Pleistocene Interaction Between the Atmosphere and Ocean in the Eastern Equatorial Pacific

大气环流的历史是古气候学的一个重要组成部分，而对深海岩心中发现的风沙沉积物进行分析，是重建大气环流的最佳方法。该提案要求支持使用一系列新的活塞芯，以重建赤道太平洋海洋和大气环流的历史。这项研究的科学目标是：1)重建更新世北半球信风的历史；2)确定气候变化与赤道太平洋生产力之间的关系；3)确定该区域轨道强迫和气候-海洋响应的性质。这项研究很重要，因为它将记录大气对气候强迫变化的反应，记录海洋对大气环流变化的反应，并为测试大气环流模型的敏感性提供重要的数据库。

The history of atmospheric circulation is an important element of paleoclimatology and the best reconstructions of atmospheric circulation come from analyzing the aeolian sediments found in deep sea cores. This proposal requests support to use a series of new piston cores to reconstruct the history of oceanic and atmospheric circulation in the equatorial Pacific Ocean. The scientific goals of this study are to: 1) reconstruct the history of northern hemisphere trade winds for the Pleistocene; 2) determine the relationship between climate change and productivity in the equatorial Pacific; and 3) determine the nature of orbital forcing and climatic-oceanic response in this region. This research is important because it will provide documentation of the response of the atmosphere to changes in climatic forcing, documentation of the response of the oceans to changes in atmospheric circulation, and important data bases to test the sensitivity of atmospheric General Circulation Models.