摘要
青藏高原古里雅芯中δ18O与SOI以及δ18O与赤道东太平洋SST的关系被分析 .在ElNi a年 ,无论是隆冬还是盛夏 ,古里雅冰芯中δ18O均减小 ,表现为明显的降温 ;在LaNi a年 ,盛夏时古里雅冰芯中δ18O增大 ,表现为明显的增温 .但隆冬时古里雅冰芯中δ18O变化不明显 ;在非LaNi a年 ,隆冬时冰芯中δ18O与同期 3月SOI和同期 1月赤道东太平洋SST的线性相关关系变得显著 .
The relationship between the δ 18 O in the ice core of the Guliya Ice Cap on the Tibetan Plateau and the southern oscillation index (SOI), as well as between the δ 18 O and the sea surface temperature (SST) in the eastern Equatorial Pacific are analyzed. In the El Nio years, no matter in midsummer or in midwinter, the δ 18 O in the Guliya ice core decreases, indicating a marked cooling. In the La Nia years, the δ 18 O increases in midsummer, suggesting a significant warming. However, the δ 18 O variation in midwinter is undefined. In the non La Nia years, the linear correlation between the δ 18 O in midwinter and the SOI in March of the corresponding period, as well as between the δ 18 O in midwinter and the SST in January of the corresponding period become obvious.
出处
《晓庄学院自然科学学报》
CAS
2000年第4期76-80,86,共6页
Journal of Natural Science of Hunan Normal University
基金
湖南省教委资助项目(26980510)
