ENSO and West Pacific Warm Pool Climate Variability over the Last Three Centuries

西太平洋暖池(WPWP)是地球上最大的年际气候变化模式--厄尔尼诺南方涛动(ENSO)的一个组成部分。尽管气候变异性在WPWP中很重要，但该地区过去三个世纪的气候学在很大程度上是未知的。该项目由德克萨斯大学奥斯汀分校的研究人员参与，旨在利用所罗门群岛西部省的珊瑚，制作第一个分年度、多世纪以来关于ENSO和WPWP气候变化的记录。研究人员通过测量生长缓慢的珊瑚物种日光纤毛虫的三个核心中的18O，试图在WPWP中生成过去三个世纪的海表面温度和水文变异性的记录。这些记录将能够评估WPWP和ENSO从工业化前到现代的变化。就更广泛的影响而言，资金支持研究生和本科生的教育和培训。这项研究还将开发一个可能重要的高分辨率数据系列，为将WPWP变化与全球气候条件联系起来提供观测基础，并可能发现WPWP和ENSO平均状态的变化是现代人为气候强迫的结果。

The Western Pacific Warm Pool (WPWP) is a component of the largest mode of inter-annual climate variability on the planet, El-Niño Southern-Oscillation (ENSO). Despite the importance of climate variability in the WPWP, the climatology of the region over the last three centuries is largely unknown. This project, involving researchers from the University of Texas at Austin, aims to produce the first sub-annually resolved, multi-century record of ENSO and WPWP climate variability utilizing corals from the Western Province, Solomon Islands. By measuring δ18O in three cores of the slow-growing coral species Diploastrea heliopora, the researchers seek to generate a record of sea surface temperature and hydrologic variability spanning the last three centuries in the WPWP. These records will enable assessment of changes in WPWP and ENSO variability from pre-industrial through modern times. In terms of broader impact, funding supports education and training of a graduate student and an undergraduate student. The research will also develop a potentially important, high-resolution data series that would provide an observational basis for relating WPWP changes to global climate conditions and may find changes in the mean state of the WPWP and ENSO as a result of anthropogenic climate forcing in the modern era.