Articles | Volume 22, issue 10
https://doi.org/10.5194/acp-22-6595-2022
© Author(s) 2022. 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-22-6595-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
An ensemble-variational inversion system for the estimation of ammonia emissions using CrIS satellite ammonia retrievals
Air Quality Research Division, Environment and Climate Change Canada, Toronto, Ontario, Canada
Mark W. Shephard
Air Quality Research Division, Environment and Climate Change Canada, Toronto, Ontario, Canada
Yves Rochon
Air Quality Research Division, Environment and Climate Change Canada, Toronto, Ontario, Canada
Karen Cady-Pereira
Atmospheric and Environmental Research, Lexington, MA, USA
Enrico Dammers
TNO, Climate Air and Sustainability, Utrecht, the Netherlands
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Cited
14 citations as recorded by crossref.
- 4DEnVar-based inversion system for ammonia emission estimation in China through assimilating IASI ammonia retrievals J. Jin et al. https://doi.org/10.1088/1748-9326/acb835
- Ammonia bidirectional flux model tailored for satellite retrieval parameter inversions M. Sitwell et al. https://doi.org/10.5194/gmd-19-4797-2026
- Decreasing trends of ammonia emissions over Europe seen from remote sensing and inverse modelling O. Tichý et al. https://doi.org/10.5194/acp-23-15235-2023
- Spatial and temporal variability of atmospheric ammonia using a dense network in an area with livestock, residential and natural environments intertwined S. Lô et al. https://doi.org/10.1016/j.atmosenv.2025.121394
- Atmospheric reduced nitrogen: Sources, transformations, effects, and management C. Driscoll et al. https://doi.org/10.1080/10962247.2024.2342765
- Satellite-Based Emission Inversion for Air Pollutants and Greenhouse Gases: A Review Z. Jiang et al. https://doi.org/10.1007/s13351-025-4914-7
- Accounting for Non-Detects: Application to Satellite Ammonia Observations E. White et al. https://doi.org/10.3390/rs15102610
- Unchanged PM2.5 levels over Europe during COVID-19 were buffered by ammonia N. Evangeliou et al. https://doi.org/10.5194/ar-3-155-2025
- Using multi-satellite observations to constrain ammonia emissions and unlock their potential over open water M. Momeni et al. https://doi.org/10.1038/s41598-025-09933-9
- Data fusion of modelled and measured deposition in the US and Canada, part II: Dry deposition of sulfur, nitrogen and ozone A. Robichaud et al. https://doi.org/10.1016/j.atmosenv.2025.121656
- Infrared Satellite Detection Limits for Monitoring Atmospheric Ammonia M. Shephard et al. https://doi.org/10.1109/JSTARS.2025.3557240
- Ammonia emissions and depositions over the contiguous United States derived from IASI and CrIS using the directional derivative approach Z. Li et al. https://doi.org/10.5194/acp-26-703-2026
- Ammonia emission estimates using CrIS satellite observations over Europe J. Ding et al. https://doi.org/10.5194/acp-24-10583-2024
- Reconciling bottom-up and top-down agricultural ammonia emission estimates Z. Ma et al. https://doi.org/10.1016/j.treopn.2026.07.004
14 citations as recorded by crossref.
- 4DEnVar-based inversion system for ammonia emission estimation in China through assimilating IASI ammonia retrievals J. Jin et al. https://doi.org/10.1088/1748-9326/acb835
- Ammonia bidirectional flux model tailored for satellite retrieval parameter inversions M. Sitwell et al. https://doi.org/10.5194/gmd-19-4797-2026
- Decreasing trends of ammonia emissions over Europe seen from remote sensing and inverse modelling O. Tichý et al. https://doi.org/10.5194/acp-23-15235-2023
- Spatial and temporal variability of atmospheric ammonia using a dense network in an area with livestock, residential and natural environments intertwined S. Lô et al. https://doi.org/10.1016/j.atmosenv.2025.121394
- Atmospheric reduced nitrogen: Sources, transformations, effects, and management C. Driscoll et al. https://doi.org/10.1080/10962247.2024.2342765
- Satellite-Based Emission Inversion for Air Pollutants and Greenhouse Gases: A Review Z. Jiang et al. https://doi.org/10.1007/s13351-025-4914-7
- Accounting for Non-Detects: Application to Satellite Ammonia Observations E. White et al. https://doi.org/10.3390/rs15102610
- Unchanged PM2.5 levels over Europe during COVID-19 were buffered by ammonia N. Evangeliou et al. https://doi.org/10.5194/ar-3-155-2025
- Using multi-satellite observations to constrain ammonia emissions and unlock their potential over open water M. Momeni et al. https://doi.org/10.1038/s41598-025-09933-9
- Data fusion of modelled and measured deposition in the US and Canada, part II: Dry deposition of sulfur, nitrogen and ozone A. Robichaud et al. https://doi.org/10.1016/j.atmosenv.2025.121656
- Infrared Satellite Detection Limits for Monitoring Atmospheric Ammonia M. Shephard et al. https://doi.org/10.1109/JSTARS.2025.3557240
- Ammonia emissions and depositions over the contiguous United States derived from IASI and CrIS using the directional derivative approach Z. Li et al. https://doi.org/10.5194/acp-26-703-2026
- Ammonia emission estimates using CrIS satellite observations over Europe J. Ding et al. https://doi.org/10.5194/acp-24-10583-2024
- Reconciling bottom-up and top-down agricultural ammonia emission estimates Z. Ma et al. https://doi.org/10.1016/j.treopn.2026.07.004
Saved (final revised paper)
Latest update: 16 Sep 2026
Short summary
Observations of ammonia made using the satellite-borne CrIS instrument were used to improve the ammonia emissions used in the GEM-MACH model. These observations were used to refine estimates of the monthly mean ammonia emissions over North America for May to August 2016. The updated ammonia emissions reduced biases of GEM-MACH surface ammonia fields with surface observations and showed some improvements in the forecasting of species involved in inorganic particulate matter formation.
Observations of ammonia made using the satellite-borne CrIS instrument were used to improve the...
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