Potential feedback between aerosols and meteorological conditions in a heavy pollution event over the Tibetan Plateau and Indo-Gangetic Plain

doi:10.1007/s00382-016-3240-2

	Potential feedback between aerosols and meteorological conditions in a heavy pollution event over the Tibetan Plateau and Indo-Gangetic Plain
	Yang, JH (Yang, Junhua)3,4; Duan, KQ (Duan, Keqin)3,4; Kang, SC (Kang, Shichang)1,3; Shi, PH (Shi, Peihong)3; Ji, ZM (Ji, Zhenming)2; Kang, SC ; Ji, ZM
刊名	CLIMATE DYNAMICS
	2017
卷号	48 期号:9-10 页码:2901-2917
关键词	REGIONAL CLIMATE MODEL OPTICAL-PROPERTIES MONSOON PRECIPITATION RCP SCENARIOS MINERAL DUST CHINA SIMULATION AERONET VARIABILITY PROJECTION
DOI	10.1007/s00382-016-3240-2
文献子类	Article
英文摘要	A regional climate model, WRF-Chem, was used to investigate the feedback between aerosols and meteorological conditions in the planetary boundary layer (PBL) over the Tibetan Plateau (TP) and Indo-Gangetic Plain (IGP). The numerical experiments (15-km horizontal resolution) with and without the aerosol effects are driven by reanalysis of data for 1-31 March 2009, when a heavy pollution event (13-19 March) occurred. The results showed that the model captured the spatial and temporal meteorological conditions and aerosol optical characteristics during the heavy pollution days. Aerosols induced cooling at the surface and warming in the middle troposphere due to their radiative effects, and resulted in a more stable PBL over the IGP. Aerosol-induced 2-m relative humidity (RH) was increased. The stable PBL likely led to the surface PM2.5 concentration increase of up to 21 mu g m(-3) (15 %) over the IGP. For the TP, the atmospheric profile did not drastically change due to fewer radiative effects of aerosols in the PBL compared with those over the IGP. The aerosol-induced RH decreased due to cloud albedo and cloud lifetime effect, and led to a reduction in surface PM2.5 concentration of up to 17 mu g m(-3) (13 %). These results suggest a negative and positive feedback over the TP and IGP, respectively, between aerosol concentrations and changes of aerosolinduced meteorological conditions. Similar positive feedbacks have been observed in other heavily polluted regions (e.g., the North China Plain). The results have implications for the study of air pollution on weather and environment over the TP and IGP.
学科主题	自然地理学
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
WOS记录号	WOS:000399431900007
内容类型	期刊论文
源URL	[http://ir.itpcas.ac.cn/handle/131C11/8256]
专题	青藏高原研究所_图书馆
通讯作者	Kang, SC; Ji, ZM
作者单位	1.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China. 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Bldg 3,Courtyard 16,Lincui Rd, Beijing 100101, Peoples R China. 3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, 320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China. 4.Shaanxi Normal Univ, Coll Tourism & Environm, Xian 710119, Peoples R China.
推荐引用方式 GB/T 7714	Yang, JH ,Duan, KQ ,Kang, SC ,et al. Potential feedback between aerosols and meteorological conditions in a heavy pollution event over the Tibetan Plateau and Indo-Gangetic Plain[J]. CLIMATE DYNAMICS,2017,48(9-10):2901-2917.
APA	Yang, JH .,Duan, KQ .,Kang, SC .,Shi, PH .,Ji, ZM .,...&Ji, ZM.(2017).Potential feedback between aerosols and meteorological conditions in a heavy pollution event over the Tibetan Plateau and Indo-Gangetic Plain.CLIMATE DYNAMICS,48(9-10),2901-2917.
MLA	Yang, JH ,et al."Potential feedback between aerosols and meteorological conditions in a heavy pollution event over the Tibetan Plateau and Indo-Gangetic Plain".CLIMATE DYNAMICS 48.9-10(2017):2901-2917.