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学科主题: 地理学::自然地理学
题名: Interannual Variation of Summer Atmospheric Heat Source over the Tibetan Plateau and the Role of Convection around the Western Maritime Continent
作者: 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
通讯作者: Jiang, XW
关键词: CLIMATE FORECAST SYSTEM ; MOISTURE BUDGETS ; MONSOON RAINFALL ; NORTH-ATLANTIC ; CIRCULATION ; CHINA ; PRECIPITATION ; VARIABILITY ; PACIFIC ; EASTERN
刊名: JOURNAL OF CLIMATE
发表日期: 2016
DOI: 10.1175/JCLI-D-15-0181.1
卷: 29, 期:1, 页:121-138
收录类别: SCI
合作性质: 国内
文章类型: Article
部门归属: 环境
英文摘要:  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.
语种: 英语
WOS记录号: WOS:000367431600005
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7887
Appears in Collections:图书馆_期刊论文

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作者单位: 1.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:
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.
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文件名: V.29(1) 121-138 2016.pdf
格式: Adobe PDF
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