Articles | Volume 22, issue 3
Atmos. Chem. Phys., 22, 1883–1904, 2022
https://doi.org/10.5194/acp-22-1883-2022
Atmos. Chem. Phys., 22, 1883–1904, 2022
https://doi.org/10.5194/acp-22-1883-2022

Research article 09 Feb 2022

Research article | 09 Feb 2022

Evaluation of interactive and prescribed agricultural ammonia emissions for simulating atmospheric composition in CAM-chem

Julius Vira et al.

Data sets

Flow of Agricultural Nitrogen, version 2 (FANv2): Model input and output data (Revised May 2020) J. Vira, P. Hess, J. Melkonian, and W. R. Wieder https://doi.org/10.5281/zenodo.3841723

Emissions Database for Global Atmospheric Research, version v4.3.2 part II Air Pollutants (gridmaps) M. Crippa, G. Janssens-Maenhout, D. Guizzardi, M. Muntean, and E. Schaaf http://data.europa.eu/89h/jrc-edgar-v432-ap-gridmaps

EDGAR FOR HTAP V2 Joint Research Centre https://edgar.jrc.ec.europa.eu/dataset_htap_v2

Historical Emissions (1750-2014) - CEDS - v2017-05-18 Hoesly, R., Smith, S., Feng, L., Klimont, Z., Janssens-Maenhout, G., Pitkanen, T., Seibert, J. J., Vu, L., Andres, R. J., Bolt, R. M., Bond, T. C., L. Dawidowski, N. Kholod, J.-i. Kurokawa, M. Li, L. Liu, Z. Lu, M. C. P. Moura, P. R. O'Rourke, and Q. Zhang https://doi.org/10.22033/ESGF/input4MIPs.1241

Clean Air Status and Trends Network (CASTNET) United States Environmental Protection Agency https://www.epa.gov/castnet

Level 2 dataset and Level 3 oversampled average map of the IASI/Metop-A ammonia (NH3) morning column measurements (ANNI-NH3-v2.1R-I) from 2008 to 2016 M. Van Damme, L. Clarisse, S. Whitburn, J. Hadji-Lazaro, D. Hurtmans, C. Clerbaux, and P.-F. Coheur https://doi.org/10.1594/PANGAEA.894736

Model code and software

Flow of Agricultural Nitrogen, version 2 (FANv2) (May 2020) J. Vira, P. Hess, J. Melkonian, and W. R. Wieder https://doi.org/10.5281/zenodo.3841776

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Short summary
Ammonia is one of the main components of nitrogen deposition. Here we use a new model to assess the ammonia emissions from agriculture, the largest anthropogenic source of ammonia. The model results are consistent with earlier estimates over industrialized regions in agreement with observations. However, the model predicts much higher emissions over sub-Saharan Africa compared to earlier estimates. Available observations from surface stations and satellites support these higher emissions.
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