IMPACT OF LATENT HEAT FLUX ON INDIAN SUMMER MONSOON DURING EL NINO/LA NINA YEARS

被引:7
作者
Subrahmanyam, M. V. [1 ]
Wang Dong-xiao [1 ]
机构
[1] Chinese Acad Sci, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China
关键词
latent heat flux; Southwest Monsoon; All India Rainfall; El Nino; La Nina; SEA-SURFACE TEMPERATURE; NORTHERN OCEANS; ARABIAN SEA; ENSO; VARIABILITY; ANOMALIES; RAINFALL;
D O I
10.3969/j.issn.1006-8775.2011.04.013
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
El Nino or La Nina manifest in December over the Pacific and will serve as an index for the forecasting of subsequent Indian summer monsoon, which occurs from June to mid-September. In the present article, an attempt is made to study the variation of latent heat flux (LHF) over the north Indian Ocean during strong El Nino and strong La Nina and relate it with Indian monsoon rainfall. During strong El Nino the LHF intensity is higher and associated with higher wind speed and lower cloud amount. During El Nino all India rainfall is having an inverse relation with LHF. Seasonal rainfall is higher in YY+1 (subsequent year) than YY (year of occurrence). However there is a lag in rainfall during El Nino YY+1 from June to July when compared with the monthly rainfall.
引用
收藏
页码:430 / 440
页数:11
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