| STUDY ON VARIATION CHARACTERISTICS OF SST OBSERVED IN THE PAST 40 YEARS IN THE COASTAL REGION OF SOUTH CHINA |
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| 作者姓名： | 潘蔚娟 钱光明 余克服 陈特固 |
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| 作者单位： | PAN Wei-juan（Guangdong Climate and Agrometeorology Center, Guangzhou 510080 China） ;
QIAN Guang-ming（Guangdong Climate and Agrometeorology Center, Guangzhou 510080 China） ;
YU Ke-fu（South China Sea Institute of Oceanology, CMA, Guangzhou 510301 China） ;
CHEN Te-gu（South China Sea Institute of Oceanology, CMA, Guangzhou 510301 China） ; |
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| 基金项目： | Key project for Natural Science Foundation of China (40231009) |
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| 摘 要： | To study the variation characteristics of SST in coastal south China, observed SST was analyzed for the past 44 years. The results show that the monthly and yearly averaged SST have rising trends, the yearly averaged SST's linearity rising rate is 0.12-0.19 ℃/decade in the years, the rising extents in winter are higher than those in summer. The variability in winter is larger than that in summer, with the largest in February and March. A majority of significant cold or warm events occurred in winter. A wavelet multiresolution method was used to analyze periodical characteristics of SST in coastal south China, all timescale decomposition series are very similar, and high-frequency decompositions within the year are dominant. Low-frequency decompositions show rising trends since the mid-1970.
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| 关 键 词： | 大气环流 中国 南方 变化特性 天气预测 |
STUDY ON VARIATION CHARACTERISTICS OF SST OBSERVED IN THE PAST 40 YEARS IN THE COASTAL REGION OF SOUTH CHINA |
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| PAN Wei-juan,QIAN Guang-ming,YU Ke-fu,CHEN Te-gu.STUDY ON VARIATION CHARACTERISTICS OF SST OBSERVED IN THE PAST 40 YEARS IN THE COASTAL REGION OF SOUTH CHINA[J].Journal of Tropical Meteorology,2007,13(2):177-180. |
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| Authors: | PAN Wei-juan QIAN Guang-ming YU Ke-fu CHEN Te-gu |
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| Institution: | 1. Guangdong Climate and Agrometeorology Center, Guangzhou 510080 China
2. South China Sea Institute of Oceanology, CMA, Guangzhou 510301 China |
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| Abstract: | To study the variation characteristics of SST in coastal south China, observed SST was analyzed for the past 44 years. The results show that the monthly and yearly averaged SST have rising trends, the yearly averaged SST's linearity rising rate is 0.12-0.19 ℃/decade in the years, the rising extents in winter are higher than those in summer. The variability in winter is larger than that in summer, with the largest in February and March. A majority of significant cold or warm events occurred in winter. A wavelet multiresolution method was used to analyze periodical characteristics of SST in coastal south China, all timescale decomposition series are very similar, and high-frequency decompositions within the year are dominant. Low-frequency decompositions show rising trends since the mid-1970. |
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| Keywords: | coastal south China observed SST variation characteristics |
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