A Model Investigation of Aerosol-Induced Changes in the East Asian Winter Monsoon
Publication in refereed journal

替代計量分析
.

其它資訊
摘要The response of the East Asian winter monsoon (EAWM) circulation to aerosols is studied using a coupled atmosphere‐slab ocean general circulation model. In the extratropics, the aerosol‐induced cooling in the midlatitudes leads to an intensified subtropical jet stream, a deepened East Asian trough, and thus an enhanced EAWM. In the tropics, the local Hadley circulation shifts southward to compensate for the interhemispheric asymmetry in aerosol radiative cooling. Anomalous subsidence at around 10°N leads to a salient anticyclone to the southwest of the Philippines. The associated southwesterlies advect abundant moisture to South China, resulting in local precipitation increases and suggesting a weaker EAWM. The EAWM response to aerosol forcing is thus driven by a competition between tropical and extratropical mechanisms, which has important implications for the future monsoon evolution, as aerosol changes may follow different regional‐dependent trajectories.
出版社接受日期19.08.2019
著者Liu Zhen, Ming Yi, Wang Lin, Bollasina Massimo, Luo Ming, Lau Ngar-Cheung, Yim SteveHung-Lam
期刊名稱Geophysical Research Letters
出版年份2019
月份8
日期28
卷號46
期次16
頁次10186 - 10195
國際標準期刊號0094-8276
電子國際標準期刊號1944-8007
語言英式英語
關鍵詞aerosol, East Asian winter monsoon

上次更新時間 2020-19-10 於 01:40