Articles | Volume 18, issue 19
https://doi.org/10.5194/acp-18-13787-2018
© Author(s) 2018. 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-18-13787-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
01 Oct 2018
Research article |
| 01 Oct 2018
| 01 Oct 2018
Characterization of trace gas emissions at an intermediate port
Department of Environmental Science, Saint Mary's University, Halifax, Canada
Department of Astronomy and Physics, Saint Mary's University, Halifax, Canada
Li Li
Department of Environmental Science, Saint Mary's University, Halifax, Canada
Keane Tobin
Department of Environmental Science, Saint Mary's University, Halifax, Canada
Morgan Mitchell
Department of Environmental Science, Saint Mary's University, Halifax, Canada
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Shoma Yamanouchi, Stephanie Conway, Kimberly Strong, Orfeo Colebatch, Erik Lutsch, Sébastien Roche, Jeffrey Taylor, Cynthia H. Whaley, and Aldona Wiacek
Earth Syst. Sci. Data, 15, 3387–3418, https://doi.org/10.5194/essd-15-3387-2023, https://doi.org/10.5194/essd-15-3387-2023, 2023
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Nineteen years of atmospheric composition measurements made at the University of Toronto Atmospheric Observatory (TAO; 43.66° N, 79.40° W; 174 m.a.s.l.) are presented. These are retrieved from Fourier transform infrared (FTIR) solar absorption spectra recorded with a spectrometer from May 2002 to December 2020. The retrievals have been optimized for fourteen species: O3, HCl, HF, HNO3, CH4, C2H6, CO, HCN, N2O, C2H2, H2CO, CH3OH, HCOOH, and NH3.
Ian Ashpole and Aldona Wiacek
Atmos. Meas. Tech., 16, 1923–1949, https://doi.org/10.5194/amt-16-1923-2023, https://doi.org/10.5194/amt-16-1923-2023, 2023
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The MOPITT instrument has been measuring atmospheric carbon monoxide (CO) from space since 2000. Its data products are valuable for CO trend analysis. This paper compares products with different spatial resolutions to identify discrepancies in mean CO amounts and detectable trends for coastal grid boxes. It is found that CO amounts and trends differ significantly between data products for a large number of these grid boxes, essentially due to how the coarser-resolution products are created.
Ian Ashpole and Aldona Wiacek
Atmos. Meas. Tech., 13, 3521–3542, https://doi.org/10.5194/amt-13-3521-2020, https://doi.org/10.5194/amt-13-3521-2020, 2020
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We analyse temporal trends in carbon monoxide (CO) detected by the MOPITT satellite instrument over the coastal city of Halifax, Canada. We show that trends in surface level CO differ significantly depending on the data product used (Level 2 or Level 3). This is linked to the different sensitivity with which MOPITT can detect CO at the surface over land and water as well as the differing degree to which the data can be filtered to account for this in the different products.
A. Wiacek, R. V. Martin, A. E. Bourassa, N. D. Lloyd, and D. A. Degenstein
Atmos. Meas. Tech., 6, 2761–2776, https://doi.org/10.5194/amt-6-2761-2013, https://doi.org/10.5194/amt-6-2761-2013, 2013
Shoma Yamanouchi, Stephanie Conway, Kimberly Strong, Orfeo Colebatch, Erik Lutsch, Sébastien Roche, Jeffrey Taylor, Cynthia H. Whaley, and Aldona Wiacek
Earth Syst. Sci. Data, 15, 3387–3418, https://doi.org/10.5194/essd-15-3387-2023, https://doi.org/10.5194/essd-15-3387-2023, 2023
Short summary
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Nineteen years of atmospheric composition measurements made at the University of Toronto Atmospheric Observatory (TAO; 43.66° N, 79.40° W; 174 m.a.s.l.) are presented. These are retrieved from Fourier transform infrared (FTIR) solar absorption spectra recorded with a spectrometer from May 2002 to December 2020. The retrievals have been optimized for fourteen species: O3, HCl, HF, HNO3, CH4, C2H6, CO, HCN, N2O, C2H2, H2CO, CH3OH, HCOOH, and NH3.
Ian Ashpole and Aldona Wiacek
Atmos. Meas. Tech., 16, 1923–1949, https://doi.org/10.5194/amt-16-1923-2023, https://doi.org/10.5194/amt-16-1923-2023, 2023
Short summary
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The MOPITT instrument has been measuring atmospheric carbon monoxide (CO) from space since 2000. Its data products are valuable for CO trend analysis. This paper compares products with different spatial resolutions to identify discrepancies in mean CO amounts and detectable trends for coastal grid boxes. It is found that CO amounts and trends differ significantly between data products for a large number of these grid boxes, essentially due to how the coarser-resolution products are created.
Ian Ashpole and Aldona Wiacek
Atmos. Meas. Tech., 13, 3521–3542, https://doi.org/10.5194/amt-13-3521-2020, https://doi.org/10.5194/amt-13-3521-2020, 2020
Short summary
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We analyse temporal trends in carbon monoxide (CO) detected by the MOPITT satellite instrument over the coastal city of Halifax, Canada. We show that trends in surface level CO differ significantly depending on the data product used (Level 2 or Level 3). This is linked to the different sensitivity with which MOPITT can detect CO at the surface over land and water as well as the differing degree to which the data can be filtered to account for this in the different products.
A. Wiacek, R. V. Martin, A. E. Bourassa, N. D. Lloyd, and D. A. Degenstein
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Related subject area
Subject: Gases | Research Activity: Remote Sensing | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
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Examining TROPOMI formaldehyde to nitrogen dioxide ratios in the Lake Michigan region: implications for ozone exceedances
Impact of different sources of precursors on an ozone pollution outbreak over Europe analysed with IASI+GOME2 multispectral satellite observations and model simulations
Monitoring and quantifying CO2 emissions of isolated power plants from space
Technical note: Constraining the hydroxyl (OH) radical in the tropics with satellite observations of its drivers – first steps toward assessing the feasibility of a global observation strategy
Significant contribution of inland ships to the total NOx emissions along the Yangtze River
Characteristics of interannual variability in space-based XCO2 global observations
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Methane emissions are predominantly responsible for record-breaking atmospheric methane growth rates in 2020 and 2021
Ground solar absorption observations of total column CO, CO2, CH4, and aerosol optical depth from California's Sequoia Lightning Complex Fire: emission factors and modified combustion efficiency at regional scales
Potential of TROPOMI for understanding spatio-temporal variations in surface NO2 and their dependencies upon land use over the Iberian Peninsula
Nitrogen oxides emissions from selected cities in North America, Europe, and East Asia observed by TROPOMI before and after the COVID-19 pandemic
Mobile MAX-DOAS observations of tropospheric NO2 and HCHO during summer over the Three Rivers' Source region in China
Investigation of meteorological conditions and BrO during Ozone Depletion Events in Ny-Ålesund between 2010 and 2021
Estimating enhancement ratios of nitrogen dioxide, carbon monoxide and carbon dioxide using satellite observations
Source mechanisms and transport patterns of tropospheric bromine monoxide: findings from long-term multi-axis differential optical absorption spectroscopy measurements at two Antarctic stations
Measurement report: Spatiotemporal variability of peroxy acyl nitrates (PANs) over Mexico City from TES and CrIS satellite measurements
Biomass burning CO, PM and fuel consumption per unit burned area estimates derived across Africa using geostationary SEVIRI fire radiative power and Sentinel-5P CO data
Characterization of errors in satellite-based HCHO ∕ NO2 tropospheric column ratios with respect to chemistry, column-to-PBL translation, spatial representation, and retrieval uncertainties
Quantification of carbon monoxide emissions from African cities using TROPOMI
Evaluation of transport processes over North China Plain and Yangtze River Delta using MAX-DOAS observations
Estimation of biomass burning emission of NO2 and CO from 2019–2020 Australia fires based on satellite observations
Quantifying daily NOx and CO2 emissions from Wuhan using satellite observations from TROPOMI and OCO-2
Estimation of OH in urban plumes using TROPOMI-inferred NO2 ∕ CO
Diagnosing ozone–NOx–VOC sensitivity and revealing causes of ozone increases in China based on 2013–2021 satellite retrievals
Satellite measurements of plumes from the 2021 eruption of La Soufrière, St Vincent
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Measurement report: Evolution and distribution of NH3 over Mexico City from ground-based and satellite infrared spectroscopic measurements
Peculiar COVID-19 effects in the Greater Tokyo Area revealed by spatiotemporal variabilities of tropospheric gases and light-absorbing aerosols
Quantifying NOx emissions in Egypt using TROPOMI observations
Satellite quantification of oil and natural gas methane emissions in the US and Canada including contributions from individual basins
Evaluating NOx emissions and their effect on O3 production in Texas using TROPOMI NO2 and HCHO
Investigating the global OH radical distribution using steady-state approximations and satellite data
Air quality impacts of COVID-19 lockdown measures detected from space using high spatial resolution observations of multiple trace gases from Sentinel-5P/TROPOMI
Quantifying methane emissions from the global scale down to point sources using satellite observations of atmospheric methane
Influence of convection on the upper-tropospheric O3 and NOx budget in southeastern China
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Xiumei Zhang, Ronald van der A, Jieying Ding, Xin Zhang, and Yan Yin
Atmos. Chem. Phys., 23, 5587–5604, https://doi.org/10.5194/acp-23-5587-2023, https://doi.org/10.5194/acp-23-5587-2023, 2023
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Yifan Guan, Gretchen Keppel-Aleks, Scott C. Doney, Christof Petri, Dave Pollard, Debra Wunch, Frank Hase, Hirofumi Ohyama, Isamu Morino, Justus Notholt, Kei Shiomi, Kim Strong, Rigel Kivi, Matthias Buschmann, Nicholas Deutscher, Paul Wennberg, Ralf Sussmann, Voltaire A. Velazco, and Yao Té
Atmos. Chem. Phys., 23, 5355–5372, https://doi.org/10.5194/acp-23-5355-2023, https://doi.org/10.5194/acp-23-5355-2023, 2023
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We characterize spatial–temporal patterns of interannual variability (IAV) in atmospheric CO2 based on NASA’s Orbiting Carbon Observatory-2 (OCO-2). CO2 variation is strongly impacted by climate events, with higher anomalies during El Nino years. We show high correlation in IAV between space-based and ground-based CO2 from long-term sites. Because OCO-2 has near-global coverage, our paper provides a roadmap to study IAV where in situ observation is sparse, such as open oceans and remote lands.
Yuchen Wang, Xvli Guo, Yajie Huo, Mengying Li, Yuqing Pan, Shaocai Yu, Alexander Baklanov, Daniel Rosenfeld, John H. Seinfeld, and Pengfei Li
Atmos. Chem. Phys., 23, 5233–5249, https://doi.org/10.5194/acp-23-5233-2023, https://doi.org/10.5194/acp-23-5233-2023, 2023
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Substantial advances have been made in recent years toward detecting and quantifying methane super-emitters from space. However, such advances have rarely been expanded to measure the global methane pledge because large-scale swaths and high-resolution sampling have not been coordinated. Here we present a versatile spaceborne architecture that can juggle planet-scale and plant-level methane retrievals, challenge official emission reports, and remain relevant for stereoscopic measurements.
Liang Feng, Paul I. Palmer, Robert J. Parker, Mark F. Lunt, and Hartmut Bösch
Atmos. Chem. Phys., 23, 4863–4880, https://doi.org/10.5194/acp-23-4863-2023, https://doi.org/10.5194/acp-23-4863-2023, 2023
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Our understanding of recent changes in atmospheric methane has defied explanation. Since 2007, the atmospheric growth of methane has accelerated to record-breaking values in 2020 and 2021. We use satellite observations of methane to show that (1) increasing emissions over the tropics are mostly responsible for these recent atmospheric changes, and (2) changes in the OH sink during the 2020 Covid-19 lockdown can explain up to 34% of changes in atmospheric methane for that year.
Isis Frausto-Vicencio, Sajjan Heerah, Aaron G. Meyer, Harrison A. Parker, Manvendra Dubey, and Francesca M. Hopkins
Atmos. Chem. Phys., 23, 4521–4543, https://doi.org/10.5194/acp-23-4521-2023, https://doi.org/10.5194/acp-23-4521-2023, 2023
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Wildfires are increasing in the western USA, making it critical to understand the impacts of greenhouse gases and air pollutants on the atmosphere. We used a ground-based remote sensing technique to measure the greenhouse gases and aerosol in the atmosphere. We isolate a large smoke plume from a nearby wildfire and calculate variables to understand the fuel properties and combustion phases. We find that a significant amount of methane is emitted from the 2020 California wildfire season.
Hervé Petetin, Marc Guevara, Steven Compernolle, Dene Bowdalo, Pierre-Antoine Bretonnière, Santiago Enciso, Oriol Jorba, Franco Lopez, Albert Soret, and Carlos Pérez García-Pando
Atmos. Chem. Phys., 23, 3905–3935, https://doi.org/10.5194/acp-23-3905-2023, https://doi.org/10.5194/acp-23-3905-2023, 2023
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This study analyses the potential of the TROPOMI space sensor for monitoring the variability of NO2 pollution over the Iberian Peninsula. A reduction of NO2 levels is observed during the weekend and in summer, especially over most urbanized areas, in agreement with surface observations. An enhancement of NO2 is found during summer with TROPOMI over croplands, potentially related to natural soil NO emissions, which illustrates the outstanding value of TROPOMI for complementing surface networks.
Chantelle R. Lonsdale and Kang Sun
EGUsphere, https://doi.org/10.5194/egusphere-2023-346, https://doi.org/10.5194/egusphere-2023-346, 2023
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The COVID-19 pandemic, which was caused by the SARS-CoV-2 virus emerged in 2019 and its still evolving variants, has resulted in unprecedented shifts in human activities and anthropogenic emissions to the Earth's atmosphere. We present monthly nitrogen oxides emissions over three major continents from May 2018 to January 2023 to capture variations before and after the COVID-19 pandemic. We focus on a diverse collection of 54 cities to quantify the COVID-19-induced perturbations.
Siyang Cheng, Xinghong Cheng, Jianzhong Ma, Xiangde Xu, Wenqian Zhang, Jinguang Lv, Gang Bai, Bing Chen, Siying Ma, Steffen Ziegler, Sebastian Donner, and Thomas Wagner
Atmos. Chem. Phys., 23, 3655–3677, https://doi.org/10.5194/acp-23-3655-2023, https://doi.org/10.5194/acp-23-3655-2023, 2023
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We made mobile MAX-DOAS measurements in the background atmosphere over the Tibetan Plateau in summer 2021. We retrieved the tropospheric NO2 and HCHO vertical column densities (VCDs) along extended driving routes and found a decreasing trend of the VCDs with altitude. Elevated NO2 VCDs along the driving routes could be attributed to enhanced traffic emissions from the towns crossed. The spatio-temporal distribution of the HCHO VCDs correlated strongly with the surface temperature.
Bianca Zilker, Andreas Richter, Anne-Marlene Blechschmidt, Peter von der Gathen, Ilias Bougoudis, Sora Seo, Tim Bösch, and John Philip Burrows
EGUsphere, https://doi.org/10.5194/egusphere-2023-522, https://doi.org/10.5194/egusphere-2023-522, 2023
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During Arctic spring, near-surface ozone is depleted by bromine released from salty sea ice and/or snow covered areas under certain meteorological conditions. To study this ozone depletion and the prevailing meteorological conditions, two ozone data sets from Ny-Ålesund, Svalbard have been evaluated. We found, that during ozone depletion events, lower pressure over the Barents Sea and higher pressure in the Icelandic low area lead to a transport of cold polar air from the north to Ny-Ålesund.
Cameron G. MacDonald, Jon-Paul Mastrogiacomo, Joshua L. Laughner, Jacob K. Hedelius, Ray Nassar, and Debra Wunch
Atmos. Chem. Phys., 23, 3493–3516, https://doi.org/10.5194/acp-23-3493-2023, https://doi.org/10.5194/acp-23-3493-2023, 2023
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We use three satellites measuring carbon dioxide (CO2), carbon monoxide (CO) and nitrogen dioxide (NO2) to calculate atmospheric enhancements of these gases from 27 urban areas. We calculate enhancement ratios between the species and compare those to ratios derived from four globally gridded anthropogenic emission inventories. We find that the global inventories generally underestimate CO emissions in many North American and European cities relative to our observed enhancement ratios.
Udo Frieß, Karin Kreher, Richard Querel, Holger Schmithüsen, Dan Smale, Rolf Weller, and Ulrich Platt
Atmos. Chem. Phys., 23, 3207–3232, https://doi.org/10.5194/acp-23-3207-2023, https://doi.org/10.5194/acp-23-3207-2023, 2023
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Reactive bromine compounds, emitted by the sea ice during polar spring, play an important role in the atmospheric chemistry of the coastal regions of Antarctica. We investigate the sources and impacts of reactive bromine in detail using many years of measurements at two Antarctic sites located at opposite sides of the Antarctic continent. Using a multitude of meteorological observations, we were able to identify the main triggers and source regions for reactive bromine in Antarctica.
Madison J. Shogrin, Vivienne H. Payne, Susan S. Kulawik, Kazuyuki Miyazaki, and Emily V. Fischer
Atmos. Chem. Phys., 23, 2667–2682, https://doi.org/10.5194/acp-23-2667-2023, https://doi.org/10.5194/acp-23-2667-2023, 2023
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We evaluate the spatiotemporal variability of peroxy acyl nitrates (PANs), important photochemical pollutants, over Mexico City using satellite observations. PANs exhibit a seasonal cycle that maximizes in spring. Wildfires contribute to observed interannual variability, and the satellite indicates several areas of frequent outflow. Recent changes in NOx emissions are not accompanied by changes in PANs. This work demonstrates analysis approaches that can be applied to other megacities.
Hannah M. Nguyen, Jiangping He, and Martin J. Wooster
Atmos. Chem. Phys., 23, 2089–2118, https://doi.org/10.5194/acp-23-2089-2023, https://doi.org/10.5194/acp-23-2089-2023, 2023
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This work presents novel advances in the estimation of open biomass burning emissions via the first fully "top-down" approach to exploit satellite-derived observations of fire radiative power and carbon monoxide over Africa. We produce a 16-year record of fire-generated CO emissions and dry matter consumed per unit area for Africa and evaluate these emissions estimates through their use in an atmospheric model, whose simulation output is then compared to independent satellite observations of CO.
Amir H. Souri, Matthew S. Johnson, Glenn M. Wolfe, James H. Crawford, Alan Fried, Armin Wisthaler, William H. Brune, Donald R. Blake, Andrew J. Weinheimer, Tijl Verhoelst, Steven Compernolle, Gaia Pinardi, Corinne Vigouroux, Bavo Langerock, Sungyeon Choi, Lok Lamsal, Lei Zhu, Shuai Sun, Ronald C. Cohen, Kyung-Eun Min, Changmin Cho, Sajeev Philip, Xiong Liu, and Kelly Chance
Atmos. Chem. Phys., 23, 1963–1986, https://doi.org/10.5194/acp-23-1963-2023, https://doi.org/10.5194/acp-23-1963-2023, 2023
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We have rigorously characterized different sources of error in satellite-based HCHO / NO2 tropospheric columns, a widely used metric for diagnosing near-surface ozone sensitivity. Specifically, the errors were categorized/quantified into (i) an inherent chemistry error, (ii) the decoupled relationship between columns and the near-surface concentration, (iii) the spatial representativeness error of ground satellite pixels, and (iv) the satellite retrieval errors.
Gijs Leguijt, Joannes D. Maasakkers, Hugo A. C. Denier van der Gon, Arjo J. Segers, Tobias Borsdorff, and Ilse Aben
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2023-35, https://doi.org/10.5194/acp-2023-35, 2023
Revised manuscript accepted for ACP
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We present a fast method to evaluate carbon monoxide emissions from cities in Africa. Carbon monoxide is important for climate change in an indirect way as it is linked to ozone, methane and carbon dioxide. Our measurements are made with a satellite that sees the entire globe every single day. This means that we can check from space whether the current knowledge of emission rates is up to date. We make the comparison and show that the emission rates in northern Africa are underestimated.
Yuhang Song, Chengzhi Xing, Cheng Liu, Jinan Lin, Hongyu Wu, Ting Liu, Hua Lin, Chengxin Zhang, Wei Tan, Xiangguang Ji, Haoran Liu, and Qihua Li
Atmos. Chem. Phys., 23, 1803–1824, https://doi.org/10.5194/acp-23-1803-2023, https://doi.org/10.5194/acp-23-1803-2023, 2023
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Using the MAX-DOAS network, we successfully analyzed three typical transport types (regional, dust, and transboundary long-range transport), emphasizing the unique advantages provided by the network in monitoring pollutant transport. We think that our findings provide the public with a thorough understanding of pollutant transport phenomena and a reference for designing collaborative air pollution control strategies.
Nenghan Wan, Xiaozhen Xiong, Gerard J. Kluitenberg, J. M. Shawn Hutchinson, Robert Aiken, Haidong Zhao, and Xiaomao Lin
Atmos. Chem. Phys., 23, 711–724, https://doi.org/10.5194/acp-23-711-2023, https://doi.org/10.5194/acp-23-711-2023, 2023
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This study used new TROPOMI measurements of NO2 and CO to characterize regional biomass burning characteristics and efficiency. We found that the NO2 / CO emission ratio was consistent with recent studies over temperate forest fires but slightly lower in savanna vegetation fires. Our results can help identify the relative contribution of smoldering and flaming activities as well as their impacts on the regional atmospheric composition and air quality.
Qianqian Zhang, K. Folkert Boersma, Bin Zhao, Henk Eskes, Cuihong Chen, Haotian Zheng, and Xingying Zhang
Atmos. Chem. Phys., 23, 551–563, https://doi.org/10.5194/acp-23-551-2023, https://doi.org/10.5194/acp-23-551-2023, 2023
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We developed an improved superposition column model and used the latest released (v2.3.1) TROPOMI satellite NO2 observations to estimate daily city-scale NOx and CO2 emissions. The results are verified against bottom-up emissions and OCO-2 XCO2 observations. We obtained the day-to-day variation of city NOx and CO2 emissions, allowing policymakers to gain real-time information on spatial–temporal emission patterns and the effectiveness of carbon and nitrogen regulation in urban environments.
Srijana Lama, Sander Houweling, K. Folkert Boersma, Ilse Aben, Hugo A. C. Denier van der Gon, and Maarten C. Krol
Atmos. Chem. Phys., 22, 16053–16071, https://doi.org/10.5194/acp-22-16053-2022, https://doi.org/10.5194/acp-22-16053-2022, 2022
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Hydroxyl radical (OH) is the important chemical species that determines the lifetime of some greenhouse gases and trace gases. OH plays a vital role in air pollution chemistry. OH has a short lifetime and is extremely difficult to measure directly. OH concentrations derived from the chemistry transport model (CTM) have uncertainties of >50 %. Therefore, in this study, OH is derived indirectly using satellite date in urban plumes.
Jie Ren, Fangfang Guo, and Shaodong Xie
Atmos. Chem. Phys., 22, 15035–15047, https://doi.org/10.5194/acp-22-15035-2022, https://doi.org/10.5194/acp-22-15035-2022, 2022
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O3–NOx–VOC sensitivity in China is diagnosed by deriving regional satellite HCHO / NO2 thresholds between O3 production regimes. VOC-limited regimes are found widely over megacity clusters and developed cities. VOCs and NOx emissions are tracked with satellite HCHO and NO2 to evaluate O3 responses to precursors changes. The significant reduction in NOx emissions without effective VOC control since the Clean Air Action Plan in 2013 is responsible for the increase in O3 concentrations in China.
Isabelle A. Taylor, Roy G. Grainger, Andrew T. Prata, Simon R. Proud, Tamsin A. Mather, and David M. Pyle
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2022-772, https://doi.org/10.5194/acp-2022-772, 2022
Revised manuscript accepted for ACP
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This study looks at sulfur dioxide (SO2) and ash emissions from the 2021 eruption of La Soufrière on St Vinent. Using satellite data, 32 eruptive events were identified. Satellite data was used to track SO2 as it was transported around the globe. The majority of SO2 was emitted into the upper troposphere and lower stratosphere. Similarities with the 1979 eruption of La Soufrière highlight the value of studying these eruptions to be better prepared for future eruptions.
Dien Wu, Junjie Liu, Paul O. Wennberg, Paul I. Palmer, Robert R. Nelson, Matthäus Kiel, and Annmarie Eldering
Atmos. Chem. Phys., 22, 14547–14570, https://doi.org/10.5194/acp-22-14547-2022, https://doi.org/10.5194/acp-22-14547-2022, 2022
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Prior studies have derived the combustion efficiency for a region/city using observed CO2 and CO. We further zoomed into the urban domain and accounted for factors affecting the calculation of spatially resolved combustion efficiency from two satellites. The intra-city variability in combustion efficiency was linked to heavy industry within Shanghai and LA without relying on emission inventories. Such an approach can be applied when analyzing data from future geostationary satellites.
Beatriz Herrera, Alejandro Bezanilla, Thomas Blumenstock, Enrico Dammers, Frank Hase, Lieven Clarisse, Adolfo Magaldi, Claudia Rivera, Wolfgang Stremme, Kimberly Strong, Camille Viatte, Martin Van Damme, and Michel Grutter
Atmos. Chem. Phys., 22, 14119–14132, https://doi.org/10.5194/acp-22-14119-2022, https://doi.org/10.5194/acp-22-14119-2022, 2022
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This work investigates atmospheric ammonia (NH3), a key trace gas with consequences for the environment and human health, in Mexico City. The results from the ground-based and satellite instruments show the variability and spatial distribution of NH3 over this region. NH3 in Mexico City has been increasing for the past 10 years and most of its sources are urban. This work contributes to a better understanding of NH3 sources and variability in urban and remote areas.
Alessandro Damiani, Hitoshi Irie, Dmitry A. Belikov, Shuei Kaizuka, Hossain Mohammed Syedul Hoque, and Raul R. Cordero
Atmos. Chem. Phys., 22, 12705–12726, https://doi.org/10.5194/acp-22-12705-2022, https://doi.org/10.5194/acp-22-12705-2022, 2022
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We analyzed the variabilities in tropospheric gases and aerosols within the Greater Tokyo Area, Japan. Beyond highlighting air quality changes caused by the pandemic during the lockdown, we found that the degree of weekly cycling of most gases and aerosols was enhanced during the whole of 2020. The changes were unprecedented in recent years and potentially related to coincident reduced mobility in Japan, which, in contrast to other countries, was anomalously low on weekends in 2020.
Anthony Rey-Pommier, Frédéric Chevallier, Philippe Ciais, Grégoire Broquet, Theodoros Christoudias, Jonilda Kushta, Didier Hauglustaine, and Jean Sciare
Atmos. Chem. Phys., 22, 11505–11527, https://doi.org/10.5194/acp-22-11505-2022, https://doi.org/10.5194/acp-22-11505-2022, 2022
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Emission inventories for air pollutants can be uncertain in developing countries. In order to overcome these uncertainties, we model nitrogen oxide emissions in Egypt using satellite retrievals. We detect a weekly cycle reflecting Egyptian social norms, an annual cycle consistent with electricity consumption and an activity drop due to the COVID-19 pandemic. However, discrepancies with inventories remain high, illustrating the needs for additional data to improve the potential of our method.
Lu Shen, Ritesh Gautam, Mark Omara, Daniel Zavala-Araiza, Joannes D. Maasakkers, Tia R. Scarpelli, Alba Lorente, David Lyon, Jianxiong Sheng, Daniel J. Varon, Hannah Nesser, Zhen Qu, Xiao Lu, Melissa P. Sulprizio, Steven P. Hamburg, and Daniel J. Jacob
Atmos. Chem. Phys., 22, 11203–11215, https://doi.org/10.5194/acp-22-11203-2022, https://doi.org/10.5194/acp-22-11203-2022, 2022
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We use 22 months of TROPOMI satellite observations to quantity methane emissions from the oil (O) and natural gas (G) sector in the US and Canada at the scale of both individual basins as well as country-wide aggregates. We find that O/G-related methane emissions are underestimated in these inventories by 80 % for the US and 40 % for Canada, and 70 % of the underestimate in the US is from five O/G basins, including Permian, Haynesville, Anadarko, Eagle Ford, and Barnett.
Daniel L. Goldberg, Monica Harkey, Benjamin de Foy, Laura Judd, Jeremiah Johnson, Greg Yarwood, and Tracey Holloway
Atmos. Chem. Phys., 22, 10875–10900, https://doi.org/10.5194/acp-22-10875-2022, https://doi.org/10.5194/acp-22-10875-2022, 2022
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TROPOMI measurements offer a valuable means to validate emissions inventories and ozone formation regimes, with important limitations. Lightning NOx is important to account for in Texas and can contribute up to 24 % of the column NO2 in rural areas and 8 % in urban areas. Modeled NO2 in urban areas agrees with TROPOMI NO2 to within 20 % in most circumstances, with a small underestimate in Dallas (−13 %) and Houston (−20 %). Near Texas power plants, the satellite appears to underrepresent NO2.
Matilda A. Pimlott, Richard J. Pope, Brian J. Kerridge, Barry G. Latter, Diane S. Knappett, Dwayne E. Heard, Lucy J. Ventress, Richard Siddans, Wuhu Feng, and Martyn P. Chipperfield
Atmos. Chem. Phys., 22, 10467–10488, https://doi.org/10.5194/acp-22-10467-2022, https://doi.org/10.5194/acp-22-10467-2022, 2022
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We present a new method to derive global information of the hydroxyl radical (OH), an important atmospheric oxidant. OH controls the lifetime of trace gases important to air quality and climate. We use satellite observations of ozone, carbon monoxide, methane and water vapour in a simple expression to derive OH around 3–4 km altitude. The derived OH compares well to model and aircraft OH data. We then apply the method to 10 years of satellite data to study the inter-annual variability of OH.
Pieternel F. Levelt, Deborah C. Stein Zweers, Ilse Aben, Maite Bauwens, Tobias Borsdorff, Isabelle De Smedt, Henk J. Eskes, Christophe Lerot, Diego G. Loyola, Fabian Romahn, Trissevgeni Stavrakou, Nicolas Theys, Michel Van Roozendael, J. Pepijn Veefkind, and Tijl Verhoelst
Atmos. Chem. Phys., 22, 10319–10351, https://doi.org/10.5194/acp-22-10319-2022, https://doi.org/10.5194/acp-22-10319-2022, 2022
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Using the COVID-19 lockdown periods as an example, we show how Sentinel-5P/TROPOMI trace gas data (NO2, SO2, CO, HCHO and CHOCHO) can be used to understand impacts on air quality for regions and cities around the globe. We also provide information for both experienced and inexperienced users about how we created the data using state-of-the-art algorithms, where to get the data, methods taking meteorological and seasonal variability into consideration, and insights for future studies.
Daniel J. Jacob, Daniel J. Varon, Daniel H. Cusworth, Philip E. Dennison, Christian Frankenberg, Ritesh Gautam, Luis Guanter, John Kelley, Jason McKeever, Lesley E. Ott, Benjamin Poulter, Zhen Qu, Andrew K. Thorpe, John R. Worden, and Riley M. Duren
Atmos. Chem. Phys., 22, 9617–9646, https://doi.org/10.5194/acp-22-9617-2022, https://doi.org/10.5194/acp-22-9617-2022, 2022
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We review the capability of satellite observations of atmospheric methane to quantify methane emissions on all scales. We cover retrieval methods, precision requirements, inverse methods for inferring emissions, source detection thresholds, and observations of system completeness. We show that current instruments already enable quantification of regional and national emissions including contributions from large point sources. Coverage and resolution will increase significantly in coming years.
Xin Zhang, Yan Yin, Ronald van der A, Henk Eskes, Jos van Geffen, Yunyao Li, Xiang Kuang, Jeff L. Lapierre, Kui Chen, Zhongxiu Zhen, Jianlin Hu, Chuan He, Jinghua Chen, Rulin Shi, Jun Zhang, Xingrong Ye, and Hao Chen
Atmos. Chem. Phys., 22, 5925–5942, https://doi.org/10.5194/acp-22-5925-2022, https://doi.org/10.5194/acp-22-5925-2022, 2022
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The importance of convection to the ozone and nitrogen oxides (NOx) produced from lightning has long been an open question. We utilize the high-resolution chemistry model with ozonesondes and space observations to discuss the effects of convection over southeastern China, where few studies have been conducted. Our results show the transport and chemistry contributions for various storms and demonstrate the ability of TROPOMI to estimate the lightning NOx production over small-scale convection.
Juan Cuesta, Lorenzo Costantino, Matthias Beekmann, Guillaume Siour, Laurent Menut, Bertrand Bessagnet, Tony C. Landi, Gaëlle Dufour, and Maxim Eremenko
Atmos. Chem. Phys., 22, 4471–4489, https://doi.org/10.5194/acp-22-4471-2022, https://doi.org/10.5194/acp-22-4471-2022, 2022
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We present the first comprehensive study integrating satellite observations of near-surface ozone pollution, surface in situ measurements, and a chemistry-transport model for quantifying the role of anthropogenic emission reductions during the COVID-19 lockdown in spring 2020. It confirms the occurrence of a net enhancement of ozone in central Europe and a reduction elsewhere, except for some hotspots, linked with the reduction of precursor emissions from Europe and the Northern Hemisphere.
Richard J. Pope, Rebecca Kelly, Eloise A. Marais, Ailish M. Graham, Chris Wilson, Jeremy J. Harrison, Savio J. A. Moniz, Mohamed Ghalaieny, Steve R. Arnold, and Martyn P. Chipperfield
Atmos. Chem. Phys., 22, 4323–4338, https://doi.org/10.5194/acp-22-4323-2022, https://doi.org/10.5194/acp-22-4323-2022, 2022
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Nitrogen oxides (NOx) are potent air pollutants which directly impact on human health. In this study, we use satellite nitrogen dioxide (NO2) data to evaluate the spatial distribution and temporal evolution of the UK official NOx emissions inventory, with reasonable agreement. We also derived satellite-based NOx emissions for several UK cities. In the case of London and Birmingham, the NAEI NOx emissions are potentially too low by >50%.
Vitali Fioletov, Chris A. McLinden, Debora Griffin, Nickolay Krotkov, Fei Liu, and Henk Eskes
Atmos. Chem. Phys., 22, 4201–4236, https://doi.org/10.5194/acp-22-4201-2022, https://doi.org/10.5194/acp-22-4201-2022, 2022
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The COVID-19 lockdown had a large impact on anthropogenic emissions and particularly on nitrogen dioxide (NO2). A new method of isolation of background, urban, and industrial components in NO2 is applied to estimate the lockdown impact on each of them. From 16 March to 15 June 2020, urban NO2 declined by −18 % to −28 % in most regions of the world, while background NO2 typically declined by less than −10 %.
Sören Johansson, Gerald Wetzel, Felix Friedl-Vallon, Norbert Glatthor, Michael Höpfner, Anne Kleinert, Tom Neubert, Björn-Martin Sinnhuber, and Jörn Ungermann
Atmos. Chem. Phys., 22, 3675–3691, https://doi.org/10.5194/acp-22-3675-2022, https://doi.org/10.5194/acp-22-3675-2022, 2022
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We present GLORIA airborne cross sections of PAN, C2H6, HCOOH, CH3OH, and C2H4 in the South Atlantic UTLS in September/October 2019. Filamentary structures and a large plume were observed. Backward trajectories indicate that measured pollutants come from South America and central Africa. Comparisons to CAMS show structural agreement of the measured distributions. PAN absolute VMRs agree with the GLORIA measurements, C2H6 and HCOOH are simulated too low, and CH3OH and C2H4 are too high.
Kezia Lange, Andreas Richter, and John P. Burrows
Atmos. Chem. Phys., 22, 2745–2767, https://doi.org/10.5194/acp-22-2745-2022, https://doi.org/10.5194/acp-22-2745-2022, 2022
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In this study, we investigated short time variability of NOx emissions and lifetimes on a global scale. We combined 2 years of satellite Sentinel-5P TROPOMI tropospheric NO2 column data with wind data. Fifty NOx sources distributed around the world are analyzed. The retrieved emissions show a clear seasonal dependence. NOx lifetime shows a latitudinal dependence but only a week seasonal dependence. NOx emissions show a clear weekly pattern which in contrast is not visible for NOx lifetimes.
Fei Liu, Zhining Tao, Steffen Beirle, Joanna Joiner, Yasuko Yoshida, Steven J. Smith, K. Emma Knowland, and Thomas Wagner
Atmos. Chem. Phys., 22, 1333–1349, https://doi.org/10.5194/acp-22-1333-2022, https://doi.org/10.5194/acp-22-1333-2022, 2022
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In this work, we present a novel method to infer NOx emissions and lifetimes based on tropospheric NO2 observations together with reanalysis wind fields for cities located in polluted backgrounds. We evaluate the accuracy of the method using synthetic NO2 observations derived from a high-resolution model simulation. Our work provides an estimate for uncertainties in satellite-derived emissions inferred from chemical transport model (CTM)-independent approaches.
Qiansi Tu, Frank Hase, Matthias Schneider, Omaira García, Thomas Blumenstock, Tobias Borsdorff, Matthias Frey, Farahnaz Khosrawi, Alba Lorente, Carlos Alberti, Juan J. Bustos, André Butz, Virgilio Carreño, Emilio Cuevas, Roger Curcoll, Christopher J. Diekmann, Darko Dubravica, Benjamin Ertl, Carme Estruch, Sergio Fabián León-Luis, Carlos Marrero, Josep-Anton Morgui, Ramón Ramos, Christian Scharun, Carsten Schneider, Eliezer Sepúlveda, Carlos Toledano, and Carlos Torres
Atmos. Chem. Phys., 22, 295–317, https://doi.org/10.5194/acp-22-295-2022, https://doi.org/10.5194/acp-22-295-2022, 2022
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We use different methane ground- and space-based remote sensing data sets for investigating the emission strength of three waste disposal sites close to Madrid. We present a method that uses wind-assigned anomalies for deriving emission strengths from satellite data and estimate their uncertainty to 9–14 %. The emission strengths estimated from the remote sensing data sets are significantly larger than the values published in the official register.
Robert D. Field, Jonathan E. Hickman, Igor V. Geogdzhayev, Kostas Tsigaridis, and Susanne E. Bauer
Atmos. Chem. Phys., 21, 18333–18350, https://doi.org/10.5194/acp-21-18333-2021, https://doi.org/10.5194/acp-21-18333-2021, 2021
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In this study, we examined changes in atmospheric composition over China from satellite measurements during the COVID lockdowns of 2020. We found that interpreting changes in 2020 depended strongly on the background period and whether trends were accounted for. In most cases, pollution levels in 2020 were lower than during the previous few years when pollution levels appear to have stabilized.
Andrea Pazmiño, Matthias Beekmann, Florence Goutail, Dmitry Ionov, Ariane Bazureau, Manuel Nunes-Pinharanda, Alain Hauchecorne, and Sophie Godin-Beekmann
Atmos. Chem. Phys., 21, 18303–18317, https://doi.org/10.5194/acp-21-18303-2021, https://doi.org/10.5194/acp-21-18303-2021, 2021
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UV-Visible Système d'Analyse par Observations Zénithales (SAOZ) NO2 tropospheric columns were evaluated to quantify the impact of the lockdown in limiting the COVID-19 propagation. Meteorological conditions and NO2 trends were considered. The negative anomaly in tropospheric columns in 2020, attributed to the lockdown (17 March–10 May and related emissions reductions), was 56 % at Paris and 46 % at a suburban site. A similar anomaly was found in the Airparif data of surface concentrations.
Sven Krautwurst, Konstantin Gerilowski, Jakob Borchardt, Norman Wildmann, Michał Gałkowski, Justyna Swolkień, Julia Marshall, Alina Fiehn, Anke Roiger, Thomas Ruhtz, Christoph Gerbig, Jaroslaw Necki, John P. Burrows, Andreas Fix, and Heinrich Bovensmann
Atmos. Chem. Phys., 21, 17345–17371, https://doi.org/10.5194/acp-21-17345-2021, https://doi.org/10.5194/acp-21-17345-2021, 2021
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Quantification of anthropogenic CH4 emissions remains challenging, but it is essential for near-term climate mitigation strategies. We use airborne remote sensing observations to assess bottom-up estimates of coal mining emissions from one of Europe's largest CH4 emission hot spots located in Poland. The analysis reveals that emissions from small groups of shafts can be disentangled, but caution is advised when comparing observations to commonly reported annual emissions.
Nicolas Theys, Vitali Fioletov, Can Li, Isabelle De Smedt, Christophe Lerot, Chris McLinden, Nickolay Krotkov, Debora Griffin, Lieven Clarisse, Pascal Hedelt, Diego Loyola, Thomas Wagner, Vinod Kumar, Antje Innes, Roberto Ribas, François Hendrick, Jonas Vlietinck, Hugues Brenot, and Michel Van Roozendael
Atmos. Chem. Phys., 21, 16727–16744, https://doi.org/10.5194/acp-21-16727-2021, https://doi.org/10.5194/acp-21-16727-2021, 2021
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We present a new algorithm to retrieve sulfur dioxide from space UV measurements. We apply the technique to high-resolution TROPOMI measurements and demonstrate the high sensitivity of the approach to weak SO2 emissions worldwide with an unprecedented limit of detection of 8 kt yr−1. This result has broad implications for atmospheric science studies dealing with improving emission inventories and identifying and quantifying missing sources, in the context of air quality and climate.
Jonathan E. Hickman, Niels Andela, Enrico Dammers, Lieven Clarisse, Pierre-François Coheur, Martin Van Damme, Courtney A. Di Vittorio, Money Ossohou, Corinne Galy-Lacaux, Kostas Tsigaridis, and Susanne E. Bauer
Atmos. Chem. Phys., 21, 16277–16291, https://doi.org/10.5194/acp-21-16277-2021, https://doi.org/10.5194/acp-21-16277-2021, 2021
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Ammonia (NH3) gas emitted from soils and biomass burning contributes to particulate air pollution. We used satellite observations of the atmosphere over Africa to show that declines in NH3 concentrations over South Sudan's Sudd wetland in 2008–2017 are related to variation in wetland extent. We also find NH3 concentrations increased in West Africa as a result of biomass burning and increased in the Lake Victoria region, likely due to agricultural expansion and intensification.
Nicole Jacobs, William R. Simpson, Kelly A. Graham, Christopher Holmes, Frank Hase, Thomas Blumenstock, Qiansi Tu, Matthias Frey, Manvendra K. Dubey, Harrison A. Parker, Debra Wunch, Rigel Kivi, Pauli Heikkinen, Justus Notholt, Christof Petri, and Thorsten Warneke
Atmos. Chem. Phys., 21, 16661–16687, https://doi.org/10.5194/acp-21-16661-2021, https://doi.org/10.5194/acp-21-16661-2021, 2021
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Spatial patterns of carbon dioxide seasonal cycle amplitude and summer drawdown timing derived from the OCO-2 satellite over northern high latitudes agree well with corresponding estimates from two models. The Asian boreal forest is anomalous with the largest amplitude and earliest seasonal drawdown. Modeled land contact tracers suggest that accumulated CO2 exchanges during atmospheric transport play a major role in shaping carbon dioxide seasonality in northern high-latitude regions.
Gaëlle Dufour, Didier Hauglustaine, Yunjiang Zhang, Maxim Eremenko, Yann Cohen, Audrey Gaudel, Guillaume Siour, Mathieu Lachatre, Axel Bense, Bertrand Bessagnet, Juan Cuesta, Jerry Ziemke, Valérie Thouret, and Bo Zheng
Atmos. Chem. Phys., 21, 16001–16025, https://doi.org/10.5194/acp-21-16001-2021, https://doi.org/10.5194/acp-21-16001-2021, 2021
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The IASI observations and the LMDZ-OR-INCA model simulations show negative ozone trends in the Central East China region in the lower free (3–6 km column) and the upper free (6–9 km column) troposphere. Sensitivity studies from the model show that the Chinese anthropogenic emissions contribute to more than 50 % in the trend. The reduction in NOx emissions that has occurred since 2013 in China seems to lead to a decrease in ozone in the free troposphere, contrary to the increase at the surface.
Cited articles
Agrawal, H., Malloy, Q. G. J., Welch, W. A., Wayne Miller, J., and Cocker, D.
R.: In-use gaseous and particulate matter emissions from a modern ocean
going container vessel, Atmos. Environ., 42, 5504–5510,
https://doi.org/10.1016/j.atmosenv.2008.02.053, 2008a.
Agrawal, H., Welch, W. A., Miller, J. W., and Cocker, D. R.: Emissions
measurements from a cruide oil tanker at sea, Environ. Sci. Technol.,
42, 7098–7103, https://doi.org/10.1021/es703102y, 2008b.
Akagi, S. K., Burling, I. R., Mendoza, A., Johnson, T. J., Cameron, M., Griffith, D. W. T.,
Paton-Walsh, C., Weise, D. R., Reardon, J., and Yokelson, R. J.: Field measurements of trace gases emitted
by prescribed fires in southeastern US pine forests using an open-path FTIR
system, Atmos. Chem. Phys., 14, 199–215, https://doi.org/10.5194/acp-14-199-2014, 2014.
Aksoyoglu, S., Baltensperger, U., and Prévôt, A. S. H.: Contribution of
ship emissions to the concentration and deposition of air pollutants in
Europe, Atmos. Chem. Phys., 16, 1895–1906, https://doi.org/10.5194/acp-16-1895-2016, 2016.
Alföldy, B., Lööv, J. B., Lagler, F., Mellqvist, J., Berg, N.,
Beecken, J., Weststrate, H., Duyzer, J., Bencs, L., Horemans, B., Cavalli, F.,
Putaud, J.-P., Janssens-Maenhout, G., Csordás, A. P., Van Grieken, R., Borowiak, A.,
and Hjorth, J.: Measurements of air pollution emission factors for marine
transportation in SECA, Atmos. Meas. Tech., 6, 1777–1791, https://doi.org/10.5194/amt-6-1777-2013, 2013.
Aliabadi, A. A., Thomas, J. L., Herber, A. B., Staebler, R. M., Leaitch, W. R.,
Schulz, H., Law, K. S., Marelle, L., Burkart, J., Willis, M. D., Bozem, H.,
Hoor, P. M., Köllner, F., Schneider, J., Levasseur, M., and Abbatt, J. P. D.:
Ship emissions measurement in the Arctic by plume intercepts of the Canadian
Coast Guard icebreaker Amundsen from the Polar 6 aircraft platform, Atmos. Chem. Phys., 16, 7899–7916, https://doi.org/10.5194/acp-16-7899-2016, 2016.
Aulinger, A., Matthias, V., Zeretzke, M., Bieser, J., Quante, M., and Backes, A.:
The impact of shipping emissions on air pollution in the greater North Sea
region – Part 1: Current emissions and concentrations, Atmos. Chem. Phys., 16, 739–758, https://doi.org/10.5194/acp-16-739-2016, 2016.
Berg, N., Mellqvist, J., Jalkanen, J.-P., and Balzani, J.: Ship emissions of SO2 and
NO2: DOAS measurements from airborne platforms, Atmos. Meas. Tech., 5, 1085–1098, https://doi.org/10.5194/amt-5-1085-2012, 2012.
Brown, S. S. and Stutz, J.: Nighttime radical observations and chemistry,
Chem. Soc. Rev., 41, 6405, https://doi.org/10.1039/c2cs35181a, 2012.
Burgard, D. A. and Bria, C. R. M.: Bridge-based sensing of NOx and
SO2 emissions from ocean-going ships, Atmos. Environ., 136, 54–60,
https://doi.org/10.1016/j.atmosenv.2016.04.014, 2016.
Burgard, D. A., Bishop, G. A., and Stedman, D. H.: Remote sensing of ammonia
and sulfur dioxide from on-road light duty vehicles, Environ. Sci. Technol.,
40, 7018–7022, https://doi.org/10.1021/es061161r, 2006.
Canadian Council of Ministers of the Environment: Ambient air monitoring
protocol for PM2.5 and ozone – Canada wide standards for particulate matter
and ozone (PN 1456 ISBN 978-1-896997-99-5 PDF), 1–61, available at: http://www.ccme.ca/files/Resources/air/pm_ozone/pm_oz_cws_monitoring_protocol_pn1456_e.pdf
(last access: November 2017), 2011.
Cappa, C. D., Williams, E. J., Lack, D. A., Buffaloe, G. M., Coffman, D.,
Hayden, K. L., Herndon, S. C., Lerner, B. M., Li, S.-M., Massoli, P., McLaren, R.,
Nuaaman, I., Onasch, T. B., and Quinn, P. K.: A case study into the measurement of ship
emissions from plume intercepts of the NOAA ship Miller Freeman, Atmos. Chem. Phys., 14, 1337–1352, https://doi.org/10.5194/acp-14-1337-2014, 2014.
Carrière, A., Kaufmann, C., Shapiro, J., Paine, P., and Prinsen, J. H.:
The Contribution of Methanol (VOC) Emissions from Windshield Washer Fluid
Use to the Formation of Ground-Level Ozone, SAE Technical Paper
2000-01-0663, https://doi.org/10.4271/2000-01-0663, 2000.
Carslaw, D. C. and Rhys-Tyler, G.: New insights from comprehensive on-road
measurements of NOx, NO2 and NH3 from vehicle emission remote
sensing in London, UK, Atmos. Environ., 81, 339–347,
https://doi.org/10.1016/j.atmosenv.2013.09.026, 2013.
Celo, V., Dabek-Zlotorzynska, E., and McCurdy, M.: Chemical characterization
of exhaust emissions from selected Canadian marine vessels: The case of
trace metals and lanthanoids, Environ. Sci. Technol., 49, 5220–5226,
https://doi.org/10.1021/acs.est.5b00127, 2015.
Chen, G., Huey, L. G., Trainer, M., Nicks, D., Corbett, J., Ryerson, T.,
Parrish, D., Neuman, J. A., Nowak, J., Tanner, D., Holloway, J., Brock, C.,
Crawford, J., Olson, J. R., Sullivan, A., Weber, R., Schauffler, S.,
Donnelly, S., Atlas, E., Roberts, J., Flocke, F., Hübler, G., and
Fehsenfeld, F.: An investigation of the chemistry of ship emission plumes
during ITCT 2002, J. Geophys. Res.-Atmos., 110, 1–15,
https://doi.org/10.1029/2004JD005236, 2005.
Chosson, F., Paoli, R., and Cuenot, B.: Ship plume dispersion rates in
convective boundary layers for chemistry models, Atmos. Chem. Phys., 8, 4841–4853, https://doi.org/10.5194/acp-8-4841-2008, 2008.
Cooper, D. A.: Exhaust emissions from ships at berth, Atmos. Environ.,
37, 3817–3830, https://doi.org/10.1016/S1352-2310(03)00446-1, 2003.
Corbett, J. J., Fischbeck, P. S., and Pandis, S. N.: Global nitrogen and
sulfur inventories for oceangoing ships, J. Geophys. Res.-Atmos., 104,
3457–3470, https://doi.org/10.1029/1998JD100040, 1999.
Corbett, J. J., Winebrake, J. J., and Lauer, A.: Mortality from Ship
Emissions?: A Global Assessment, Environ. Sci. Technol., 41,
8512–8518, https://doi.org/10.1021/es071686z, 2007.
Dalsøren, S. B., Eide, M. S., Myhre, G., Endresen, Ø., Isaksen, I. S.
A., and Fuglestvedt, J. S.: Impacts of the large increase in international
ship traffic 2000–2007 on tropospheric ozone and methane, Environ. Sci.
Technol., 44, 2482–2489, https://doi.org/10.1021/es902628e, 2010.
de Gouw, J. A., Middlebrook, A. M., Warneke, C., Goldan, P. D., Kuster, W.
C., Roberts, J. M., Fehsenfeld, F. C., Worsnop, D. R., Canagaratna, M. R.,
Pszenny, A. A. P., Keene, W. C., Marchewka, M., Bertman, S. B., and Bates, T.
S.: Budget of organic carbon in a polluted atmosphere: Results from the New
England Air Quality Study in 2002, J. Geophys. Res.-Atmos., 110,
1–22, https://doi.org/10.1029/2004JD005623, 2005.
Diesch, J.-M., Drewnick, F., Klimach, T., and Borrmann, S.: Investigation of gaseous and
particulate emissions from various marine vessel types measured
on the banks of the Elbe in Northern Germany, Atmos. Chem. Phys., 13, 3603–3618, https://doi.org/10.5194/acp-13-3603-2013, 2013.
Eckhardt, S., Hermansen, O., Grythe, H., Fiebig, M., Stebel, K., Cassiani, M.,
Baecklund, A., and Stohl, A.: The influence of cruise ship emissions
on air pollution in Svalbard – a harbinger of a more polluted
Arctic?, Atmos. Chem. Phys., 13, 8401–8409, https://doi.org/10.5194/acp-13-8401-2013, 2013.
Endresen, Ø.: Emission from international sea transportation and
environmental impact, J. Geophys. Res.-Atmos., 108, 4560,
https://doi.org/10.1029/2002JD002898, 2003.
Environment Canada: Amendments to the Sulphur in Diesel Fuel Regulations?:
Cleaner Marine Fuel Means Cleaner Air for Canadians (Cat. No.:
En14-69/2012E-PDF), 2012.
Eyring, V., Köhler, H. W., Van Aardenne, J., and Lauer, A.: Emissions
from international shipping: 1. The last 50 years, J. Geophys. Res.-Atmos., 110, 171–182, https://doi.org/10.1029/2004JD005619, 2005.
Eyring, V., Stevenson, D. S., Lauer, A., Dentener, F. J., Butler, T., Collins, W. J.,
Ellingsen, K., Gauss, M., Hauglustaine, D. A., Isaksen, I. S. A.,
Lawrence, M. G., Richter, A., Rodriguez, J. M., Sanderson, M., Strahan, S. E.,
Sudo, K., Szopa, S., van Noije, T. P. C., and Wild, O.: Multi-model simulations
of the impact of international shipping on Atmospheric Chemistry and
Climate in 2000 and 2030, Atmos. Chem. Phys., 7, 757–780, https://doi.org/10.5194/acp-7-757-2007,
2007.
Eyring, V., Isaksen, I. S. A., Berntsen, T., Collins, W. J., Corbett, J. J.,
Endresen, Ø., Grainger, R. G., Moldanová, J., Schlager, H., and Stevenson,
D. S.: Transport impacts on atmosphere and climate: Shipping, Atmos.
Environ., 44, 4735–4771,
https://doi.org/10.1016/j.atmosenv.2009.04.059, 2010.
Flesch, T. K., Baron, V. S., Wilson, J. D., Griffith, D. W. T., Basarab, J.
A., and Carlson, P. J.: Agricultural gas emissions during the spring thaw:
Applying a new measurement technique, Agric. Forest Meteorol., 221, 111–121,
https://doi.org/10.1016/j.agrformet.2016.02.010, 2016.
Flesch, T. K., Basarab, J. A., Baron, V. S., Wilson, J. D., Hu, N., Tomkins,
N. W., and Ohama, A. J.: Methane emissions from cattle grazing under diverse
conditions: An examination of field configurations appropriate for
line-averaging sensors, Agric. Forest Meteorol., 258, 8–17,
https://doi.org/10.1016/j.agrformet.2017.10.012, 2017.
Fu, M., Ding, Y., Ge, Y., Yu, L., Yin, H., Ye, W., and Liang, B.: Real-world
emissions of inland ships on the Grand Canal, China, Atmos. Environ., 81,
222–229, https://doi.org/10.1016/j.atmosenv.2013.08.046, 2013.
Gibson, M. D., Pierce, J. R., Waugh, D., Kuchta, J. S., Chisholm, L.,
Duck, T. J., Hopper, J. T., Beauchamp, S., King, G. H., Franklin, J. E.,
Leaitch, W. R., Wheeler, A. J., Li, Z., Gagnon, G. A., and Palmer, P. I.:
Identifying the sources driving observed PM2.5 temporal variability over
Halifax, Nova Scotia, during BORTAS-B, Atmos. Chem. Phys., 13, 7199–7213, https://doi.org/10.5194/acp-13-7199-2013, 2013.
Griffith, D. W. T.: Synthetic calibration and quantitative analysis of gas
phase FTIR spectra, Appl. Spectrosc., 50, 59–70, 1996.
Griffith, D. W. T., Deutscher, N. M., Caldow, C., Kettlewell, G., Riggenbach, M.,
and Hammer, S.: A Fourier transform infrared trace gas and isotope analyser
for atmospheric applications, Atmos. Meas. Tech., 5, 2481–2498, https://doi.org/10.5194/amt-5-2481-2012, 2012.
Halifax Port Authority: Port of Halifax: 2015–2016 Economic Impacts,
available at:
http://www.portofhalifax.ca/english/about-us/index.html, last access: November 2017.
Henry, R. F.: Weekday/weekend differences in gasoline related hydrocarbons
at coastal PAMS sites due to recreational boating, Atmos. Environ., 75, 58–65,
2013.
Hingston, M.: An Assessment of Marine Vessel Emissions and their
Contribution to Air Quality in Halifax Harbour for the Year 2002, Environment Canada, Atlantic Region, 2005.
Hu, L., Millet, D. B., Mohr, M. J., Wells, K. C., Griffis, T. J., and Helmig, D.:
Sources and seasonality of atmospheric methanol based on tall tower
measurements in the US Upper Midwest, Atmos. Chem. Phys., 11, 11145–11156, https://doi.org/10.5194/acp-11-11145-2011, 2011.
International Maritime Organization: Third IMO Greenhouse Gas Study 2014,
327, https://doi.org/10.1007/s10584-013-0912-3, 2015.
Jacob, D. J.: Introduction to Atmospheric Chemistry, Princeton University
Press, Princeton, New Jersey, 1999.
Jarvis, J. M.: Open Path Spectrophotometry (UV , IR , FT-IR), Anal.
Instrum., Instrument Engineers' Handbook: Process Measurement and Analysis, fourth edn., I, 1493–1505, 2003.
Jeong, C., McGuire, M. L., Herod, D., Dann, T., Dabek–Zlotorzynska, E.,
Wang, D., Ding, L., Celo, V., Mathieu, D., and Evans, G.: Receptor model
based identification of PM2.5 sources in Canadian cities, Atmos. Pollut.
Res., 2, 158–171, https://doi.org/10.5094/APR.2011.021, 2011.
Jonson, J. E., Jalkanen, J. P., Johansson, L., Gauss, M., and Denier van der Gon, H. A. C.:
Model calculations of the effects of present and future emissions of air
pollutants from shipping in the Baltic Sea and the North Sea, Atmos. Chem. Phys., 15, 783–798, https://doi.org/10.5194/acp-15-783-2015, 2015.
Lack, D. A. and Corbett, J. J.: Black carbon from ships: a review of the effects of
ship speed, fuel quality and exhaust gas scrubbing, Atmos. Chem. Phys., 12, 3985–4000, https://doi.org/10.5194/acp-12-3985-2012, 2012.
Lack, D. A., Cappa, C. D., Langridge, J., Bahreini, R., Buffaloe, G., Brock,
C., Cerully, K., Coffman, D., Hayden, K., Holloway, J., Lerner, B., Massoli,
P., Li, S. M., McLaren, R., Middlebrook, A. M., Moore, R., Nenes, A.,
Nuaaman, I., Onasch, T. B., Peischl, J., Perring, A., Quinn, P. K., Ryerson,
T., Schwartz, J. P., Spackman, R., Wofsy, S. C., Worsnop, D., Xiang, B., and
Williams, E.: Impact of fuel quality regulation and speed reductions on
shipping emissions: Implications for climate and air quality, Environ. Sci.
Technol., 45, 9052–9060, https://doi.org/10.1021/es2013424, 2011.
Lehtoranta, K., Vesala, H., Koponen, P., and Korhonen, S.: Selective
catalytic reduction operation with heavy fuel oil: NOx, NH3, and particle
emissions, Environ. Sci. Technol., 49, 4735–4741, https://doi.org/10.1021/es506185x,
2015.
Liu, H., Fu, M., Jin, X., Shang, Y., Shindell, D., Faluvegi, G., Shindell,
C., and He, K.: Health and climate impacts of ocean-going vessels in East
Asia, Nat. Clim. Change, 6, 1037–1042, https://doi.org/10.1038/NCLIMATE3083,
2016.
Lu, G., Brook, J. R., Rami Alfarra, M., Anlauf, K., Richard Leaitch, W.,
Sharma, S., Wang, D., Worsnop, D. R., and Phinney, L.: Identification and
characterization of inland ship plumes over Vancouver, BC, Atmos. Environ.,
40, 2767–2782, https://doi.org/10.1016/j.atmosenv.2005.12.054, 2006.
Luecken, D. J., Hutzell, W. T., Strum, M. L., and Pouliot, G. A.: Regional
sources of atmospheric formaldehyde and acetaldehyde, and implications for
atmospheric modeling, Atmos. Environ., 47, 477–490,
https://doi.org/10.1016/j.atmosenv.2011.10.005, 2012.
Marr, I. L., Rosser, D. P., and Meneses, C. A.: An air quality survey and
emissions inventory at Aberdeen Harbour, Atmos. Environ., 41,
6379–6395, https://doi.org/10.1016/j.atmosenv.2007.04.049, 2007.
McLaren, R., Wojtal, P., Majonis, D., McCourt, J., Halla, J. D., and Brook, J.:
NO3 radical measurements in a polluted marine environment: links to
ozone formation, Atmos. Chem. Phys., 10, 4187–4206, https://doi.org/10.5194/acp-10-4187-2010, 2010.
McLaren, R., Wojtal, P., Halla, J. D., Mihele, C., and Brook, J. R.: A survey
of NO2:SO2 emission ratios measured in marine vessel plumes in the
Strait of Georgia, Atmos. Environ., 46, 655–658,
https://doi.org/10.1016/j.atmosenv.2011.10.044, 2012.
Merico, E., Donateo, A., Gambaro, A., Cesari, D., Gregoris, E., Barbaro, E.,
Dinoi, A., Giovanelli, G., Masieri, S., and Contini, D.: Influence of in-port
ships emissions to gaseous atmospheric pollutants and to particulate matter
of different sizes in a Mediterranean harbour in Italy, Atmos. Environ.,
139, 1–10, https://doi.org/10.1016/j.atmosenv.2016.05.024, 2016.
Moldanová, J., Fridell, E., Popovicheva, O., Demirdjian, B., Tishkova,
V., Faccinetto, A., and Focsa, C.: Characterisation of particulate matter and
gaseous emissions from a large ship diesel engine, Atmos. Environ., 43,
2632–2641, https://doi.org/10.1016/j.atmosenv.2009.02.008, 2009.
Murphy, S. M., Agrawal, H., Sorooshian, A., Padró, L. T., Gates, H.,
Hersey, S., Welch, W. A., Miller, J. W., Iii, D. R. C., Nenes, A., Jonsson,
H. H., Flagan, R. C., Seinfeld, J. H., Jung, H., Miller, J. W., Cocker, D.
R., Nenes, A., Jonsson, H. H., Flagan, R. C., and Seinfeld, J. H.:
Comprehensive Simultaneous Shipboard and Airborne Characterization of
Exhaust from a Modern Container Ship at Sea, Environ. Sci. Technol., 43,
4626–4640, https://doi.org/10.1021/es802413j, 2009.
Nova Scotia Environment Air Quality Unit: Nova Scotia Air Zone Report 2015,
available at: https://novascotia.ca/nse/air/ (last access: November 2017), 2015.
Paton-Walsh, C., Smith, T. E. L., Young, E. L., Griffith, D. W. T., and Guérette, É.-A.:
New emission factors for Australian vegetation fires measured using open-path
Fourier transform infrared spectroscopy – Part 1: Methods and Australian temperate
forest fires, Atmos. Chem. Phys., 14, 11313–11333, https://doi.org/10.5194/acp-14-11313-2014, 2014.
Petzold, A., Hasselbach, J., Lauer, P., Baumann, R., Franke, K., Gurk, C., Schlager, H.,
and Weingartner, E.: Experimental studies on particle emissions from cruising ship,
their characteristic properties, transformation and atmospheric lifetime
in the marine boundary layer, Atmos. Chem. Phys., 8, 2387–2403, https://doi.org/10.5194/acp-8-2387-2008, 2008.
Phinney, L., Waugh, D., Beauchamp, S., and Hingston, M.: Contribution of
Marine Activities to Ambient Air Chemistry in Coastal Regions of Atlantic
Canada Phase I: Halifax Harbour (Science Report Series 2006-01),
Meteorological Service of Canada, Atlantic Region, Dartmouth, 2006.
Pirjola, L., Pajunoja, A., Walden, J., Jalkanen, J.-P., Rönkkö, T., Kousa, A., and
Koskentalo, T.: Mobile measurements of ship emissions in two harbour areas in Finland, Atmos. Meas. Tech., 7, 149–161, https://doi.org/10.5194/amt-7-149-2014, 2014.
Piumetti, M., Bensaid, S., Fino, D., and Russo, N.: Catalysis in Diesel
engine NOx aftertreatment: a review, Catal. Struct. React., 1, 155–173,
https://doi.org/10.1080/2055074X.2015.1105615, 2015.
Poplawski, K., Setton, E., McEwen, B., Hrebenyk, D., Graham, M., and Keller,
P.: Impact of cruise ship emissions in Victoria, BC, Canada, Atmos.
Environ., 45, 824–833, https://doi.org/10.1016/j.atmosenv.2010.11.029, 2011.
Rantala, P., Järvi, L., Taipale, R., Laurila, T. K., Patokoski, J.,
Kajos, M. K., Kurppa, M., Haapanala, S., Siivola, E., Petäjä, T.,
Ruuskanen, T. M., and Rinne, J.: Anthropogenic and biogenic influence on VOC
fluxes at an urban background site in Helsinki, Finland, Atmos. Chem. Phys., 16, 7981–8007, https://doi.org/10.5194/acp-16-7981-2016, 2016.
Reda, A. A., Schnelle-Kreis, J., Orasche, J., Abbaszade, G., Lintelmann, J.,
Arteaga-Salas, J. M., Stengel, B., Rabe, R., Harndorf, H., Sippula, O.,
Streibel, T., and Zimmermann, R.: Gas phase carbonyl compounds in ship
emissions: Differences between diesel fuel and heavy fuel oil operation,
Atmos. Environ., 112, 370–380, https://doi.org/10.1016/j.atmosenv.2014.05.053, 2014.
Rothman, L. S., Gordon, I. E., Babikov, Y., Barbe, A., Chris Benner, D.,
Bernath, P. F., Birk, M., Bizzocchi, L., Boudon, V., Brown, L. R.,
Campargue, A., Chance, K., Cohen, E. A., Coudert, L. H., Devi, V. M.,
Drouin, B. J., Fayt, A., Flaud, J. M., Gamache, R. R., Harrison, J. J.,
Hartmann, J. M., Hill, C., Hodges, J. T., Jacquemart, D., Jolly, A.,
Lamouroux, J., Le Roy, R. J., Li, G., Long, D. A., Lyulin, O. M., Mackie, C.
J., Massie, S. T., Mikhailenko, S., Müller, H. S. P., Naumenko, O. V.,
Nikitin, A. V., Orphal, J., Perevalov, V., Perrin, A., Polovtseva, E. R.,
Richard, C., Smith, M. A. H., Starikova, E., Sung, K., Tashkun, S.,
Tennyson, J., Toon, G. C., Tyuterev, V. G., and Wagner, G.: The HITRAN2012
molecular spectroscopic database, J. Quant. Spectrosc. Ra., 130,
4–50, https://doi.org/10.1016/j.jqsrt.2013.07.002, 2013.
Seyler, A., Wittrock, F., Kattner, L., Mathieu-Üffing, B., Peters, E.,
Richter, A., Schmolke, S., and Burrows, J. P.: Monitoring shipping emissions in the
German Bight using MAX-DOAS measurements, Atmos. Chem. Phys., 17, 10997–11023, https://doi.org/10.5194/acp-17-10997-2017, 2017.
Sinha, P., Hobbs, P. V., Yokelson, R. J., Christian, T. J., Kirchstetter, T.
W., and Bruintjes, R.: Emissions of trace gases and particles from two ships
in the southern Atlantic Ocean, Atmos. Environ., 37, 2139–2148,
https://doi.org/10.1016/S1352-2310(03)00080-3, 2003.
Smith, T. E. L., Wooster, M. J., Tattaris, M., and Griffith, D. W. T.:
Absolute accuracy and sensitivity analysis of OP-FTIR retrievals of CO2, CH4
and CO over concentrations representative of “clean air” and “polluted plumes”, Atmos. Meas. Tech., 4, 97–116, https://doi.org/10.5194/amt-4-97-2011, 2011.
Suarez-Bertoa, R., Zardini, A. A., and Astorga, C.: Ammonia exhaust emissions
from spark ignition vehicles over the New European Driving Cycle, Atmos.
Environ., 97, 43–53, https://doi.org/10.1016/j.atmosenv.2014.07.050, 2014.
UNCTAD: Review of Maritime Transport 2016, ISBN 978-92-1-112904-5, 2016.
United States Environmental Protection Agency: Analysis of Commercial Marine
Vessels Emissions and Fuel Consumption Data (EPA420-R-00-002), 2000.
Vinken, G. C. M., Boersma, K. F., Jacob, D. J., and Meijer, E. W.:
Accounting for non-linear chemistry of ship plumes in the GEOS-Chem global
chemistry transport model, Atmos. Chem. Phys., 11, 11707–11722, https://doi.org/10.5194/acp-11-11707-2011, 2011.
Williams, E. J., Lerrier, B. M., Murphy, P. C., Herndon, S. C., and Zahniser,
M. S.: Emissions of NOx, SO2, CO, and HCHO
from commercial marine shipping during Texas Air Quality Study (TexAQS)
2006, J. Geophys. Res.-Atmos., 114, D21306, https://doi.org/10.1029/2009JD012094, 2009.
Wojtal, P., Halla, J. D., and McLaren, R.: Pseudo steady states of HONO measured in
the nocturnal marine boundary layer: a conceptual model for HONO formation
on aqueous surfaces, Atmos. Chem. Phys., 11, 3243–3261, https://doi.org/10.5194/acp-11-3243-2011, 2011.
World Maritime News: IMO Designates North Sea, Baltic Sea as NECA, World
Marit, available at:
http://worldmaritimenews.com/archives/205936/imo-designates-north-sea-baltic-sea-as-neca/
(last access: 15 October 2017), 2016.
You, Y., Staebler, R. M., Moussa, S. G., Su, Y., Munoz, T., Stroud, C., Zhang, J.,
and Moran, M. D.: Long-path measurements of pollutants and micrometeorology
over Highway 401 in Toronto, Atmos. Chem. Phys., 17, 14119–14143, https://doi.org/10.5194/acp-17-14119-2017, 2017.
Zhang, F., Chen, Y., Tian, C., Lou, D., Li, J., Zhang, G., and Matthias, V.:
Emission factors for gaseous and particulate pollutants from offshore diesel
engine vessels in China, Atmos. Chem. Phys., 16, 6319–6334, https://doi.org/10.5194/acp-16-6319-2016, 2016.
Short summary
Trace gas concentrations were measured at Halifax Harbour – an intermediate harbour integrated into the downtown core. We observed extended (~ 9 h) emission accumulations and also calculated marine sector emissions in the harbour. Regulated trace gas emissions were 2.8 % higher during cruise ship season (cruise ships contributed 18 % of emissions in season). Shipping NOx emissions were 4.2 times greater than those of a nearby 500 MW stationary source and were comparable to vehicle NOx emissions.
Trace gas concentrations were measured at Halifax Harbour – an intermediate harbour integrated...
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