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DOI	10.1007/s00382-010-0982-0
	Simulation of the anthropogenic aerosols over South Asia and their effects on Indian summer monsoon
	Ji, Zhenming; Kang, Shichang; Zhang, Dongfeng; Zhu, Chunzi; Wu, Jia; Xu, Ying
发表日期	2011
ISSN	0930-7575
EISSN	1432-0894
卷号	36 期号:2019-09-10
英文摘要	A regional climate model coupled with a chemistry-aerosol model is employed to simulate the anthropogenic aerosols including sulfate, black carbon and organic carbon and their direct effect on climate over South Asia. The model is driven by the NCAR/NCEP re-analysis data. Multi-year simulations with half, normal and double emission fluxes are conducted. Results show that the model performs well in reproducing present climate over the region. Simulations of the aerosol optical depth and surface concentration of aerosols are also reasonable although to a less extent. The negative radiative forcing is found at the top of atmosphere and largely depended on emission concentration. Surface air temperature decreases by 0.1-0.5A degrees C both in pre-monsoon and monsoon seasons. The range and intensity of cooling areas enlarge while aerosol emission increases. Changes in precipitation are between -25 and 25%. Different diversifications of rainfall are showed with three emission scenarios. The changes of precipitation are consistent with varieties of monsoon onset dates in pre-monsoon season. In the regions of increasing precipitation, monsoon onset is advanced and vice versa. In northeast India and Myanmar, aerosols lead the India summer monsoon onset advancing 1-2 pentads, and delaying by 1-2 pentads in central and southeast India. These changes are mainly caused by the anomaly of local Hadley circulations and enhancive precipitation. Tibetan Plateau played a crucial role in the circulation changes.
关键词	Indian summer monsoon Regional climate model Aerosols Climate effect
学科领域	Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
来源期刊	CLIMATE DYNAMICS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111615
作者单位	Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Ji, Zhenming,Kang, Shichang,Zhang, Dongfeng,et al. Simulation of the anthropogenic aerosols over South Asia and their effects on Indian summer monsoon[J]. 中国科学院西北生态环境资源研究院,2011,36(2019-09-10).
APA	Ji, Zhenming,Kang, Shichang,Zhang, Dongfeng,Zhu, Chunzi,Wu, Jia,&Xu, Ying.(2011).Simulation of the anthropogenic aerosols over South Asia and their effects on Indian summer monsoon.CLIMATE DYNAMICS,36(2019-09-10).
MLA	Ji, Zhenming,et al."Simulation of the anthropogenic aerosols over South Asia and their effects on Indian summer monsoon".CLIMATE DYNAMICS 36.2019-09-10(2011).