摘要
利用1951—88年赤道东太平洋海表温度(SST)和1911年以来的厄尼诺事件与反厄尼诺事件年表,分析了它们与洞庭湖平原降水量年际变化的联系,本文得出:近80年来洞庭湖平原降水量年际变化与赤道东太平洋海表温度的联系是稳定的,其中冬半年海温与随后的汛期降水量的联系最密切。当年和次年长沙各月降水量合成距平在厄尼诺年由负到正,在反厄尼诺年由正到负,转折月在当年的8—9月。
The teleconnectlon between the rainfall amount over Dongting lake plain of Hunan associated SST over equatorial eastern pacific and the chronology of ELNino events are examined, and the authol found that, the SST in winter was obviously associated with the following flood season rainfall during 1951-1988, and the teleconnectlon was steady during 1911-1988.In addition, the monthly mean rainfall departure composite distribution trend would be inverse of 20 ELNino events and 14 anti-ELNino events including the same year and the following year during 1911-1988, the transform is from August to September at the same year.
出处
《地理研究》
CSSCI
CSCD
北大核心
1991年第4期77-84,共8页
Geographical Research
关键词
厄尼诺
洞庭湖
平原
降水量
sea surface temperature, precipitation, Dongting Lake plain
