近50a廣東登陸熱帶氣旋的若干氣候特征

doi:10.3969/2012jms.00**

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近50a廣東登陸熱帶氣旋的若干氣候特征
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                        10.3969/2012jms.00**
                    
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中圖分類號:P444
基金項目:國家科技部重點 (2 0 0 2DIA2 0 0 2 6 )項目資助

SOME CLIMATIC FEATURES OF THE TROPICAL CYCLONES LANDED ONTO GUANGDONG PROVINCE DURING THE RECENT 50 YEARS

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利用《臺風年鑒》／《熱帶氣旋年鑒》[3，4]和廣東降水資料，研究了近52a(1949～2000年)來廣東登陸熱帶氣旋的時、空變化特征。結果表明，52a間，登陸廣東的熱帶氣旋總數(shù)占全國總數(shù)的38％，居沿海各省之首。每年可有1到7個數(shù)量不等的熱帶氣旋登陸廣東，年平均數(shù)為3．9個。小波分析結果表明，至少對于廣東的登陸熱帶氣旋而言，70年代中期是一個明顯的氣候躍變期。前期(1949～70年代中)，登陸熱帶氣旋數(shù)存在三種主要變化周期，即準3a(2～4a)、準7a(6～8a)和準12a(10～16a)周期的變化；后期

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Climatic features of the tropical cyclones landed onto Guangdong provi nce have been studied in this paper by using of the tropical cyclone (here after shorted for TC) track data set ［2,3］ and the rain gauge data in Guangdong pro vince during the recent 52 years (1949～2000). The results show that there were , on the average, 3.9 TC landed onto Guangdong province per year. It has been show n by a wavelet analysis that the middle of the 1970's was a milestone of climate change as far as the temporal variation tendency in the numbers of landing TC i s concerned. During the first half of the 52 year period (1949～1975), The domin a nt varying periods of the landing TC number was qausi-3 (2～4) year, 7 (6～8) ye ars and 12 (10～16) years. During the second half of the period (1976～2000), howe ver, the main variation period was 4～12 years. On decadal scale, there were 5 per iods of plentiful TC landed onto Guangdong during the past 52 years, i.e. periods of 1949～1950,1959～1965,1972～976,1982～1987 and 1991～1996.

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賀海晏,簡茂球,宋麗莉,魏青.近50a廣東登陸熱帶氣旋的若干氣候特征.氣象科學,2003,(4):401-409 He Haiyan, Jian Maoqiu, Song Lili, Wei Qin. SOME CLIMATIC FEATURES OF THE TROPICAL CYCLONES LANDED ONTO GUANGDONG PROVINCE DURING THE RECENT 50 YEARS. Journal of the Meteorological Sciences,2003,(4):401-409

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收稿日期:2002-10-22
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