Lithogenic Response to Seasonal Monsoon Forcing: Proxy Evaluation and Calibration

该项目将确定从西北印度洋的一系列沉积物陷阱和表层沉积物中收集的风尘颗粒的粒度和质量通量。来自系泊气象浮标、卫星图像、气溶胶收集器和颗粒地球化学的辅助数据将由合作者提供。其目标是量化颗粒大小和风力强度之间的关系，考虑到季节性季风、大气和水柱海浪以及颗粒底部重新分布的影响。得到的方程可以用来量化过去气候状态下的风向和风强，这是全球环流模型中的一个基本变量。

This project will determine grain size and mass flux of eolian particles collected in a series of sediment traps and surface sediments from the northwest Indian Ocean. Ancillary data from moored meteorological buoys, satellite images, aerosol collectors, and particle geochemistry will be provided by collaborators. The goal is to quantify the relationship between grain size and wind strength, taking into account the effects of seasonal monsoons, atmospheric and water-column seavenging, and bottom redistribution of particles. Resulting equations can be applied to quantify direction and strength of winds during past climatic states, an essential variable in global circulation models.