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Interannual Variation of Summer Atmospheric Heat Source over the Tibetan Plateau and the Role of Convection around the Western Maritime Continent
Jiang, XW (Jiang, Xingwen)1,2; Li, YQ (Li, Yueqing)1,2; Yang, S (Yang, Song)3; Yang, K (Yang, Kun)4,5; Chen, JW (Chen, Junwen)3; Jiang, XW
Source PublicationJOURNAL OF CLIMATE
2016
Volume29Issue:1Pages:121-138
DOI10.1175/JCLI-D-15-0181.1
Abstract The impacts of summer atmospheric heat source over the Tibetan Plateau (TP) on regional climate variation have attracted extensive attention. However, few studies have focused on possible causes of the interannual variation of atmospheric heat source over the TP. Total heat (TH) is generally composed of three components: surface sensible heat, latent heat release of condensation (LH), and radiative convergence. In this study, it is found that interannual variation of summer TH is dominated by LH in the central and eastern TP. The atmospheric circulation patterns associated with the TH over the TP in June are different from those in July and August. Large TH is accompanied by a cyclone centered over the South China Sea in June, which is replaced by an anticyclone in July and August. The interannual variation of July-August TH over the central and eastern TP is significantly affected by convection around the western Maritime Continent (WMC) that modulates the LH over the southeastern TP. Enhanced WMC convection induces an anticyclone to the south of the TP, which favors water vapor transport to the southeastern TP and thus an increase in precipitation. Enhanced convection over the southeastern TP may exert a positive feedback on local precipitation through pumping more water vapor from the southern boundary. Both observations and model simulations indicate that the enhanced WMC convection can induce the anticyclone to the south of the TP and convection-circulation is important for maintenance of the anticyclone.
Subject Area自然地理学
WOS IDWOS:000367431600005
Language英语
Indexed BySCI
KeywordClimate Forecast System Moisture Budgets Monsoon Rainfall North-atlantic Circulation China Precipitation Variability Pacific Eastern
Cooperation Status国内
Department环境
SubtypeArticle
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7887
Collection图书馆
Corresponding AuthorJiang, XW
Affiliation1.China Meteorol Adm, Inst Plateau Meteorol, Chengdu 610072, Sichuan, Peoples R China
2.Heavy Rain & Drought Flood Disasters Plateau & Ba, Chengdu, Sichuan, Peoples R China
3.Sun Yat Sen Univ, Dept Atmospher Sci, Guangzhou 510275, Guangdong, Peoples R China
4.Chinese Acad Sci, Key Lab Tibetan Environm Changes & Land Surface P, Inst Tibetan Plateau Res, Beijing, Peoples R China
5.CAS Ctr Excellence Tibetan Plateau Earth Syst Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Jiang, XW ,Li, YQ ,Yang, S ,et al. Interannual Variation of Summer Atmospheric Heat Source over the Tibetan Plateau and the Role of Convection around the Western Maritime Continent[J]. JOURNAL OF CLIMATE,2016,29(1):121-138.
APA Jiang, XW ,Li, YQ ,Yang, S ,Yang, K ,Chen, JW ,&Jiang, XW.(2016).Interannual Variation of Summer Atmospheric Heat Source over the Tibetan Plateau and the Role of Convection around the Western Maritime Continent.JOURNAL OF CLIMATE,29(1),121-138.
MLA Jiang, XW ,et al."Interannual Variation of Summer Atmospheric Heat Source over the Tibetan Plateau and the Role of Convection around the Western Maritime Continent".JOURNAL OF CLIMATE 29.1(2016):121-138.
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