| EFFECTS OF ENSO ON THE RELATIONSHIP BETWEEN IOD AND SUMMER RAINFALL IN CHINA |
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| 作者姓名： | 刘宣飞 袁慧珍 管兆勇 |
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| 作者单位： | Key Laboratory of Meteorological Disaster, Nanjing University of Information Science & Technology |
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| 基金项目： | National Science Foundation of China (40475028); a project from Key Laboratory of
Meteorological Disaster of Jiangsu Province (KLME060210) |
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| 摘 要： | Based on the data of 1950 – 1999 monthly global SST from Hadley Center, NCAR/NCEP
reanalysis data and rainfall over 160 weather stations in China, investigation is conducted into the
difference of summer rainfall in China (hereafter referred to as the “CS rainfall”) between the years with
the Indian Ocean Dipole (IOD) occurring independently and those with IOD occurring along with ENSO so
as to study the effects of El Ni?o - Southern Oscillation (ENSO) on the relationship between IOD and the
CS rainfall. It is shown that CS rainfall will be more than normal in South China (centered in Hunan
province) in the years of positive IOD occurring independently; the CS rainfall will be less (more) than
normal in North China (Southeast China) in the years of positive IOD occurring together with ENSO. The
effect of ENSO is offsetting (enhancing) the relationship between IOD and summer rainfall in Southwest
China, the region joining the Yangtze River basin with the Huaihe River basin (hereafter referred to as the
“Yangtze-Huaihe basin”) and North China (Southeast China). The circulation field is also examined for
preliminary causes of such an influence.
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| 关 键 词： | 中国夏季降水 ENSO事件 多媒体 印度洋偶极子 降雨量 再分析资料 厄尔尼诺 南方涛动 |
EFFECTS OF ENSO ON THE RELATIONSHIP BETWEEN IOD AND SUMMER RAINFALL IN CHINA |
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| LIU Xuan-fei,YUAN Hui-zhen and GUAN Zhao-yong.EFFECTS OF ENSO ON THE RELATIONSHIP BETWEEN IOD AND SUMMER RAINFALL IN CHINA[J].Journal of Tropical Meteorology,2009,15(1):59-62. |
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| Authors: | LIU Xuan-fei YUAN Hui-zhen and GUAN Zhao-yong |
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| Institution: | Key Laboratory of Meteorological Disaster,Nanjing University of Information Science & Technology,Nanjing 210044 China |
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| Abstract: | Based on the data of 1950 - 1999 monthly global SST from Hadley Center. NCAR/NCEP reanalysis data and rainfall over 160 weather stations in China,investigation is conducted into the difference of summer rainfall in China (hereafter referred to as the "CS rainfall") between the years with the Indian Ocean Dipole (IOD) occurring independently and those with IOD occurring along with ENSO so as to study the effects of El Ni(n)o - Southern Oscillation (ENSO) on the relationship between IOD and the CS rainfall. It is shown that CS rainfall will be more than normal in South China (centered in Hunan province) in the years of positive IOI) occurring independently; the CS rainfall will be less (more) than normal in North China (Southeast China) in the years of positive IOI) occurring together with ENSO. The effect of ENSO is offsetting (enhancing) the relationship between IOD and summer rainfall in Southwest China,the region joining the Yangtze River basin with the ttuaihe River basin (hereafter referred to as the "Yangtze-Huaihe basin") and North China (Southeast China). The circulation field is also examined for preliminary causes of such an influence. |
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| Keywords: | Climatology summer rainfall in China partial correlation analysis Indian Ocean Dipole ENSO |
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