Indian Ocean response to rising sea-level (INDOCRISIS)

苏门答腊岛西部近海的沿海地区对于印度洋上大规模气候异常的发展至关重要。当地海面和温跃层温度的变化不仅影响本区域的大气对流和降雨，也影响全球的大气对流和降雨。对印度洋和周围陆地未来和过去气候的模拟仍然不确定，这在很大程度上是因为这些模型在再现这里的气候条件方面存在缺陷。特别是，无论是在模拟还是在印度洋气候重建中，海平面在塑造自上次冰川盛期以来的气候条件中的作用都存在争议。建议重建自上一次冰盛期以来苏门答腊岛西部近海的三个沉积记录的年平均海面温度和温跃层温度以及降雨同位素。此外，将在五个不同的海平面站位测量海面和温跃层温度的范围，以评估这些期间这些参数的范围(或稳定性)。这一努力使得能够检测海平面的变化是否能够改变该地区的海洋和大气条件，从而能够触发整个盆地的环流和降雨异常。

Coastal regions offshore west Sumatra are critical for the development of largescale climate anomalies across the Indian Ocean. Changes in local sea surface and thermocline temperatures affect atmospheric convection and rainfall not only in this region but also across the globe. Simulations of future and past climate of the Indian Ocean and the surrounding landmasses remain uncertain in large part because of the deficiencies of the models in reproducing climate conditions here. In particular, the role of sea-level in shaping climate conditions since the Last Glacial Maximum is disputed, both in simulations and in reconstructions of the Indian Ocean climate. It is proposed to reconstruct mean annual sea surface and thermocline temperatures together with rainfall isotopes in three sedimentary records offshore west Sumatra since the Last Glacial Maximum. In addition, the range of sea surface and thermocline temperatures will be measured in five different sea-level stands in order to assess the range (or stability) of these parameters during those periods. This endeavor allows detecting whether changes in sea-level were capable of changing the ocean and atmosphere conditions in this region that are capable of triggering basin-wide anomalies in circulation and rainfall.