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青藏高原达索普冰川浅孔冰芯中δ１８Ｏ值与大尺度海表面温度（ＳＳＴ）之间存在显著的相关关系．显著相关区主要分布在海洋的洋流区，不同海区ＳＳＴ通过对大气环流的作用影响达索普冰川的降水和水汽来源．当大气环流呈现出有利于海洋水汽向青藏高原南部冰川输送的形势时，冰芯中δ１８Ｏ值减小．当大气环流呈现出不利于海洋水汽却有利于内陆水汽向青藏高原南部冰川输送的形势时，冰芯中１８Ｏ值增大相关分析表明，在诸多影响 １８Ｏ值的海温因子和环流因子中，北太平洋海流ＡＳ区平均ＳＳＴ，南海副高北界位置对达索普冰川隆冬时的１８Ｏ值有重要影响作用；北太平洋海流Ｂ区平均ＳＳＴ，北半球极涡中心位置和太平洋极涡强度对达索普冰川盛夏时的１８Ｏ值有重要影响作用．这些因子的变化制约着冰芯中１８Ｏ值的大小，其影响都具有先兆性．
There is a significant correlation between the δ18O value and large-scale sea surface temperature (SST) in the Dabiepu glacier ice core of the Qinghai-Tibet Plateau. Significantly related areas are mainly distributed in the ocean current area. Different SSTs influence the precipitation and water vapor source of Dasuopu glacier through the effect on the general circulation. When the general circulation presents a favorable situation for the transport of oceanic water vapor to the glaciers in the southern Tibetan Plateau, the δ18O value in ice cores decreases. When the atmospheric circulation is unfavorable to ocean water vapor but conducive to the transport of inland water vapor to the glaciers in the southern Tibetan Plateau, correlation analysis shows that the 18O values in the ice core increase. Among the many SSTs and circulation factors that affect the 18O value, The average SST in the North Pacific Ocean AS region and the northern boundary of the South China Sea subtropical high have an important effect on the 18O value during the winter Dasuopu glacier in winter. The average SST in the North Pacific Ocean, the polar vortex center in the Northern Hemisphere, Glacial summer 18O value has an important impact. The changes of these factors restrict the value of 18O in the ice core, the impact of which is aura.