Dernie, Maximilien Desservettaz, Elías Díaz-Ramiro, Marvin Dufresne, René Dubus, Mario Duval, Marie Dury, Anna Font, Kirsten Fossum, Evelyn Freney, Gotzon Gangoiti, Yao Ge, Maria Carmen Gomez, Francisco J. Gómez-Moreno, Marie Gohy, Valérie Gros, Paul Hamer, Bryan Hellack, Hartmut Herrmann, Robert Holla, Adéla Holubová, Niels Jensen, Tuija Jokinen, Matthew Jones, Uwe Käfer, Lukas Kesper, Dieter Klemp, Dagmar Kubistin, Angela Marinoni, Martina Mazzini, Vy Ngoc Thuy Dinh, Jurgita Ovadnevaite, Tuukka Petäjä, Miguel Portillo-Estrada, Jitka Přívozníková, Jean-Philippe Putaud, Stefan Reimann, Laura Renzi, Veronique Riffault, Stuart Ritchie, Chris Robins, Begoña Artíñano Rodríguez de Torres, Laurent Poulain, Julian Rüdiger, Agnieszka Sanocka, Estibaliz Saez de Camara Oleaga, Niels Schoon, Roger Seco, Ivan Simmons, Leïla Simon, David Simpson, Emmanuel Tison, August Thomasson, Svetlana Tsyro, Marsailidh Twigg, Toni Tykkä, Bert Verreyken, Ana Maria Yáñez-Serrano, Sverre Solberg, Karen Yeung, Ilona Ylivinkka, Karl Espen Yttri, Ågot Watne, and Katie Williams
EGUsphere, https://doi.org/10.5194/egusphere-2025-6166, https://doi.org/10.5194/egusphere-2025-6166, 2025
This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
Short summary
Short summary
A one-week intensive VOC and organic-tracer campaign during the 2022 European heatwave showed contributions from both biogenic and anthropogenic sources to ozone and SOA peaks, while model–observation differences underline the need for better characterization of sources and formation pathways.
Jackson Seymore, Miklós Szakáll, Alexander Theis, Subir K. Mitra, Christine Borchers, and Thorsten Hoffmann
Atmos. Chem. Phys., 25, 18249–18265, https://doi.org/10.5194/acp-25-18249-2025, https://doi.org/10.5194/acp-25-18249-2025, 2025
Short summary
Short summary
Laboratory studies examined carbonyl deposition into ice crystals using a flowtube setup. Ice crystals were grown under conditions that mimic cirrus clouds in the presence of carbonyl vapors. Ice and gas samples were collected and analyzed to calculate ice uptake coefficients for 14 carbonyls at different temperatures. This revealed an inverse relationship between uptake and temperature. Vapor pressure and molar mass were found to be the most significant factors in uptake.
Christine Borchers, Lasse Moormann, Bastien Geil, Niklas Karbach, David Wasserzier, and Thorsten Hoffmann
Atmos. Meas. Tech., 18, 7231–7242, https://doi.org/10.5194/amt-18-7231-2025, https://doi.org/10.5194/amt-18-7231-2025, 2025
Short summary
Short summary
A three-dimensionally printed filter holder is connected to a lightweight, high-performance pump. This sampling system allows for easy and cost-effective measurements of organic aerosols at different heights and locations. By elucidating the chemical composition of organic aerosol, sources and processing of the compounds can be identified. Measurements at different altitudes and times of the day provide insight into the chemical aging and daytime trends of the aerosol particles.
Anna Breuninger, Philipp Joppe, Jonas Wilsch, Cornelis Schwenk, Heiko Bozem, Nicolas Emig, Laurin Merkel, Rainer Rossberg, Timo Keber, Arthur Kutschka, Philipp Waleska, Stefan Hofmann, Sarah Richter, Florian Ungeheuer, Konstantin Dörholt, Thorsten Hoffmann, Annette Miltenberger, Johannes Schneider, Peter Hoor, and Alexander L. Vogel
Atmos. Chem. Phys., 25, 16533–16551, https://doi.org/10.5194/acp-25-16533-2025, https://doi.org/10.5194/acp-25-16533-2025, 2025
Short summary
Short summary
This study investigates molecular organic aerosol composition in the upper troposphere and lower stratosphere from an airborne campaign over Central Europe in summer 2024. Via ultra-high-performance liquid chromatography and high-resolution mass spectrometry of tropospheric and stratospheric filter samples, we identified various organic compounds. Our findings underscore the significant cross-tropopause transport of biogenic secondary organic aerosol and anthropogenic pollutants.
Jackson Seymore, Martanda Gautam, Miklós Szakáll, Alexander Theis, Thorsten Hoffmann, Jialiang Ma, Lingli Zhou, and Alexander L. Vogel
Atmos. Chem. Phys., 25, 11829–11845, https://doi.org/10.5194/acp-25-11829-2025, https://doi.org/10.5194/acp-25-11829-2025, 2025
Short summary
Short summary
We investigated the chemical retention of water-soluble organic compounds in Beijing aerosols using an acoustic levitator and drop-freezing experiments. Samples from PM2.5 filter extracts were frozen at -15 °C in an acoustic levitator without artificial nucleators and analyzed using ultra-high resolution mass spectrometry. Our findings reveal a non-normal distribution of retention coefficients that differs from current literature on cloud droplets.
Maja Rüth, Nicole Bobrowski, Ellen Bräutigam, Alexander Nies, Jonas Kuhn, Thorsten Hoffmann, Niklas Karbach, Bastien Geil, Ralph Kleinschek, Stefan Schmitt, and Ulrich Platt
EGUsphere, https://doi.org/10.5194/egusphere-2025-3976, https://doi.org/10.5194/egusphere-2025-3976, 2025
Short summary
Short summary
UV absorption and electrochemical O3 sensor measurement techniques suffer from interferences, especially from SO2, which is a main constituent of volcanic plumes. Only chemiluminescence (CL) O3 monitors have no known interference with SO2. However, modern CL O3 monitors are impractical because they are heavy and bulky. We developed and applied a lightweight version of a CL O3 instrument (l.5 kg, shoebox size) and present the result of those drone based CL O3 measurements.
Raphael Dreger, Timo Kirfel, Andrea Pozzer, Simon Rosanka, Rolf Sander, and Domenico Taraborrelli
Geosci. Model Dev., 18, 4273–4291, https://doi.org/10.5194/gmd-18-4273-2025, https://doi.org/10.5194/gmd-18-4273-2025, 2025
Short summary
Short summary
Model simulations are essential for understanding the interactions between atmospheric composition and weather. However, models including chemistry are very slow. Hence, any computation speedup of such models is important for understanding the role of atmospheric chemistry within the Earth system. In this study we analyzed and optimized the time step for chemistry calculations. Our results show that atmospheric models could be run notably faster without any loss in accuracy.
Simone T. Andersen, Rolf Sander, Patrick Dewald, Laura Wüst, Tobias Seubert, Gunther N. T. E. Türk, Jan Schuladen, Max R. McGillen, Chaoyang Xue, Abdelwahid Mellouki, Alexandre Kukui, Vincent Michoud, Manuela Cirtog, Mathieu Cazaunau, Astrid Bauville, Hichem Bouzidi, Paola Formenti, Cyrielle Denjean, Jean-Claude Etienne, Olivier Garrouste, Christopher Cantrell, Jos Lelieveld, and John N. Crowley
Atmos. Chem. Phys., 25, 5893–5909, https://doi.org/10.5194/acp-25-5893-2025, https://doi.org/10.5194/acp-25-5893-2025, 2025
Short summary
Short summary
Measurements and modelling of reactive nitrogen gases observed in a suburban temperate forest in Rambouillet, France, circa 50 km southwest of Paris in 2022 indicate that the biosphere rapidly scavenges organic nitrates of mixed biogenic and anthropogenic origin, resulting in short lifetimes for, for example, alkyl nitrates and peroxy nitrates.
Jade Margerum, Julia Homann, Stuart Umbo, Gernot Nehrke, Thorsten Hoffmann, Anton Vaks, Aleksandr Kononov, Alexander Osintsev, Alena Giesche, Andrew Mason, Franziska A. Lechleitner, Gideon M. Henderson, Ola Kwiecien, and Sebastian F. M. Breitenbach
Clim. Past, 21, 661–677, https://doi.org/10.5194/cp-21-661-2025, https://doi.org/10.5194/cp-21-661-2025, 2025
Short summary
Short summary
We analyse a southern Siberian stalagmite to reconstruct soil respiration, wildfire, and vegetation trends during the Last Interglacial (LIG) (124.1–118.8 ka) and the Holocene (10–0 ka). Wildfires were more prevalent during the LIG than the Holocene and were supported by fire-prone species, low soil respiration, and a greater difference between summer and winter temperature. We show that vegetation type and summer/winter temperature contrast are strong drivers of Siberian wildfires.
Jan-Lukas Tirpitz, Santo Fedele Colosimo, Nathaniel Brockway, Robert Spurr, Matt Christi, Samuel Hall, Kirk Ullmann, Johnathan Hair, Taylor Shingler, Rodney Weber, Jack Dibb, Richard Moore, Elizabeth Wiggins, Vijay Natraj, Nicolas Theys, and Jochen Stutz
Atmos. Chem. Phys., 25, 1989–2015, https://doi.org/10.5194/acp-25-1989-2025, https://doi.org/10.5194/acp-25-1989-2025, 2025
Short summary
Short summary
We combine plume composition data from the 2019 NASA FIREX-AQ campaign with state-of-the-art radiative transfer modeling techniques to calculate distributions of actinic flux and photolysis frequencies in a wildfire plume. Excellent agreement of the model and observations demonstrates the applicability of this approach to constrain photochemistry in such plumes. We identify limiting factors for the modeling accuracy and discuss spatial and spectral features of the distributions.
Denis Leppla, Stefanie Hildmann, Nora Zannoni, Leslie Kremper, Bruna Hollanda, Jonathan Williams, Christopher Pöhlker, Stefan Wolff, Marta Sà, Maria Cristina Solci, Ulrich Pöschl, and Thorsten Hoffmann
EGUsphere, https://doi.org/10.5194/egusphere-2025-141, https://doi.org/10.5194/egusphere-2025-141, 2025
Short summary
Short summary
The chemical composition of organic particles in the Amazon rainforest was investigated to understand how biogenic and human emissions influence the atmosphere in this unique ecosystem. Seasonal patterns were found where wet seasons were dominated by biogenic compounds from natural sources while dry seasons showed increased fire-related pollutants. These findings reveal how emissions, fires and long-range transport affect atmospheric chemistry, with implications for climate models.
Johanna Schäfer, Anja Beschnitt, François Burgay, Thomas Singer, Margit Schwikowski, and Thorsten Hoffmann
Atmos. Meas. Tech., 18, 421–430, https://doi.org/10.5194/amt-18-421-2025, https://doi.org/10.5194/amt-18-421-2025, 2025
Short summary
Short summary
Glaciers preserve organic compounds from atmospheric aerosols, which can serve as markers for emission sources. Most studies overlook the enantiomers of chiral compounds. We developed a two-dimensional liquid chromatography method to determine the chiral ratios of the monoterpene oxidation products cis-pinic acid and cis-pinonic acid in ice-core samples. Applied to samples from the Belukha Glacier (1870–1970 CE), the method revealed fluctuating chiral ratios for the analytes.
Christine Borchers, Jackson Seymore, Martanda Gautam, Konstantin Dörholt, Yannik Müller, Andreas Arndt, Laura Gömmer, Florian Ungeheuer, Miklós Szakáll, Stephan Borrmann, Alexander Theis, Alexander L. Vogel, and Thorsten Hoffmann
Atmos. Chem. Phys., 24, 13961–13974, https://doi.org/10.5194/acp-24-13961-2024, https://doi.org/10.5194/acp-24-13961-2024, 2024
Short summary
Short summary
Riming, a crucial process in cloud dynamics, influences the vertical distribution of compounds in the atmosphere. Experiments in Mainz's wind tunnel investigated retention coefficients of organic compounds under varying conditions. Findings suggest a correlation between the Henry's law constant and retention, applicable even to complex organic molecules.
Niklas Karbach, Lisa Höhler, Peter Hoor, Heiko Bozem, Nicole Bobrowski, and Thorsten Hoffmann
Atmos. Meas. Tech., 17, 4081–4086, https://doi.org/10.5194/amt-17-4081-2024, https://doi.org/10.5194/amt-17-4081-2024, 2024
Short summary
Short summary
The system presented here can accurately generate and reproduce a stable flow of gas mixtures of known concentrations over several days using ambient air as a dilution medium. In combination with the small size and low weight of the system, this enables the calibration of hydrogen sensors in the field, reducing the influence of matrix effects on the accuracy of the sensor. The system is inexpensive to assemble and easy to maintain, which is the key to reliable measurement results.
Felix Wieser, Rolf Sander, Changmin Cho, Hendrik Fuchs, Thorsten Hohaus, Anna Novelli, Ralf Tillmann, and Domenico Taraborrelli
Geosci. Model Dev., 17, 4311–4330, https://doi.org/10.5194/gmd-17-4311-2024, https://doi.org/10.5194/gmd-17-4311-2024, 2024
Short summary
Short summary
The chemistry scheme of the atmospheric box model CAABA/MECCA is expanded to achieve an improved aerosol formation from emitted organic compounds. In addition to newly added reactions, temperature-dependent partitioning of all new species between the gas and aqueous phases is estimated and included in the pre-existing scheme. Sensitivity runs show an overestimation of key compounds from isoprene, which can be explained by a lack of aqueous-phase degradation reactions and box model limitations.
Simon Rosanka, Holger Tost, Rolf Sander, Patrick Jöckel, Astrid Kerkweg, and Domenico Taraborrelli
Geosci. Model Dev., 17, 2597–2615, https://doi.org/10.5194/gmd-17-2597-2024, https://doi.org/10.5194/gmd-17-2597-2024, 2024
Short summary
Short summary
The capabilities of the Modular Earth Submodel System (MESSy) are extended to account for non-equilibrium aqueous-phase chemistry in the representation of deliquescent aerosols. When applying the new development in a global simulation, we find that MESSy's bias in modelling routinely observed reduced inorganic aerosol mass concentrations, especially in the United States. Furthermore, the representation of fine-aerosol pH is particularly improved in the marine boundary layer.
Cécile Massiot, Ludmila Adam, Eric S. Boyd, S. Craig Cary, Daniel R. Colman, Alysia Cox, Ery Hughes, Geoff Kilgour, Matteo Lelli, Domenico Liotta, Karen G. Lloyd, Tiipene Marr, David D. McNamara, Sarah D. Milicich, Craig A. Miller, Santanu Misra, Alexander R. L. Nichols, Simona Pierdominici, Shane M. Rooyakkers, Douglas R. Schmitt, Andri Stefansson, John Stix, Matthew B. Stott, Camille Thomas, Pilar Villamor, Pujun Wang, Sadiq J. Zarrouk, and the CALDERA workshop participants
Sci. Dril., 33, 67–88, https://doi.org/10.5194/sd-33-67-2024, https://doi.org/10.5194/sd-33-67-2024, 2024
Short summary
Short summary
Volcanoes where tectonic plates drift apart pose eruption and earthquake hazards. Underground waters are difficult to track. Underground microbial life is probably plentiful but unexplored. Scientists discussed the idea of drilling two boreholes in the Okataina Volcanic Centre, New Zealand, to unravel the connections between volcano, faults, geotherms, and the biosphere, also integrating mātauranga Māori (Indigenous knowledge) to assess hazards and manage resources and microbial ecosystems.
Rolf Sander
Geosci. Model Dev., 17, 2419–2425, https://doi.org/10.5194/gmd-17-2419-2024, https://doi.org/10.5194/gmd-17-2419-2024, 2024
Short summary
Short summary
The open-source software MEXPLORER 1.0.0 is presented here. The program can be used to analyze, reduce, and visualize complex chemical reaction mechanisms. The mathematics behind the tool is based on graph theory: chemical species are represented as vertices, and reactions as edges. MEXPLORER is a community model published under the GNU General Public License.
Jessica Salas-Navarro, John Stix, and J. Maarten de Moor
Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2023-265, https://doi.org/10.5194/amt-2023-265, 2024
Revised manuscript not accepted
Short summary
Short summary
We identified and quantified the effects of H2S on CO2 and CH4 concentrations and their respective isotopic compositions using a Picarro instrument model G2201-i. This interference was used to develop a new method to accurately quantify H2S concentrations with a G2201-i. Measuring CO2, CH4, and H2S concentrations in the gas phase within 20 minutes using a single instrument will significantly improve current analytical routines and has the potential to be a powerful tool for volcano monitoring.
Meghna Soni, Rolf Sander, Lokesh K. Sahu, Domenico Taraborrelli, Pengfei Liu, Ankit Patel, Imran A. Girach, Andrea Pozzer, Sachin S. Gunthe, and Narendra Ojha
Atmos. Chem. Phys., 23, 15165–15180, https://doi.org/10.5194/acp-23-15165-2023, https://doi.org/10.5194/acp-23-15165-2023, 2023
Short summary
Short summary
The study presents the implementation of comprehensive multiphase chlorine chemistry in the box model CAABA/MECCA. Simulations for contrasting urban environments of Asia and Europe highlight the significant impacts of chlorine on atmospheric oxidation capacity and composition. Chemical processes governing the production and loss of chlorine-containing species has been discussed. The updated chemical mechanism will be useful to interpret field measurements and for future air quality studies.
Simon Warnach, Holger Sihler, Christian Borger, Nicole Bobrowski, Steffen Beirle, Ulrich Platt, and Thomas Wagner
Atmos. Meas. Tech., 16, 5537–5573, https://doi.org/10.5194/amt-16-5537-2023, https://doi.org/10.5194/amt-16-5537-2023, 2023
Short summary
Short summary
BrO inside volcanic gas plumes but can be used in combination with SO2 to characterize the volcanic property and its activity state. High-quality satellite observations can provide a global inventory of this important quantity. This paper investigates how to accurately detect BrO inside volcanic plumes from the satellite UV spectrum. A sophisticated novel non-volcanic background correction scheme is presented, and systematic errors including cross-interference with formaldehyde are minimized.
Rolf Sander
Atmos. Chem. Phys., 23, 10901–12440, https://doi.org/10.5194/acp-23-10901-2023, https://doi.org/10.5194/acp-23-10901-2023, 2023
Short summary
Short summary
According to Henry's law, the equilibrium ratio between the abundances in the gas phase and in the aqueous phase is constant for a dilute solution. Henry’s law constants of trace gases of potential importance in environmental chemistry have been collected and converted into a uniform format. The compilation contains 46 434 values of Henry's law constants for 10 173 species, collected from 995 references. It is also available on the internet at https://www.henrys-law.org.
Julia Homann, Niklas Karbach, Stacy A. Carolin, Daniel H. James, David Hodell, Sebastian F. M. Breitenbach, Ola Kwiecien, Mark Brenner, Carlos Peraza Lope, and Thorsten Hoffmann
Biogeosciences, 20, 3249–3260, https://doi.org/10.5194/bg-20-3249-2023, https://doi.org/10.5194/bg-20-3249-2023, 2023
Short summary
Short summary
Cave stalagmites contain substances that can be used to reconstruct past changes in local and regional environmental conditions. We used two classes of biomarkers (polycyclic aromatic hydrocarbons and monosaccharide anhydrides) to detect the presence of fire and to also explore changes in fire regime (e.g. fire frequency, intensity, and fuel source). We tested our new method on a stalagmite from Mayapan, a large Maya city on the Yucatán Peninsula.
Robert G. Ryan, Eloise A. Marais, Eleanor Gershenson-Smith, Robbie Ramsay, Jan-Peter Muller, Jan-Lukas Tirpitz, and Udo Frieß
Atmos. Chem. Phys., 23, 7121–7139, https://doi.org/10.5194/acp-23-7121-2023, https://doi.org/10.5194/acp-23-7121-2023, 2023
Short summary
Short summary
We describe the first data retrieval from a newly installed instrument providing measurements of vertical profiles of air pollution over Central London during heatwaves in summer 2022. We use these observations with surface air quality network measurements to support interpretation that an exponential increase in biogenic emissions of isoprene during heatwaves provides the limiting ingredient for severe ozone pollution, leading to non-compliance with the national ozone air quality standard.
Thomas Wagner, Simon Warnach, Steffen Beirle, Nicole Bobrowski, Adrian Jost, Janis Puķīte, and Nicolas Theys
Atmos. Meas. Tech., 16, 1609–1662, https://doi.org/10.5194/amt-16-1609-2023, https://doi.org/10.5194/amt-16-1609-2023, 2023
Short summary
Short summary
We investigate 3D effects of volcanic plumes on the retrieval results of satellite and ground-based UV–Vis observations. With its small ground pixels of 3.5 x 5.5 km², the TROPOMI instrument can detect much smaller volcanic plumes than previous instruments. At the same time, 3D effects become important. The effect of horizontal photon paths especially can lead to a strong underestimation of the derived plume contents of up to > 50 %, which can be further increased for strong absorbers like SO2.
Denis Leppla, Nora Zannoni, Leslie Kremper, Jonathan Williams, Christopher Pöhlker, Marta Sá, Maria Christina Solci, and Thorsten Hoffmann
Atmos. Chem. Phys., 23, 809–820, https://doi.org/10.5194/acp-23-809-2023, https://doi.org/10.5194/acp-23-809-2023, 2023
Short summary
Short summary
Chiral chemodiversity plays a critical role in biochemical processes such as insect and plant communication. Here we report on the measurement of chiral-specified secondary organic aerosol in the Amazon rainforest. The results show that the chiral ratio is mainly determined by large-scale emission processes. Characteristic emissions of chiral aerosol precursors from different forest ecosystems can thus provide large-scale information on different biogenic sources via chiral particle analysis.
Yunfan Liu, Hang Su, Siwen Wang, Chao Wei, Wei Tao, Mira L. Pöhlker, Christopher Pöhlker, Bruna A. Holanda, Ovid O. Krüger, Thorsten Hoffmann, Manfred Wendisch, Paulo Artaxo, Ulrich Pöschl, Meinrat O. Andreae, and Yafang Cheng
Atmos. Chem. Phys., 23, 251–272, https://doi.org/10.5194/acp-23-251-2023, https://doi.org/10.5194/acp-23-251-2023, 2023
Short summary
Short summary
The origins of the abundant cloud condensation nuclei (CCN) in the upper troposphere (UT) of the Amazon remain unclear. With model developments of new secondary organic aerosol schemes and constrained by observation, we show that strong aerosol nucleation and condensation in the UT is triggered by biogenic organics, and organic condensation is key for UT CCN production. This UT CCN-producing mechanism may prevail over broader vegetation canopies and deserves emphasis in aerosol–climate feedback.
Jing Duan, Ru-Jin Huang, Yifang Gu, Chunshui Lin, Haobin Zhong, Wei Xu, Quan Liu, Yan You, Jurgita Ovadnevaite, Darius Ceburnis, Thorsten Hoffmann, and Colin O'Dowd
Atmos. Chem. Phys., 22, 10139–10153, https://doi.org/10.5194/acp-22-10139-2022, https://doi.org/10.5194/acp-22-10139-2022, 2022
Short summary
Short summary
Biomass-burning-influenced oxygenated organic aerosol (OOA-BB), formed from the photochemical oxidation and aging of biomass burning OA (BBOA), was resolved in urban Xi’an. The aqueous-phase processed oxygenated OA (aq-OOA) concentration was more dependent on secondary inorganic aerosol (SIA) content and aerosol liquid water content (ALWC). The increased aq-OOA contribution during SIA-enhanced periods likely reflects OA evolution due to the addition of alcohol or peroxide groups
Matthias Karl, Liisa Pirjola, Tiia Grönholm, Mona Kurppa, Srinivasan Anand, Xiaole Zhang, Andreas Held, Rolf Sander, Miikka Dal Maso, David Topping, Shuai Jiang, Leena Kangas, and Jaakko Kukkonen
Geosci. Model Dev., 15, 3969–4026, https://doi.org/10.5194/gmd-15-3969-2022, https://doi.org/10.5194/gmd-15-3969-2022, 2022
Short summary
Short summary
The community aerosol dynamics model MAFOR includes several advanced features: coupling with an up-to-date chemistry mechanism for volatile organic compounds, a revised Brownian coagulation kernel that takes into account the fractal geometry of soot particles, a multitude of nucleation parameterizations, size-resolved partitioning of semi-volatile inorganics, and a hybrid method for the formation of secondary organic aerosols within the framework of condensation and evaporation.
Jan-Lukas Tirpitz, Udo Frieß, Robert Spurr, and Ulrich Platt
Atmos. Meas. Tech., 15, 2077–2098, https://doi.org/10.5194/amt-15-2077-2022, https://doi.org/10.5194/amt-15-2077-2022, 2022
Short summary
Short summary
MAX-DOAS is a widely used measurement technique for the remote detection of atmospheric aerosol and trace gases. It relies on the analysis of ultra-violet and visible radiation spectra of skylight. To date, information contained in the skylight's polarisation state has not been utilised. On the basis of synthetic data, we carried out sensitivity analyses to assess the potential of polarimetry for MAX-DOAS applications.
Andrea Pozzer, Simon F. Reifenberg, Vinod Kumar, Bruno Franco, Matthias Kohl, Domenico Taraborrelli, Sergey Gromov, Sebastian Ehrhart, Patrick Jöckel, Rolf Sander, Veronica Fall, Simon Rosanka, Vlassis Karydis, Dimitris Akritidis, Tamara Emmerichs, Monica Crippa, Diego Guizzardi, Johannes W. Kaiser, Lieven Clarisse, Astrid Kiendler-Scharr, Holger Tost, and Alexandra Tsimpidi
Geosci. Model Dev., 15, 2673–2710, https://doi.org/10.5194/gmd-15-2673-2022, https://doi.org/10.5194/gmd-15-2673-2022, 2022
Short summary
Short summary
A newly developed setup of the chemistry general circulation model EMAC (ECHAM5/MESSy for Atmospheric Chemistry) is evaluated here. A comprehensive organic degradation mechanism is used and coupled with a volatility base model.
The results show that the model reproduces most of the tracers and aerosols satisfactorily but shows discrepancies for oxygenated organic gases. It is also shown that this model configuration can be used for further research in atmospheric chemistry.
Jonas Kuhn, Nicole Bobrowski, Thomas Wagner, and Ulrich Platt
Atmos. Meas. Tech., 14, 7873–7892, https://doi.org/10.5194/amt-14-7873-2021, https://doi.org/10.5194/amt-14-7873-2021, 2021
Short summary
Short summary
We propose spectrograph implementations using Fabry–Pérot interferometers for atmospheric trace gas remote sensing. Compared with widely used grating spectrographs, we find substantial light throughput and mobility advantages for high resolving powers. Besides lowering detection limits and increasing the spatial and temporal resolution of many atmospheric trace gas measurements, this approach might enable remote sensing of further important gases such as tropospheric OH radicals.
Alexandra Gutmann, Nicole Bobrowski, Marcello Liotta, and Thorsten Hoffmann
Atmos. Meas. Tech., 14, 6395–6406, https://doi.org/10.5194/amt-14-6395-2021, https://doi.org/10.5194/amt-14-6395-2021, 2021
Short summary
Short summary
Motivated by a special interest in bromine chemistry in volcanic plumes, the study presented here describes a new method for the quantitative collection of gaseous hydrogen bromide in gas diffusion denuders. The hydrogen bromide reacted during sampling with appropriate epoxides applied to the denuder walls. The denuder sampling assembly was successfully deployed in the volcanic plume of Masaya volcano, Nicaragua.
Philipp G. Eger, Luc Vereecken, Rolf Sander, Jan Schuladen, Nicolas Sobanski, Horst Fischer, Einar Karu, Jonathan Williams, Ville Vakkari, Tuukka Petäjä, Jos Lelieveld, Andrea Pozzer, and John N. Crowley
Atmos. Chem. Phys., 21, 14333–14349, https://doi.org/10.5194/acp-21-14333-2021, https://doi.org/10.5194/acp-21-14333-2021, 2021
Short summary
Short summary
We determine the impact of pyruvic acid photolysis on the formation of acetaldehyde and peroxy radicals during summer and autumn in the Finnish boreal forest using a data-constrained box model. Our results are dependent on the chosen scenario in which the overall quantum yield and the photolysis products are varied. We highlight that pyruvic acid photolysis can be an important contributor to acetaldehyde and peroxy radical formation in remote, forested regions.
Haijie Tong, Fobang Liu, Alexander Filippi, Jake Wilson, Andrea M. Arangio, Yun Zhang, Siyao Yue, Steven Lelieveld, Fangxia Shen, Helmi-Marja K. Keskinen, Jing Li, Haoxuan Chen, Ting Zhang, Thorsten Hoffmann, Pingqing Fu, William H. Brune, Tuukka Petäjä, Markku Kulmala, Maosheng Yao, Thomas Berkemeier, Manabu Shiraiwa, and Ulrich Pöschl
Atmos. Chem. Phys., 21, 10439–10455, https://doi.org/10.5194/acp-21-10439-2021, https://doi.org/10.5194/acp-21-10439-2021, 2021
Short summary
Short summary
We measured radical yields of aqueous PM2.5 extracts and found lower yields at higher concentrations of PM2.5. Abundances of water-soluble transition metals and aromatics in PM2.5 were positively correlated with the relative fraction of •OH but negatively correlated with the relative fraction of C-centered radicals among detected radicals. Composition-dependent reactive species yields may explain differences in the reactivity and health effects of PM2.5 in clean versus polluted air.
Simon Rosanka, Rolf Sander, Andreas Wahner, and Domenico Taraborrelli
Geosci. Model Dev., 14, 4103–4115, https://doi.org/10.5194/gmd-14-4103-2021, https://doi.org/10.5194/gmd-14-4103-2021, 2021
Short summary
Short summary
The Jülich Aqueous-phase Mechanism of Organic Chemistry (JAMOC) is developed and implemented into the Module Efficiently Calculating the Chemistry of the Atmosphere (MECCA). JAMOC is an explicit in-cloud oxidation scheme for oxygenated volatile organic compounds (OVOCs), which is suitable for global model applications. Within a box-model study, we show that JAMOC yields reduced gas-phase concentrations of most OVOCs and oxidants, except for nitrogen oxides.
Simon Rosanka, Rolf Sander, Bruno Franco, Catherine Wespes, Andreas Wahner, and Domenico Taraborrelli
Atmos. Chem. Phys., 21, 9909–9930, https://doi.org/10.5194/acp-21-9909-2021, https://doi.org/10.5194/acp-21-9909-2021, 2021
Short summary
Short summary
In-cloud destruction of ozone depends on hydroperoxyl radicals in cloud droplets, where they are produced by oxygenated volatile organic compound (OVOC) oxygenation. Only rudimentary representations of these processes, if any, are currently available in global atmospheric models. By using a comprehensive atmospheric model that includes a complex in-cloud OVOC oxidation scheme, we show that atmospheric oxidants are reduced and models ignoring this process will underpredict clouds as ozone sinks.
Florian Dinger, Timo Kleinbek, Steffen Dörner, Nicole Bobrowski, Ulrich Platt, Thomas Wagner, Martha Ibarra, and Eveling Espinoza
Atmos. Chem. Phys., 21, 9367–9404, https://doi.org/10.5194/acp-21-9367-2021, https://doi.org/10.5194/acp-21-9367-2021, 2021
Short summary
Short summary
Monitoring magnitude or chemical composition of volcanic gas emissions can help to forecast volcanic eruptions and provides empirical data on the impact of volcanoes on the chemistry in the local and global atmosphere. This study reports and discusses continuous time series of the sulfur and bromine emission fluxes of Masaya from 2014 to 2020. We observed an annual cyclicity in the BrO / SO2 molar ratio, possibly caused by the annual variability in the atmospheric humidity.
Kai Wang, Ru-Jin Huang, Martin Brüggemann, Yun Zhang, Lu Yang, Haiyan Ni, Jie Guo, Meng Wang, Jiajun Han, Merete Bilde, Marianne Glasius, and Thorsten Hoffmann
Atmos. Chem. Phys., 21, 9089–9104, https://doi.org/10.5194/acp-21-9089-2021, https://doi.org/10.5194/acp-21-9089-2021, 2021
Short summary
Short summary
Here we present the detailed molecular composition of the organic aerosol collected in three eastern Chinese cities from north to south, Changchun, Shanghai and Guangzhou, by applying LC–Orbitrap analysis. Accordingly, the aromaticity degree of chemical compounds decreases from north to south, while the oxidation degree increases from north to south, which can be explained by the different anthropogenic emissions and photochemical oxidation processes.
Bo Galle, Santiago Arellano, Nicole Bobrowski, Vladimir Conde, Tobias P. Fischer, Gustav Gerdes, Alexandra Gutmann, Thorsten Hoffmann, Ima Itikarai, Tomas Krejci, Emma J. Liu, Kila Mulina, Scott Nowicki, Tom Richardson, Julian Rüdiger, Kieran Wood, and Jiazhi Xu
Atmos. Meas. Tech., 14, 4255–4277, https://doi.org/10.5194/amt-14-4255-2021, https://doi.org/10.5194/amt-14-4255-2021, 2021
Short summary
Short summary
Measurements of volcanic gases are important for geophysical research, risk assessment and environmental impact studies. Some gases, like SO2 and BrO, may be studied from the ground at a safe distance using remote sensing techniques. Many other gases require in situ access to the gas plume. Here, a drone may be an attractive alternative. This paper describes a drone specially adapted for volcanic gas studies and demonstrates its use in a field campaign at Manam volcano in Papua New Guinea.
Inken Heidke, Adam Hartland, Denis Scholz, Andrew Pearson, John Hellstrom, Sebastian F. M. Breitenbach, and Thorsten Hoffmann
Biogeosciences, 18, 2289–2300, https://doi.org/10.5194/bg-18-2289-2021, https://doi.org/10.5194/bg-18-2289-2021, 2021
Short summary
Short summary
We analyzed lignin oxidation products (LOPs) in leaf litter and different soil horizons as well as dripwater and flowstone samples from four different cave sites from different vegetation zones in New Zealand using liquid chromatography coupled to mass spectrometry. We test whether the original source-dependent LOP signal of the overlying vegetation is preserved and can be recovered from flowstone samples and investigate how the signal is altered by the transport from the soil to the cave.
Santiago Arellano, Bo Galle, Fredy Apaza, Geoffroy Avard, Charlotte Barrington, Nicole Bobrowski, Claudia Bucarey, Viviana Burbano, Mike Burton, Zoraida Chacón, Gustavo Chigna, Christian Joseph Clarito, Vladimir Conde, Fidel Costa, Maarten De Moor, Hugo Delgado-Granados, Andrea Di Muro, Deborah Fernandez, Gustavo Garzón, Hendra Gunawan, Nia Haerani, Thor H. Hansteen, Silvana Hidalgo, Salvatore Inguaggiato, Mattias Johansson, Christoph Kern, Manne Kihlman, Philippe Kowalski, Pablo Masias, Francisco Montalvo, Joakim Möller, Ulrich Platt, Claudia Rivera, Armando Saballos, Giuseppe Salerno, Benoit Taisne, Freddy Vásconez, Gabriela Velásquez, Fabio Vita, and Mathieu Yalire
Earth Syst. Sci. Data, 13, 1167–1188, https://doi.org/10.5194/essd-13-1167-2021, https://doi.org/10.5194/essd-13-1167-2021, 2021
Short summary
Short summary
This study presents a dataset of volcanic sulfur dioxide (SO2) emissions from 2005–2017. Measurements were obtained by Network for Observation of Volcanic and Atmospheric Change (NOVAC) scanning differential optical absorption spectrometer (ScanDOAS) instruments at 32 volcanoes and processed using a standardized procedure. We show statistics of volcanic gas emissions under a variety of conditions and compare them with averages derived from measurements from space and historical inventories.
Wei Yuan, Ru-Jin Huang, Lu Yang, Ting Wang, Jing Duan, Jie Guo, Haiyan Ni, Yang Chen, Qi Chen, Yongjie Li, Ulrike Dusek, Colin O'Dowd, and Thorsten Hoffmann
Atmos. Chem. Phys., 21, 3685–3697, https://doi.org/10.5194/acp-21-3685-2021, https://doi.org/10.5194/acp-21-3685-2021, 2021
Short summary
Short summary
We characterized the seasonal variations in nitrated aromatic compounds (NACs) in composition, sources, and their light absorption contribution to brown carbon (BrC) aerosol in Xi'an, Northwest China. Our results show that secondary formation and vehicular emission were dominant sources in summer (~80 %), and biomass burning and coal combustion were major sources in winter (~75 %), and they indicate that the composition and sources of NACs have a profound impact on the light absorption of BrC
Domenico Taraborrelli, David Cabrera-Perez, Sara Bacer, Sergey Gromov, Jos Lelieveld, Rolf Sander, and Andrea Pozzer
Atmos. Chem. Phys., 21, 2615–2636, https://doi.org/10.5194/acp-21-2615-2021, https://doi.org/10.5194/acp-21-2615-2021, 2021
Short summary
Short summary
Atmospheric pollutants from anthropogenic activities and biomass burning are usually regarded as ozone precursors. Monocyclic aromatics are no exception. Calculations with a comprehensive atmospheric model are consistent with this view but only for air masses close to pollution source regions. However, the same model predicts that aromatics, when transported to remote areas, may effectively destroy ozone. This loss of tropospheric ozone rivals the one attributed to bromine.
Christopher Fuchs, Jonas Kuhn, Nicole Bobrowski, and Ulrich Platt
Atmos. Meas. Tech., 14, 295–307, https://doi.org/10.5194/amt-14-295-2021, https://doi.org/10.5194/amt-14-295-2021, 2021
Short summary
Short summary
We present first measurements of volcanic SO2 emissions with a novel imaging technique for atmospheric trace gases in the UV and visible spectral range. Periodic spectral Fabry–Pérot interferometer transmission features are matched to differential absorption cross sections of the investigated trace gas, yielding high selectivity and sensitivity. The technique can be extended to measure many other trace gases with high spatio-temporal resolution.
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
Short summary
Short summary
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.
Cited articles
Aiuppa, A.: Degassing of halogens from basaltic volcanism: Insights from
volcanic gas observations, Chem. Geol., 263, 99–109,
https://doi.org/10.1016/j.chemgeo.2008.08.022, 2009.
Aiuppa, A., Federico, C., Franco, A., Giudice, G., Gurrieri, S.,
Inguaggiato, S., Liuzzo, M., McGonigle, A. J. S., and Valenza, M.: Emission
of bromine and iodine from Mount Etna volcano, Geochem. Geophy.
Geosy., 6, Q08008, https://doi.org/10.1029/2005GC000965, 2005.
Aiuppa, A., Federico, C., Giudice, G., Gurrieri, S., Liuzzo, M., Shinohara,
H., Favara, R., and Valenza, M.: Rates of carbon dioxide plume degassing
from Mount Etna volcano, J. Geophys. Res., 111, B09207,
https://doi.org/10.1029/2006JB004307, 2006.
Aiuppa, A., Moretti, R., Federico, C., Giudice, G., Gurrieri, S., Liuzzo,
M., Papale, P., Shinohara, H., and Valenza, M.: Forecasting Etna eruptions
by real-time observation of volcanic gas composition, Geology, 35,
1115–1118, https://doi.org/10.1130/G24149A.1, 2007.
Aiuppa, A., Baker, D. R., and Webster, J. D.: Halogens in volcanic systems,
Chem. Geol., 263, 1–18, https://doi.org/10.1016/j.chemgeo.2008.10.005, 2009.
Aiuppa, A., de Moor, J. M., Arellano, S., Coppola, D., Francofonte, V.,
Galle, B., Giudice, G., Liuzzo, M., Mendoza, E., Saballos, A., Tamburello,
G., Battaglia, A., Bitetto, M., Gurrieri, S., Laiolo, M., Mastrolia, A., and
Moretti, R.: Tracking Formation of a Lava Lake From Ground and Space: Masaya
Volcano (Nicaragua), 2014–2017, Geochem. Geophy. Geosy., 19,
496–515, https://doi.org/10.1002/2017GC007227, 2018.
Bobrowski, N. and Giuffrida, G.: Bromine monoxide / sulphur dioxide ratios in relation to volcanological observations at Mt. Etna 2006–2009, Solid Earth, 3, 433–445, https://doi.org/10.5194/se-3-433-2012, 2012.
Bobrowski, N. and Platt, U.: SO2/BrO ratios studied in five volcanic plumes,
J. Volcanol. Geoth. Res., 166, 147–160, 2007.
Bobrowski, N., Hönninger, G., Galle, B., and Platt, U.: Detection of
bromine monoxide in a volcanic plume, Nature, 423, 273–276, 2003.
Bobrowski, N., von Glasow, R., Aiuppa, A., Inguaggiato, S., Louban, I.,
Ibrahim, O. W., and Platt, U.: Reactive halogen chemistry in volcanic
plumes, J. Geophys. Res., 112, https://doi.org/10.1029/2006JD007206,
2007.
Bobrowski, N., Giuffrida, G. B., Arellano, S., Yalire, M., Liotta, M.,
Brusca, L., Calabrese, S., Scaglione, S., Rüdiger, J., Castro, J. M.,
Galle, B., and Tedesco, D.: Plume composition and volatile flux of
Nyamulagira volcano, Democratic Republic of Congo, during birth and
evolution of the lava lake, 2014–2015, B. Volcanol., 79, B09207,
https://doi.org/10.1007/s00445-017-1174-0, 2017.
Bryukov, M. G., Slagle, I. R., and Knyazev, V. D.: Kinetics of Reactions of
Cl Atoms with Methane and Chlorinated Methanes, J. Phys.
Chem., 106, 10532–10542, https://doi.org/10.1021/jp0257909, 2002.
Burton, M. R., Oppenheimer, C., Horrocks, L. A., and Francis, P. W.: Remote
sensing of CO2 and H2O emission rates from Masaya volcano, Nicaragua,
Geology, 28, 915–918, https://doi.org/10.1130/0091-7613(2000)28<915:RSOCAH>2.0.CO;2, 2000.
Cadoux, A., Iacono-Marziano, G., Scaillet, B., Aiuppa, A., Mather, T. A.,
Pyle, D. M., Deloule, E., Gennaro, E., and Paonita, A.: The role of melt
composition on aqueous fluid vs. silicate melt partitioning of bromine in
magmas, Earth Planet. Sci. Lett., 498, 450–463,
https://doi.org/10.1016/j.epsl.2018.06.038, 2018.
Carn, S. A., Froyd, K. D., Anderson, B. E., Wennberg, P., Crounse, J.,
Spencer, K., Dibb, J. E., Krotkov, N. A., Browell, E. V., Hair, J. W.,
Diskin, G., Sachse, G., and Vay, S. A.: In situ measurements of tropospheric
volcanic plumes in Ecuador and Colombia during TC 4, J. Geophys.
Res., 116, 86, https://doi.org/10.1029/2010JD014718, 2011.
Carn, S. A., Clarisse, L., and Prata, A. J.: Multi-decadal satellite
measurements of global volcanic degassing, J. Volcanol.
Geoth. Res., 311, 99–134, https://doi.org/10.1016/j.jvolgeores.2016.01.002,
2016.
Carn, S. A., Fioletov, V. E., McLinden, C. A., Li, C., and Krotkov, N. A.: A
decade of global volcanic SO2 emissions measured from space, Sci.
Rep., 7, 44095, https://doi.org/10.1038/srep44095, 2017.
Carroll, R. and Holloway, J. R. (Eds.): Volatiles in magmas, in: Reviews in Mineralogy & Geochemistry, 30, De Gruyter,
https://doi.org/10.1515/9781501509674, 1994.
Delmelle, P.: Environmental impacts of tropospheric volcanic gas plumes,
Geol. Soc. London Sp. Pub., 213, 381–399,
https://doi.org/10.1144/GSL.SP.2003.213.01.23, 2003.
Delmelle, P., Stix, J., Baxter, P., Garcia-Alvarez, J., and Barquero, J.:
Atmospheric dispersion, environmental effects and potential health hazard
associated with the low-altitude gas plume of Masaya volcano, Nicaragua,
B. Volcanol., 64, 423–434, https://doi.org/10.1007/s00445-002-0221-6, 2002.
de Moor, J. M., Fischer, T. P., Sharp, Z. D., King, P. L., Wilke, M.,
Botcharnikov, R. E., Cottrell, E., Zelenski, M., Marty, B., Klimm, K.,
Rivard, C., Ayalew, D., Ramirez, C., and Kelley, K. A.: Sulfur degassing at
Erta Ale (Ethiopia) and Masaya (Nicaragua) volcanoes: Implications for
degassing processes and oxygen fugacities of basaltic systems, Geochem.
Geophy. Geosy., 14, 4076–4108, https://doi.org/10.1002/ggge.20255, 2013.
de Moor, J. M., Aiuppa, A., Avard, G., Wehrmann, H., Dunbar, N., Muller, C.,
Tamburello, G., Giudice, G., Liuzzo, M., Moretti, R., Conde, V., and Galle,
B.: Turmoil at Turrialba Volcano (Costa Rica): Degassing and eruptive
processes inferred from high-frequency gas monitoring, J.
Geophys. Res.-Sol. Ea., 121, 5761–5775,
https://doi.org/10.1002/2016JB013150, 2016.
de Moor, J. M., Kern, C., Avard, G., Muller, C., Aiuppa, A., Saballos, A.,
Ibarra, M., LaFemina, P., Protti, M., and Fischer, T. P.: A New Sulfur and
Carbon Degassing Inventory for the Southern Central American Volcanic Arc:
The Importance of Accurate Time-Series Datasets and Possible Tectonic
Processes Responsible for Temporal Variations in Arc-Scale Volatile
Emissions, Geochem. Geophy. Geosy., 18, 4437–4468, https://doi.org/10.1002/2017GC007141,
2017.
Dinger, F.: On long-term variations in the BrO/SO2 molar ratios in volcanic
gas plumes, PhD thesis, Johannes Gutenberg-University Mainz, Mainz, Germany, 251 pp., 2019.
Dinger, F., Bobrowski, N., Warnach, S., Bredemeyer, S., Hidalgo, S., Arellano, S., Galle, B., Platt, U., and Wagner, T.: Periodicity in the BrO
Donovan, A., Tsanev, V., Oppenheimer, C., and Edmonds, M.: Reactive halogens
(BrO and OClO) detected in the plume of Soufrière Hills Volcano during
an eruption hiatus, Geochem. Geophy. Geosy., 15, 3346–3363,
https://doi.org/10.1002/2014GC005419, 2014.
Duffell, H. J., Oppenheimer, C., Pyle, D. M., Galle, B., McGonigle, A. J. S.,
and Burton, M. R.: Changes in gas composition prior to a minor explosive
eruption at Masaya volcano, Nicaragua, J. Volcanol. Geoth.
Res., 126, 327–339, https://doi.org/10.1016/S0377-0273(03)00156-2, 2003.
Fickert, S., Adams, J. W., and Crowley, J. N.: Activation of Br2 and BrCl
via uptake of HOBr onto aqueous salt solutions, J. Geophys.
Res.-Atmos., 104, 23719–23727, https://doi.org/10.1029/1999JD900359, 1999.
Galle, B., Johansson, M., Rivera, C., Zhang, Y., Kihlman, M., Kern, C.,
Lehmann, T., Platt, U., Arellano, S., and Hidalgo, S.: Network for
Observation of Volcanic and Atmospheric Change (NOVAC) – A global network
for volcanic gas monitoring: Network layout and instrument description,
J. Geophys. Res., 115, D05304, https://doi.org/10.1029/2009JD011823, 2010.
General, S., Bobrowski, N., Pöhler, D., Weber, K., Fischer, C., and
Platt, U.: Airborne I-DOAS measurements at Mt. Etna: BrO and OClO evolution
in the plume, J. Volcanol. Geoth. Res., 300, 175–186,
https://doi.org/10.1016/j.jvolgeores.2014.05.012, 2015.
Gerlach, T. M.: Volcanic sources of tropospheric ozone-depleting trace
gases, Geochem. Geophy. Geosy., 5, Q09007, https://doi.org/10.1029/2004GC000747,
2004.
Giggenbach, W. F.: Variations in the carbon, sulfur and chlorine contents of
volcanic gas discharges from White Island, New Zealand, B.
Volcanol., 39, 15–27, https://doi.org/10.1007/BF02596943, 1975.
Gliß, J., Bobrowski, N., Vogel, L., Pöhler, D., and Platt, U.: OClO and BrO observations in the volcanic plume of Mt. Etna – implications on the chemistry of chlorine and bromine species in volcanic plumes, Atmos. Chem. Phys., 15, 5659–5681, https://doi.org/10.5194/acp-15-5659-2015, 2015.
Gutmann, A., Bobrowski, N., Roberts, T., Rüdiger, J., and Hoffmann, T.:
Advances in bromine speciation in volcanic plumes, Front. Earth Sci., 6,
213, https://doi.org/10.3389/feart.2018.00213, 2018.
Heue, K.-P., Brenninkmeijer, C. A. M., Baker, A. K., Rauthe-Schöch, A., Walter, D., Wagner, T., Hörmann, C., Sihler, H., Dix, B., Frieß, U., Platt, U., Martinsson, B. G., van Velthoven, P. F. J., Zahn, A., and Ebinghaus, R.: SO2 and BrO observation in the plume of the Eyjafjallajökull volcano 2010: CARIBIC and GOME-2 retrievals, Atmos. Chem. Phys., 11, 2973–2989, https://doi.org/10.5194/acp-11-2973-2011, 2011.
Hippler, H. and Troe, J.: Flash photolysis study of the recombination of
chlorine atoms in the presence of various inert gases and NO, Int.
J. Chem. Kinet., 8, 501–510, https://doi.org/10.1002/kin.550080404, 1976.
Hobbs, P. V., Tuell, J. P., Hegg, D. A., Radke, L. F., and Eltgroth, M. W.:
Particles and gases in the emissions from the 1980–1981 volcanic eruptions
of Mt. St. Helens, J. Geophys. Res., 87, 11062,
https://doi.org/10.1029/JC087iC13p11062, 1982.
Hoffmann, T., O'Dowd, C. D., and Seinfeld, J. H.: Iodine oxide homogeneous
nucleation: An explanation for coastal new particle production, Geophys.
Res. Lett., 28, 1949–1952, https://doi.org/10.1029/2000GL012399, 2001.
Huff, A. K. and Abbatt, J. P. D.: Gas-Phase Br2 Production in Heterogeneous
Reactions of Cl2 HOCl, and BrCl with Halide-Ice Surfaces, J.
Phys. Chem., 104, 7284–7293, https://doi.org/10.1021/jp001155w, 2000.
Iowa State University: Iowa Environmental Mesonet: ASOS-AWOS-METAR Data, availabne at: https://mesonet.agron.iastate.edu/request/download.phtml?network=NI_ASOS, last access: 20 October 2018.
Kelly, P. J., Kern, C., Roberts, T. J., Lopez, T., Werner, C., and Aiuppa,
A.: Rapid chemical evolution of tropospheric volcanic emissions from Redoubt
Volcano, Alaska, based on observations of ozone and halogen-containing
gases, J. Volcanol. Geoth. Res., 259, 317–333,
https://doi.org/10.1016/j.jvolgeores.2012.04.023, 2013.
Kern, C. and Lyons, J. J.: Spatial distribution of halogen oxides in the
plume of Mount Pagan volcano, Mariana Islands, Geophys. Res. Lett., 45, 9588–9596,
https://doi.org/10.1029/2018GL079245, 2018.
Kern, C., Sihler, H., Vogel, L., Rivera, C., Herrera, M., and Platt, U.:
Halogen oxide measurements at Masaya Volcano, Nicaragua using active long
path differential optical absorption spectroscopy, B. Volcanol.,
71, 659–670, https://doi.org/10.1007/s00445-008-0252-8, 2009.
Laaksonen, A., Korhonen, P., Kulmala, M., and Charlson, R. J.: Modification
of the Köhler Equation to Include Soluble Trace Gases and Slightly
Soluble Substances, J. Atmos. Sci., 55, 853–862,
https://doi.org/10.1175/1520-0469(1998)055<0853:MOTKHE>2.0.CO;2,
1998.
Lee, C., Kim, Y. J., Tanimoto, H., Bobrowski, N., Platt, U., Mori, T.,
Yamamoto, K., and Hong, C. S.: High ClO and ozone depletion observed in the
plume of Sakurajima volcano, Japan, Geophys. Res. Lett., 32, L21809, https://doi.org/10.1029/2005GL023785, 2005.
Liotta, M., Rizzo, A., Paonita, A., Caracausi, A., and Martelli, M.: Sulfur
isotopic compositions of fumarolic and plume gases at Mount Etna (Italy) and
inferences on their magmatic source, Geochem. Geophy. Geosy., 13, Q05015,
https://doi.org/10.1029/2012GC004118, 2012.
Louban, I., Bobrowski, N., Rouwet, D., Inguaggiato, S., and Platt, U.:
Imaging DOAS for volcanological applications, B. Volcanol., 71,
753–765, https://doi.org/10.1007/s00445-008-0262-6, 2009.
Lübcke, P., Bobrowski, N., Arellano, S., Galle, B., Garzón, G., Vogel, L., and Platt, U.: BrO/SO2 molar ratios from scanning DOAS measurements in the NOVAC network, Solid Earth, 5, 409–424, https://doi.org/10.5194/se-5-409-2014, 2014.
Malavelle, F. F., Haywood, J. M., Jones, A., Gettelman, A., Clarisse, L.,
Bauduin, S., Allan, R. P., Karset, I. H. H., Kristjánsson, J. E.,
Oreopoulos, L., Cho, N., Lee, D., Bellouin, N., Boucher, O., Grosvenor, D.
P., Carslaw, K. S., Dhomse, S., Mann, G. W., Schmidt, A., Coe, H., Hartley,
M. E., Dalvi, M., Hill, A. A., Johnson, B. T., Johnson, C. E., Knight, J.
R., O'Connor, F. M., Partridge, D. G., Stier, P., Myhre, G., Platnick, S.,
Stephens, G. L., Takahashi, H., and Thordarson, T.: Strong constraints on
aerosol-cloud interactions from volcanic eruptions, Nature, 546, 485,
https://doi.org/10.1038/nature22974, 2017.
Maric, D., Burrows, J. P., and Moortgat, G. K.: A study of the UV-visible absorption spectra of Br2 and
BrCl, J. Photoch. Photobio. A, 83, 179–192,
https://doi.org/10.1016/1010-6030(94)03823-6, 1994.
Martin, R. S., Mather, T. A., and Pyle, D. M.: High-temperature mixtures of
magmatic and atmospheric gases, Geochem. Geophy. Geosy., 7, Q04006,
https://doi.org/10.1029/2005GC001186, 2006.
Martin, R. S., Sawyer, G. M., Spampinato, L., Salerno, G. G., Ramirez, C.,
Ilyinskaya, E., Witt, M. L. I., Mather, T. A., Watson, I. M., Phillips, J.
C., and Oppenheimer, C.: A total volatile inventory for Masaya Volcano,
Nicaragua, J. Geophys. Res., 115, B09215, https://doi.org/10.1029/2010JB007480,
2010.
Martin, R. S., Ilyinskaya, E., and Oppenheimer, C.: The enigma of reactive
nitrogen in volcanic emissions, Geochim. Cosmochim. Ac., 95,
93–105, https://doi.org/10.1016/j.gca.2012.07.027, 2012.
Mather, T. A., Pyle, D. M., and Oppenheimer, C.: Tropospheric Volcanic
Aerosol, in: Volcanism and the Earth's Atmosphere, edited by: Robock, A and
Oppenheimer, C., Wiley, Washington, D.C., USA, 189–212,
https://doi.org/10.1029/139GM12, 2013.
McBirney, A. R.: The Nicaraguan volcano Masaya and its caldera,
Eos Trans. AGU, 37, 83–96,
https://doi.org/10.1029/TR037i001p00083, 1956.
McGonigle, A. J. S., Delmelle, P., Oppenheimer, C., Tsanev, V. I., Delfosse,
T., Williams-Jones, G., Horton, K., and Mather, T. A.: SO2 depletion in
tropospheric volcanic plumes, Geophys. Res. Lett., 31, L13201,
https://doi.org/10.1029/2004GL019990, 2004.
Noguchi, K. and Kamiya, H.: Prediction of volcanic eruption by measuring the
chemical composition and amounts of gases, B. Volcanol., 26,
367–378, https://doi.org/10.1007/BF02597298, 1963.
O'Dowd, C. D., Jimenez, J. L., Bahreini, R., Flagan, R. C., Seinfeld, J. H.,
Hämeri, K., Pirjola, L., Kulmala, M., Jennings, S. G., and Hoffmann, T.:
Marine aerosol formation from biogenic iodine emissions, Nature, 417, 632,
https://doi.org/10.1038/nature00775, 2002.
Oppenheimer, C., Tsanev, V. I., Braban, C. F., Cox, R. A., Adams, J. W.,
Aiuppa, A., Bobrowski, N., Delmelle, P., Barclay, J., and McGonigle, A.
J. S.: BrO formation in volcanic plumes, Geochim. Cosmochim. Ac., 70,
2935–2941, https://doi.org/10.1016/j.gca.2006.04.001, 2006.
Oppenheimer, C., Kyle, P., Eisele, F., Crawford, J., Huey, G., Tanner, D.,
Kim, S., Mauldin, L., Blake, D., Beyersdorf, A., Buhr, M., and Davis, D.:
Atmospheric chemistry of an Antarctic volcanic plume, J. Geophys.
Res., 115, 5473, https://doi.org/10.1029/2009JD011910, 2010.
Platt, U. and Bobrowski, N.: Quantification of volcanic reactive halogen
emissions, in: Volcanism and global environmental change, edited by: Schmidt, A.,
Fristad, K., and Elkins-Tanton, L. T., Cambridge University Press,
Cambridge, UK, 115–132, 2015.
Platt, U. and Stutz, J.: Differential absorption spectroscopy, in:
Differential Optical Absorption Spectroscopy, Springer, Berlin and Heidelberg, Germany, 135–174, 2008.
Pyle, D. M. and Mather, T. A.: Halogens in igneous processes and their
fluxes to the atmosphere and oceans from volcanic activity: A review,
Chem. Geol., 263, 110–121, https://doi.org/10.1016/j.chemgeo.2008.11.013, 2009.
Roberts, T.: Ozone Depletion in Tropospheric Volcanic Plumes: From
Halogen-Poor to Halogen-Rich Emissions, Geosciences, 8, 68,
https://doi.org/10.3390/geosciences8020068, 2018.
Roberts, T. J., Braban, C. F., Martin, R. S., Oppenheimer, C., Adams, J. W.,
Cox, R. A., Jones, R. L., and Griffiths, P. T.: Modelling reactive halogen
formation and ozone depletion in volcanic plumes, Chem. Geol., 263,
151–163, https://doi.org/10.1016/j.chemgeo.2008.11.012, 2009.
Roberts, T. J., Martin, R. S., and Jourdain, L.: Reactive bromine chemistry in Mount Etna's volcanic plume: the influence of total Br, high-temperature processing, aerosol loading and plume–air mixing, Atmos. Chem. Phys., 14, 11201–11219, https://doi.org/10.5194/acp-14-11201-2014, 2014.
Roberts, T. J., Vignelles, D., Liuzzo, M., Giudice, G., Aiuppa, A.,
Coltelli, M., Salerno, G., Chartier, M., Couté, B., Berthet, G., Lurton,
T., Dulac, F., and Renard, J.-B.: The primary volcanic aerosol emission from
Mt Etna: Size-resolved particles with SO2 and role in plume reactive
halogen chemistry, Geochim. Cosmochim. Ac., 222, 74–93,
https://doi.org/10.1016/j.gca.2017.09.040, 2018.
Roberts, T. J., Dayma, G., and Oppenheimer, C.: Reaction Rates Control
High-Temperature Chemistry of Volcanic Gases in Air, Front. Earth Sci., 7,
1441, https://doi.org/10.3389/feart.2019.00154, 2019.
Rose, W. I., Millard, G. A., Mather, T. A., Hunton, D. E., Anderson, B.,
Oppenheimer, C., Thornton, B. F., Gerlach, T. M., Viggiano, A. A., Kondo,
Y., Miller, T. M., and Ballenthin, J. O.: Atmospheric chemistry of a 33–34
hour old volcanic cloud from Hekla Volcano (Iceland): Insights from direct
sampling and the application of chemical box modeling, J.
Geophys. Res., 111, Q08008, https://doi.org/10.1029/2005JD006872, 2006.
Rüdiger, J., Bobrowski, N., Liotta, M., and Hoffmann, T.: Development
and application of a sampling method for the determination of reactive
halogen species in volcanic gas emissions, Anal. Bioanal.
Chem., 52, 325, https://doi.org/10.1007/s00216-017-0525-1, 2017.
Rüdiger, J., Tirpitz, J.-L., de Moor, J. M., Bobrowski, N., Gutmann, A., Liuzzo, M., Ibarra, M., and Hoffmann, T.: Implementation of electrochemical, optical and denuder-based sensors and sampling techniques on UAV for volcanic gas measurements: examples from Masaya, Turrialba and Stromboli volcanoes, Atmos. Meas. Tech., 11, 2441–2457, https://doi.org/10.5194/amt-11-2441-2018, 2018.
Saiz-Lopez, A. and von Glasow, R.: Reactive halogen chemistry in the
troposphere, Chem. Soc. Rev., 41, 6448–6472,
https://doi.org/10.1039/c2cs35208g, 2012.
Saiz-Lopez, A., Plane, J. M. C., Baker, A. R., Carpenter, L. J., Glasow, R.
V., Martín, J. C. G., McFiggans, G., and Saunders, R. W.: Atmospheric
chemistry of iodine, Chem. Rev., 112, 1773–1804,
https://doi.org/10.1021/cr200029u, 2012.
Sander, R., Baumgaertner, A., Gromov, S., Harder, H., Jöckel, P., Kerkweg, A., Kubistin, D., Regelin, E., Riede, H., Sandu, A., Taraborrelli, D., Tost, H., and Xie, Z.-Q.: The atmospheric chemistry box model CAABA/MECCA-3.0, Geosci. Model Dev., 4, 373–380, https://doi.org/10.5194/gmd-4-373-2011, 2011.
Sander, R., Jöckel, P., Kirner, O., Kunert, A. T., Landgraf, J., and Pozzer, A.: The photolysis module JVAL-14, compatible with the MESSy standard, and the JVal PreProcessor (JVPP), Geosci. Model Dev., 7, 2653–2662, https://doi.org/10.5194/gmd-7-2653-2014, 2014.
Schönhardt, A., Richter, A., Theys, N., and Burrows, J. P.: Space-based observation of volcanic iodine monoxide, Atmos. Chem. Phys., 17, 4857–4870, https://doi.org/10.5194/acp-17-4857-2017, 2017.
Shinohara, H.: A new technique to estimate volcanic gas composition: Plume
measurements with a portable multi-sensor system, J. Volcanol.
Geoth. Res., 143, 319–333, https://doi.org/10.1016/j.jvolgeores.2004.12.004,
2005.
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.
Stix, J., de Moor, J. M., Rüdiger, J., Alan, A., Corrales, E.,
D'Arcy, F., Diaz, J. A., and Liotta, M.: Using Drones and Miniaturized
Instrumentation to Study Degassing at Turrialba and Masaya Volcanoes,
Central America, J. Geophys. Res.-Sol. Ea., 123, 6501–6520,
https://doi.org/10.1029/2018JB015655, 2018.
Surl, L., Donohoue, D., Aiuppa, A., Bobrowski, N., and von Glasow, R.: Quantification of the depletion of ozone in the plume of Mount Etna, Atmos. Chem. Phys., 15, 2613–2628, https://doi.org/10.5194/acp-15-2613-2015, 2015.
Symonds, R. B., Rose, W. I., Bluth, G. J. S., and Gerlach, T. M.:
Volcanic-gas studies; methods, results, and applications, Rev.
Mineral. Geochem., 30, 1–66, 1994.
Theys, N., van Roozendael, M., Dils, B., Hendrick, F., Hao, N., and
de Mazière, M.: First satellite detection of volcanic bromine monoxide
emission after the Kasatochi eruption, Geophys. Res. Lett., 36, L03809,
https://doi.org/10.1029/2008GL036552, 2009.
Theys, N., de Smedt, I., van Roozendael, M., Froidevaux, L., Clarisse, L.,
and Hendrick, F.: First satellite detection of volcanic OClO after the
eruption of Puyehue-Cordón Caulle, Geophys. Res. Lett., 41,
667–672, https://doi.org/10.1002/2013GL058416, 2014.
van Manen, S. M.: Perception of a chronic volcanic hazard: Persistent
degassing at Masaya volcano, Nicaragua, J. Appl. Volcanol., 3, 155,
https://doi.org/10.1186/s13617-014-0009-3, 2014.
Vogel, L.: Volcanic plumes: Evaluation of spectroscopic measurements, early
detection, and bromine chemistry, Heidelberg University Library, Heidelberg, Germany, 2012.
von Glasow, R.: Atmospheric chemistry in volcanic plumes, P.
Natl. Acad. Sci. USA, 107,
6594–6599, https://doi.org/10.1073/pnas.0913164107, 2010.
von Glasow, R., Bobrowski, N., and Kern, C.: The effects of volcanic
eruptions on atmospheric chemistry, Chem. Geol., 263, 131–142,
https://doi.org/10.1016/j.chemgeo.2008.08.020, 2009.
Warnach, S., Bobrowski, N., Hidalgo, S., Arellano, S., Sihler, H., Dinger, F., Lübcke, P., Battaglia, J., Steele, A., Galle, B., Platt, U., and Wagner, T.: Variation of the BrO
Wennberg, P.: Atmospheric chemistry: Bromine explosion, Nature, 397,
299–301, 1999.
Witt, M. L. I., Mather, T. A., Pyle, D. M., Aiuppa, A., Bagnato, E., and
Tsanev, V. I.: Mercury and halogen emissions from Masaya and Telica
volcanoes, Nicaragua, J. Geophys. Res., 113, B06203,
https://doi.org/10.1029/2007JB005401, 2008.
Wittmer, J., Bobrowski, N., Liotta, M., Giuffrida, G., Calabrese, S., and
Platt, U.: Active alkaline traps to determine acidic-gas ratios in volcanic
plumes: Sampling techniques and analytical methods, Geochem.
Geophy. Geosy., 15, 2797–2820, https://doi.org/10.1002/2013GC005133, 2014.
Short summary
We present an innovative approach to study halogen chemistry in the plume of Masaya volcano in Nicaragua. An unique data set was collected using multiple techniques, including drones. These data enabled us to determine the fraction of activation of the respective halogens at various plume ages, where in-mixing of ambient air causes chemical reactions. An atmospheric chemistry box model was employed to further examine the field results and help our understanding of volcanic plume chemistry.
We present an innovative approach to study halogen chemistry in the plume of Masaya volcano in...
Altmetrics
Final-revised paper
Preprint