An improved mechanistic model for ammonia volatilization in Earth system models: Flow of Agricultural Nitrogen version 2 (FANv2)

Vira, Julius; Hess, Peter; Melkonian, Jeff; Wieder, William R.

doi:https://doi.org/10.5194/gmd-13-4459-2020

Articles | Volume 13, issue 9

https://doi.org/10.5194/gmd-13-4459-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-13-4459-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 9

Development and technical paper

| Highlight paper

|

24 Sep 2020

Development and technical paper | Highlight paper |

| 24 Sep 2020

An improved mechanistic model for ammonia volatilization in Earth system models: Flow of Agricultural Nitrogen version 2 (FANv2)

Julius Vira, Peter Hess, Jeff Melkonian, and William R. Wieder

Supplement

https://doi.org/10.5194/gmd-13-4459-2020-supplement

Data sets

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

Model code and software

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

Short summary

Mostly emitted by the agricultural sector, ammonia has an important role in atmospheric chemistry. We developed a model to simulate how ammonia emissions respond to changes in temperature and soil moisture, and we evaluated agricultural ammonia emissions globally. The simulated emissions agree with earlier estimates over many regions, but the results highlight the variability of ammonia emissions and suggest that emissions in warm climates may be higher than previously thought.