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《JOURNAL OF TROPICAL METEOROLOGY》 1999-02
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THE RESEARCH ON VARIATIONS OF ONSET TIME OF THE SCS SUMMER MONSOON AND ITS INTENSITY

Liang Jianyin; Wu Shangsen; You Jiping(Guangzhou Institute of Tropical and Oceanic Meteorology, Guanzhou, 510080)  
In this paper, using winds of 850hPa from NCEP reanalysis and OLR, the variations ofboth SW wind components and OLR over South China Sea (SCS) and the relations between themare discussed. An index of the SCS summer monsoon is proposed. The features of intensity andonset time of SCS summer monsoon are analyzed. It has been found that the seasonal variationsof SCS summer monsoon pessess the characteristic of two-peak pattern. The intra-annual variations of,intensity and onset time are linked with the SST anomalies. SCS summer monsoon willstart early and be strong in ElNino year, it is reversed in La Nina year.
【Fund】: 科技部攀登A项目“南海季风试验研究”;;广东省气象局科学基金
【CateGory Index】: P425.42
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