Late Cenozoic Plateau Uplift and Climate Change

这项拟议的研究将检验高原抬升是晚新生代气候变化的根本原因这一新假说。具体地说，这项工作将涉及使用两个大气环流模式(GCM)的敏感性测试实验，以及分析晚新生代在取芯的数字信号处理器和ODP序列中的趋势，以监测赤道大西洋、东大西洋和西北太平洋的风尘通量和表层海洋生产力。这项研究的结果应该解决关于晚新生代的几个关键问题，包括地形和二氧化碳变化对区域和全球变冷的相对影响，以及水分平衡模式的变化。

The proposed research will test the new hypothesis that plateau uplift is a fundamental cause of late-Cenozoic climate change. Specifically, this work will involve sensitivity-test experiments with two general circulation models (GCM's) as well as the analysis of late-Cenozoic trends in cored DSP and ODP sequences to monitor windblown dust fluxes and surface-ocean productivity in the equatorial Atlantic, eastern Atlantic and northwest Pacific oceans. The results of this study should address several key questions about the late-Cenozoic, including the relative influence of orographic and CO2 changes to regional and global cooling as well as to changes in moisture-balance patterns.