摘要
对 １９５１～１９９２年青藏高原古里雅冰芯中δ (１８)Ｏ与Ｉ（南方涛动指数），δ(1８)Ｏ与赤道东太平洋ＳＳＴ（海表面温度）的关系进行了分析．在 Ｅ１ Ｎｉｎｏ年，无论是隆冬还是盛夏，古里雅冰芯中δ(１８)Ｏ均减小．表现为明显的降温，平均降温幅度分别为１２℃和 ０．４５℃．在特强 Ｅ１ Ｎｉｎｏ年，平均降温幅度分别为 ２．０３℃和１．４６℃在 Ｌａ Ｎｉｎａ年，盛夏古里雅冰芯中δ(１８)Ｏ增大，表现为明显的增温，平均升温幅度为１．０２℃．在特强Ｌａ Ｎｉｎａ年，平均升温幅度为１．６℃，但隆冬古里雅冰芯中δ(１８)Ｏ变化不明显在非Ｌａ Ｎｉｎａ年，隆冬古里雅冰芯中δ(１８)
The relationships between the δ^（1 8）O in the Guliya ice core on the Tibetan Plateau and the SOI, as well as between the δ^（1 8）O and the SST in the eastern Equatorial Pacific are analyzed. In the E1 Nino years, no matter in midsummer or in midwinter, δ^（1 8）O in the Guliya ice core decreased, showing a marked decrease of temperature. The mean extents of the decrease were 1.2℃ and 0.45℃ respectively, and were 2.03℃ and 1.46℃ respectively in the strongest E1 Nino years; In the La Nina years, δ^（1 8）O in the Guliya ice core in midsummer increased, showing a marked rise of temperature. The mean extents of rising was 1.02℃, and was 1.6℃ in the strongest La Nina years. However, the va- nation of δ^（1 8）O in midwinter was undefined; In non-La Nina years, the linear correlation between δ^（1 8）O in midwinter and SOI in March of the corresponding period, as well as between and SST in January of the corresponding period became obvious.
出处
《冰川冻土》
CSCD
北大核心
2000年第1期23-28,共6页
Journal of Glaciology and Geocryology
基金
国家重点基础研究规划项目!G1998040802
国家攀登计划!KZ951-A1-204-02
KZ951-A1-402
