Process Modeling of Global Soil Nitrous Oxide Emissions
http://globalchange.mit.edu/research/publications/2213
| Main Authors: | , , |
|---|---|
| Format: | Technical Report |
| Language: | en_US |
| Published: |
MIT Joint Program on the Science and Policy of Global Change
2012
|
| Online Access: | http://hdl.handle.net/1721.1/70546 |
| _version_ | 1811078417462853632 |
|---|---|
| author | Saikawa, E. Schlosser, C.A. Prinn, R.G. |
| author_facet | Saikawa, E. Schlosser, C.A. Prinn, R.G. |
| author_sort | Saikawa, E. |
| collection | MIT |
| description | http://globalchange.mit.edu/research/publications/2213 |
| first_indexed | 2024-09-23T10:59:17Z |
| format | Technical Report |
| id | mit-1721.1/70546 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:59:17Z |
| publishDate | 2012 |
| publisher | MIT Joint Program on the Science and Policy of Global Change |
| record_format | dspace |
| spelling | mit-1721.1/705462019-04-12T20:59:31Z Process Modeling of Global Soil Nitrous Oxide Emissions Saikawa, E. Schlosser, C.A. Prinn, R.G. http://globalchange.mit.edu/research/publications/2213 Nitrous oxide is an important greenhouse gas and is a major ozone-depleting substance. To understand and quantify soil nitrous oxide emissions, we expanded the Community Land Model with prognostic Carbon and Nitrogen (CLM-CN) by inserting a module to estimate annually- and seasonally-varying nitrous oxide emissions between 1978 and 2000. We evaluate our soil N2O emission estimates against existing emissions inventories, other process-based model estimates, and observations from two forest sites in the Amazon and one in the United States. The model reproduces soil temperature and soil moisture relatively well, and it reconfirms the important relationship between N2O emissions and these parameters. The model also reproduces observations of N2O emissions well in the Amazonian forests but not during the winter in the USA. Applying this model to estimate the past 23 years of global soil N2O emissions, we find that there is a significant decrease in soil N2O emissions associated with drought and El Ni˜no years. More study is necessary to quantify the high-latitude winter activity in the model in order to better understand the impact of future climate on N2O emissions and vice versa. NASA Upper Atmosphere Research Program grants NNX11AF17G and NNX07AE89G 2012-05-09T18:51:13Z 2012-05-09T18:51:13Z 2011-09-01 Technical Report http://hdl.handle.net/1721.1/70546 Report no. 206 en_US Joint Program Report Series;206 An error occurred on the license name. An error occurred getting the license - uri. application/pdf MIT Joint Program on the Science and Policy of Global Change |
| spellingShingle | Saikawa, E. Schlosser, C.A. Prinn, R.G. Process Modeling of Global Soil Nitrous Oxide Emissions |
| title | Process Modeling of Global Soil Nitrous Oxide Emissions |
| title_full | Process Modeling of Global Soil Nitrous Oxide Emissions |
| title_fullStr | Process Modeling of Global Soil Nitrous Oxide Emissions |
| title_full_unstemmed | Process Modeling of Global Soil Nitrous Oxide Emissions |
| title_short | Process Modeling of Global Soil Nitrous Oxide Emissions |
| title_sort | process modeling of global soil nitrous oxide emissions |
| url | http://hdl.handle.net/1721.1/70546 |
| work_keys_str_mv | AT saikawae processmodelingofglobalsoilnitrousoxideemissions AT schlosserca processmodelingofglobalsoilnitrousoxideemissions AT prinnrg processmodelingofglobalsoilnitrousoxideemissions |