| AN ANALYSIS ON INTERDECADAL VARIATIONS OF TROPICAL CYCLONE PRECIPITATION IN GUANGDONG PROVINCE OF CHINA |
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| 作者姓名： | 袁金南 郑彬 |
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| 作者单位： | Guangzhou Institute of Tropical and Marine Meteorology, CMA, Guangzhou 510080 China;Guangzhou Institute of Tropical and Marine Meteorology, CMA, Guangzhou 510080 China |
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| 基金项目： | Natural Science Foundation of Guangdong Province (5300001); Natural Science Foundation of China (90715031, 40875026); Project of Science Planning of Guangdong Province (2008B030303025) |
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| 摘 要： | The interdecadal variations of tropical cyclones(TCs) and their precipitation over Guangdong Province are investigated using the observational data of TCs and precipitation from 26 observational stations in the province from 1951 to 2005.The results show that the TCs precipitation shows an oscillation with a peak value of about 25 years,with both the numbers of the Guangdong-influencing TCs and TCs formed in the western North Pacific oscillating with a peak value of about 23 years.The correlations are highly positive between the interdecadal variation of TC precipitation over the province and these numbers.The interdecadal variation of TC precipitation in the province shows significant negative correlations with the interdecadal variation of annual mean SST in some parts of the western North Pacific and the interdecadal variation of annual mean 500 hPa geopotential heights in some parts of the middle and high latitudes over the North Pacific.In general,there are high mean SSTs on the equator from central to eastern Pacific,low mean SSTs in the middle and high latitudes over the North Pacific and a main strong East Asian trough over the North Pacific in the period of less TC precipitation as compared with the period of more TC precipitation over the province.
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| 关 键 词： | interdecadal features of precipitation statistical analysis tropical cyclones affecting Guangdong Province |
| 收稿时间： | 2010/8/25 0:00:00 |
| 修稿时间： | 2011/12/6 0:00:00 |
AN ANALYSIS ON INTERDECADAL VARIATIONS OF TROPICAL CYCLONE PRECIPITATION IN GUANGDONG PROVINCE OF CHINA |
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| YUAN Jin-nan and ZHENG Bin.AN ANALYSIS ON INTERDECADAL VARIATIONS OF TROPICAL CYCLONE PRECIPITATION IN GUANGDONG PROVINCE OF CHINA[J].Journal of Tropical Meteorology,2012,18(1):65-71. |
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| Authors: | YUAN Jin-nan and ZHENG Bin |
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| Institution: | Guangzhou Institute of Tropical and Marine Meteorology, CMA, Guangzhou 510080 China |
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| Abstract: | The interdecadal variations of tropical cyclones (TCs) and their precipitation over Guangdong Province are investigated using the observational data of TCs and precipitation from 26 observational stations in the province from 1951 to 2005. The results show that the TCs precipitation shows an oscillation with a peak value of about 25 years, with both the numbers of the Guangdong-influencing TCs and TCs formed in the western North Pacific oscillating with a peak value of about 23 years. The relationships are highly positive between the interdecadal variation of TC precipitation over the province and these numbers. The interdecadal variation of TC precipitation in the province shows significant negative relationships with the interdecadal variation of annual mean SST in some parts of the western North Pacific and the interdecadal variation of annual mean 500 hPa geopotential heights in some parts of the middle and high latitudes over the North Pacific. In general, there are high mean SSTs on the equator from central to eastern Pacific, low mean SSTs in the middle and high latitudes over the North Pacific and a main strong East Asian trough over the North Pacific in the period of less TC precipitation as compared with the period of more TC precipitation over the province. |
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| Keywords: | interdecadal features of precipitation statistical analysis tropical cyclones affecting Guangdong Province |
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