TY - GEN
T1 - The global distribution of nitrogen deposition in a changing climate
AU - Fu, Joshua S.
AU - Sun, Jian
N1 - Publisher Copyright:
© 2017 Air and Waste Management Association, A and WMA - Finding Common Ground on Climate Change Mitigation and Adaptation. All rights reserved.
PY - 2017
Y1 - 2017
N2 - In this study, we use the MMM from several global chemistry-climate models in ACCMIP to study the global N deposition from present to future and the change of the ratio of NHX over NOy. It turns out that the N deposition will decrease continuously in US and Europe from 2000s to 2050s but may peak in some regions of China and India in 2050s. The NOy deposition dominates most areas in 2000s and coastal US, Eastern China and India in 2050s under the RCP 8.5 scenario. However, the NHX deposition is likely to dominate at the most areas in 2050s under the RCP 4.5 scenario. In addition, the fraction of NHX deposition increases almost everywhere under both RCP scenarios in the future projection, mainly due to the increased NH3 emission. This highlights the fact that although NOy deposition is more critical for most regions in 2000s, the NHX deposition is likely to play a more important role in the future. Regulation for the control of NH3 emission from the agriculture and wasteland may be necessary to mitigate the effect of NHX deposition.
AB - In this study, we use the MMM from several global chemistry-climate models in ACCMIP to study the global N deposition from present to future and the change of the ratio of NHX over NOy. It turns out that the N deposition will decrease continuously in US and Europe from 2000s to 2050s but may peak in some regions of China and India in 2050s. The NOy deposition dominates most areas in 2000s and coastal US, Eastern China and India in 2050s under the RCP 8.5 scenario. However, the NHX deposition is likely to dominate at the most areas in 2050s under the RCP 4.5 scenario. In addition, the fraction of NHX deposition increases almost everywhere under both RCP scenarios in the future projection, mainly due to the increased NH3 emission. This highlights the fact that although NOy deposition is more critical for most regions in 2000s, the NHX deposition is likely to play a more important role in the future. Regulation for the control of NH3 emission from the agriculture and wasteland may be necessary to mitigate the effect of NHX deposition.
KW - Climate change
KW - N deposition
KW - RCP scenario
UR - https://www.scopus.com/pages/publications/85052322069
M3 - Conference contribution
AN - SCOPUS:85052322069
T3 - Air and Waste Management Association, A and WMA - Finding Common Ground on Climate Change Mitigation and Adaptation
SP - 398
EP - 414
BT - Air and Waste Management Association, A and WMA - Finding Common Ground on Climate Change Mitigation and Adaptation
PB - Air and Waste Management Association
T2 - Air and Waste Management Association, A and WMA - Finding Common Ground on Climate Change Mitigation and Adaptation
Y2 - 10 October 2017 through 11 October 2017
ER -