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Potential feedback between aerosols and meteorological conditions in a heavy pollution event over the Tibetan Plateau and Indo-Gangetic Plain
Yang, JH (Yang, Junhua)1,2; Duan, KQ (Duan, Keqin)1,2; Kang, SC (Kang, Shichang)1,3; Shi, PH (Shi, Peihong)1; Ji, ZM (Ji, Zhenming)4; Kang, SC; Ji, ZM
Source PublicationCLIMATE DYNAMICS
2017
Volume48Issue:9-10Pages:2901-2917
DOI10.1007/s00382-016-3240-2
AbstractA 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.
Subject Area自然地理学
WOS IDWOS:000399431900007
Language英语
Indexed BySCI
KeywordREGIONAL CLIMATE MODEL OPTICAL-PROPERTIES MONSOON PRECIPITATION RCP SCENARIOS MINERAL DUST CHINA SIMULATION AERONET VARIABILITY PROJECTION
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences ; Meteorology & Atmospheric Sciences
Cooperation Status国内
SubtypeArticle
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8256
Collection图书馆
Corresponding AuthorKang, SC; Ji, ZM
Affiliation1.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.
2.Shaanxi Normal Univ, Coll Tourism & Environm, Xian 710119, Peoples R China.
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China.
4.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.
Recommended Citation
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.
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