| THE RELATIONSHIP BETWEEN SOUTH CHINA SEA SOUTHWEST MONSOON ANOMALIES AND IMPORTANT WEATHER IN GUANGDONG PROVINCE DURING THE RAINING SEASONS |
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| 作者姓名： | 谢炯光 纪忠萍 谷德军 梁建茵 |
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| 作者单位： | Guangzhou Central Meteorological Observatory;Guangzhou Central Meteorological Observatory;Guangzhou Institute of
Tropical and Marine Meteorology;Guangzhou Institute of
Tropical and Marine Meteorology |
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| 基金项目： | Research fund for tropical marine meteorology (200423, 200512); Natural Science Foundation of China (40675054); Open research project of China Meteorological Administration (CMATG2006L03) |
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| 摘 要： | The activity of South China Sea southwest monsoon (SCSSM) has direct impacts on the
anomalies of important weather in Guangdong province during the raining seasons. So it is necessary to
explore thoroughly the activity pattern of SCSSM and its relationship with important weather anomalies in
the province. In this paper, the methods of composite analysis and correlation statistics are used to study
the relationship between the onset date and intensity of SCSSM and the important weather, such as
precipitation trends in Guangdong province during the annually first and second raining seasons, the timing
of the annually first and last typhoon and the number of typhoons landing in Guangdong province. The
results show that the rainfall is less than normal during the first raining season, but more than normal
during the second one and there are more tropical cyclones landing in Guangdong province in the years of
early SCSSM onset. The rainfall is more than normal during the second raining season and there are more
tropical cyclones landing in Guangdong province in the years of strong SCSSM. The relationship between
the SST of April - June, July - September and previous winter (December - February) and 500 hPa
geopotential height and the onset date and intensity of SCSSM is analyzed. Some mechanisms between the
onset dates and intensity of SCSSM and the important weather anomalies in Guangdong province are
preliminarily explored. The results can be used for reference in short-term climate forecast.
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| 关 键 词： | southwest monsoon raining season monsoon onset monsoon intensity |
THE RELATIONSHIP BETWEEN SOUTH CHINA SEA SOUTHWEST MONSOON ANOMALIES AND IMPORTANT WEATHER IN GUANGDONG PROVINCE DURING THE RAINING SEASONS |
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| XIE Jiong-guang,JI Zhong-ping,GU De-jun and LIANG Jian-yin.THE RELATIONSHIP BETWEEN SOUTH CHINA SEA SOUTHWEST MONSOON ANOMALIES AND IMPORTANT WEATHER IN GUANGDONG PROVINCE DURING THE RAINING SEASONS[J].Journal of Tropical Meteorology,2008,14(2):113-116. |
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| Authors: | XIE Jiong-guang JI Zhong-ping GU De-jun and LIANG Jian-yin |
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| Institution: | 1. Guangzhou Central Meteorological Observatory, Guangzhou 510080 China
2. Guangzhou Institute of Tropical and Marine Meteorology, CMA, Guangzhou 510080 China |
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| Abstract: | The activity of South China Sea southwest monsoon (SCSSM) has direct impacts on the
anomalies of important weather in Guangdong province during the raining seasons. So it is necessary to
explore thoroughly the activity pattern of SCSSM and its relationship with important weather anomalies in
the province. In this paper, the methods of composite analysis and correlation statistics are used to study
the relationship between the onset date and intensity of SCSSM and the important weather, such as
precipitation trends in Guangdong province during the annually first and second raining seasons, the timing
of the annually first and last typhoon and the number of typhoons landing in Guangdong province. The
results show that the rainfall is less than normal during the first raining season, but more than normal
during the second one and there are more tropical cyclones landing in Guangdong province in the years of
early SCSSM onset. The rainfall is more than normal during the second raining season and there are more
tropical cyclones landing in Guangdong province in the years of strong SCSSM. The relationship between
the SST of April - June, July - September and previous winter (December - February) and 500 hPa
geopotential height and the onset date and intensity of SCSSM is analyzed. Some mechanisms between the
onset dates and intensity of SCSSM and the important weather anomalies in Guangdong province are
preliminarily explored. The results can be used for reference in short-term climate forecast. |
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| Keywords: | southwest monsoon raining season monsoon onset monsoon intensity |
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