The Western Pacific Warm Pool (WPWP) constitutes an important component within the global climate system by providing an enormous amount of heat and moisture to the global atmosphere. Nevertheless, past variability of oceanography and climate across the WPWP is still debated. Here, we compile newly generated and published surface and thermocline temperature and seawater stable oxygen isotope (δ¹⁸O_SW) records from the WPWP north and south of the equator to monitor its variability, particularly in response to astronomical forcing, over the last glacial‐interglacial cycle. We find a coherent first‐order variability in all records from the northern and southern WPWP sites over the past 160 kyr indicating a relatively stable WPWP spatial structure. The second‐order variability is modulated by regionally varying influences. Precipitation varied uniformly across the WPWP marine realm. Thermocline records illustrate the influence of both northern and southern Pacific waters on the WPWP. Differences between the thermocline temperature records are attributed to the differing effect of obliquity on the thermocline water masses influencing the individual sites. Precession exerts an influence on the thermocline at both northern and southern WPWP sites. Variations in thermocline conditions in the precession band are attributed to a combination of modifications in the thermocline source waters, changes in the regional atmospheric circulation and the El Niño‐Southern Oscillation regime.

中文翻译：

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在过去160年的时间里，天文学强迫对西太平洋暖池内表面和跃层的变化的影响

通过向全球大气提供大量的热量和水分，西太平洋暖池（WPWP）构成了全球气候系统中的重要组成部分。尽管如此，WPWP中过去海洋学和气候的变化仍在争论中。在这里，我们编译新生成并公布表面和温跃层温度和海水稳定氧同位素（δ ¹⁸ ö _SW）来自WPWP赤道以南和北纬的记录，以监测其变化，尤其是在最后一次冰冰间期循环中响应天文强迫的情况下。我们发现在过去160年的时间里，北部和南部WPWP站点的所有记录中的一阶变化都是一致的，这表明WPWP空间结构相对稳定。二阶可变性受区域变化影响的调节。整个WPWP海洋领域的降水量均匀一致。温跃层记录说明了太平洋北部和南部水域对WPWP的影响。温跃层温度记录之间的差异归因于倾斜对温跃层水团影响的不同影响。进动对WPWP北部和南部站点的温跃层都产生影响。