气候变化领域集成服务门户(CCPortal): Interannual Variation of Summer Atmospheric Heat Source over the Tibetan Plateau and the Role of Convection around the Western Maritime Continent

CCPortal

DOI	10.1175/JCLI-D-15-0181.1
	Interannual Variation of Summer Atmospheric Heat Source over the Tibetan Plateau and the Role of Convection around the Western Maritime Continent
	Jiang, Xingwen; Li, Yueqing; Yang, Song; Yang, Kun; Chen, Junwen
通讯作者	Jiang, XW (通讯作者)
发表日期	2016
ISSN	0894-8755
EISSN	1520-0442
起始页码	121
结束页码	138
卷号	29 期号:1
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.
关键词	MONSOON RAINFALL NORTH-ATLANTIC PRECIPITATION VARIABILITY CLIMATE PACIFIC EASTERN IMPACT CHINA ASSOCIATIONS
英文关键词	Circulation; Dynamics; Large-scale motions; Atm; Ocean Structure; Phenomena; Monsoons; Physical Meteorology and Climatology; Latent heating; cooling; Variability; Interannual variability
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000367431600005
来源期刊	JOURNAL OF CLIMATE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258779
推荐引用方式 GB/T 7714	Jiang, Xingwen,Li, Yueqing,Yang, Song,et al. Interannual Variation of Summer Atmospheric Heat Source over the Tibetan Plateau and the Role of Convection around the Western Maritime Continent[J]. 中国科学院青藏高原研究所,2016,29(1).
APA	Jiang, Xingwen,Li, Yueqing,Yang, Song,Yang, Kun,&Chen, Junwen.(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).
MLA	Jiang, Xingwen,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).