| RELATIONSHIP BETWEEN DIPOLE OSCILLATION OF SSTA OF AND TEMPERATURE IN CHINA |
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| 作者姓名： | 肖子牛 晏红明 李崇银 |
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| 作者单位： | 肖子牛,晏红明(Meteorological Sciences Institute of Yunnan Province , Kunming, 650034 China);李崇银(LASG. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100081 China)
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| 基金项目： | 国家重点基础研究发展计划(973计划)，云南省自然科学基金 |
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| 摘 要： | The work is a general survey SSTA data of the Indian Ocean and of precipitation at 160 Chinese weather stations over 1951～1997(47years).It reveals that the dipole oscillation of SST,especially the dipole index of March～May,in the eastern and western parts of the ocean correlates well with the precipitation during the June～August raining season in China.As shown in analysis of 500-hPa Northern Hemisphere geopotential height height by NCEP for 1958-1995,the Indian Ocean dipole index(IODI) is closely related with geopotential height anomalies in the middle-and higher-latitudes in the Eurasian region.As a negative phase year of IODI corresponds to significant Pacific-Japan(PJ) wavetrain,it is highly likely that the SST for the dipole may affect the precipitation in China through the wavetrain.Additionally,correlation analysis of links between SST dipole index of the Indian Ocean region and air temperature in China also shows good correlation between the former and wintertime temperature in southern China.
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| 关 键 词： | 印度洋 海洋表面温度 降水 温度 中国气象站 相关分析 SSTA |
RELATIONSHIP BETWEEN DIPOLE OSCILLATION OF SSTA OF AND TEMPERATURE IN CHINA |
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| XIAO Zi-niu,YAN Hong-ming and LI Chong-yin.RELATIONSHIP BETWEEN DIPOLE OSCILLATION OF SSTA OF AND TEMPERATURE IN CHINA[J].Journal of Tropical Meteorology,2002,8(2):121-131. |
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| Authors: | XIAO Zi-niu YAN Hong-ming and LI Chong-yin |
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| Institution: | 1. Meteorological Sciences Institute of Yunnan Province , Kunming, 650034 China
2. LASG. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100081 China |
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| Abstract: | The work is a general survey using SSTA data of the Indian Ocean and of precipitation at 160Chinese weather stations over 1951～1997 (47 years). It reveals that the dipole oscillation of SST, especially the dipole index of March～May, in the eastern and western parts of the ocean correlates well with the precipitation during the June～August raining season in China. As shown in analysis of 500-hPa Northern Hemisphere geopotential height height by NCEP for 1958～1995, the Indian Ocean dipole index (IODI) is closely related with geopotential height anomalies in the middle- and higher- latitudes in the Eurasian region. As a negative phase year of IODI corresponds to significant Pacific-Japan (P J) wavetrain, it is highly likely that the SST for the dipole may affect the precipitation in China through the wavetrain. Additionally, correlation analysis of links between SST dipole index of the Indian Ocean region and air temperature in China also shows good correlation between the former and wintertime temperature in southern China. |
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| Keywords: | Indian Ocean SSTA dipole indexes precipitation in raining seasons: correlation analysis |
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