冰芯中所记录的气候异常与ENSO事件
CLIMATE ANOMALY RECORDED IN GULIYA ICE CORE AND ENSO EVENTS
-
摘要: 通过对300BP以来记录于中国古里雅冰芯中的降水和δ18O等环境气候信息记录及EN-SO事件的分析,发现ENSO的发生与古里雅降水异常显著相关。在厄尔尼诺年,古里雅冰芯中的降水与δ18O均负异常,即ENSO与古里雅的降水偏少,温度偏低相联系。Abstract: Examination of the ENSO events and the accum ulated precipit ation and δ18 Ovalues recor dedin the Guliy a icecore, China, showed that the relationship between the occurrence of ENSO events and precipit ation anomaly in Guliya is significant. In the years of El Nino events, the anomalies of precipitaion and δ18 Ovalues in the Guliya icecore were negative anom alies, that is, the ENSO events related to the deficito fprecipitation as well as low temper ature in the west of China.