Imprint of the ENSO on Rainfall and Latent Heating Variability over the Southern South China Sea from TRMM Observations

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	Imprint of the ENSO on Rainfall and Latent Heating Variability over the Southern South China Sea from TRMM Observations
	Wang Lei; Huang Ke
刊名	JOURNAL OF OCEAN UNIVERSITY OF CHINA
	2016
卷号	15 期号:2 页码:219-231
关键词	TRMM satellite rainfall latent heating southern South China Sea El Nino-Southern Oscillation (ENSO)
通讯作者	Wang, L (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China. ; Wang, L (reprint author), Guangdong Ocean Univ, Coll Ocean & Meteorol, Guangdong Prov Key Lab Coastal Ocean Variat & Dis, Zhanjiang 524088, Peoples R China.
中文摘要	Analyses of the Tropical Rainfall Measuring Mission (TRMM) datasets revealed a prominent interannual variation in the convective-stratiform rainfall and latent heating over the southern South China Sea (SCS) during the winter monsoon between 1998 and 2010. Although the height of maximum latent heating remained nearly constant at around 7 km in all of the years, the year-to-year changes in the magnitudes of maximum latent heating over the region were noticeable. The interannual variations of the convective-stratiform rainfall and latent heating over the southern SCS were highly anti-correlated with the Ni (n) over tildeo-3 index, with more (less) rainfall and latent heating during La Ni (n) over tildea (El Ni (n) over tildeo) years. Analysis of the large-scale environment revealed that years of active rainfall and latent heating corresponded to years of large deep convergence and relative humidity at 600 hPa. The moisture budget diagnosis indicated that the interannual variation of humidity at 600 hPa was largely modulated by the vertical moisture advection. The year-to-year changes in rainfall over the southern SCS were mainly caused by the interannual variations of the dynamic component associated with anomalous upward motions in the middle troposphere, while the interannual variations of the thermodynamic component associated with changes in surface specific humidity played a minor role. Larger latent heating over the southern SCS during La Ni (n) over tildea years may possibly further enhance the local Hadley circulation over the SCS in the wintertime.
学科主题	Oceanography
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/15546]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	Wang Lei,Huang Ke. Imprint of the ENSO on Rainfall and Latent Heating Variability over the Southern South China Sea from TRMM Observations[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2016,15(2):219-231.
APA	Wang Lei,&Huang Ke.(2016).Imprint of the ENSO on Rainfall and Latent Heating Variability over the Southern South China Sea from TRMM Observations.JOURNAL OF OCEAN UNIVERSITY OF CHINA,15(2),219-231.
MLA	Wang Lei,et al."Imprint of the ENSO on Rainfall and Latent Heating Variability over the Southern South China Sea from TRMM Observations".JOURNAL OF OCEAN UNIVERSITY OF CHINA 15.2(2016):219-231.