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基于东天山庙尔沟冰芯1953～2004年的δ~(18)O序列,利用冰芯钻取点附近的气象站观测资料、NCEP/NCAR再分析数据等资料,初步分析了庙尔沟冰芯δ~(18)O序列与ENSO事件之间的关系。研究表明,庙尔沟冰芯δ~(18)O年序列与当年10月至次年3月间的热带太平洋东部地区(约170°～80°W)海表温度、亚洲西风气流500mb纬向风速及当年7～12月的ENSO指数之间均存在显著负相关。另外,ENSO事件对古里雅冰芯、马兰冰芯及庙尔沟冰芯δ~(18)O序列的影响与其对达索普冰芯及Sajama冰芯δ~(18)O序列的影响明显不同,说明ENSO事件对不同气候区冰芯δ~(18)O序列的影响机制可能存在差异。
Based on δ ~ (18) O sequences from 1953 to 2004 in the Miaergou ice core of East Tianshan Mountains, using the observational data of meteorological stations near the ice core drilling sites and the NCEP / NCAR reanalysis data, Relationship between core δ ~ (18) O sequences and ENSO events. The results show that the δ 18 O sequence of the ice core of the Miaolu Gully and the sea surface temperature in the eastern tropical Pacific Ocean (about 170 ° -80 ° W) between October and March of the same year, There was a significant negative correlation between wind speed and ENSO index from July to December of that year. In addition, the effect of ENSO events on δ ~ (18) O sequences of Guliya ice core, Malan ice core and Miaergou ice core is significantly different from that of δ18OO sequence of Dasuopo ice core and Sajama ice core , Indicating that there may be some difference in the mechanism of ENSO event affecting δ ~ (18) O sequences in ice cores of different climate regions.