Dynamical Processes of Equatorial Atmospheric Angular Momentum

在这个项目中，PI将探索驱动赤道大气角动量季节内波动的物理过程，这占赤道大气角动量方差的一半。该研究侧重于四个主题：山脉扭矩改变赤道大气角动量矢量的幅度和相位的动力学机制，驱动季节内波动的过程的相对重要性的比较，赤道大气角动量动力学和背景流之间的关系，以及大气过程如何驱动极地运动，即相对于地壳的极位置和固体地球的角动量的赤道分量的波动。再分析和传出长波辐射数据集，以及一个时间序列的极位置将被used.Broader影响：这项研究将感兴趣的固体地球物理科学家和卫星动力学科学家。

In this project the PI will explore the physical processes that drive the intra-seasonal fluctuations of equatorial atmospheric angular momentum, which account for half of the variance of equatorial atmospheric angular momentum. The research focuses on four topics: the dynamical mechanisms by which the mountain torque alters the amplitude and phase of the equatorial atmospheric angular momentum vector, a comparison of the relative importance of the processes driving the intra-seasonal fluctuations, the relationship between equatorial atmospheric angular momentum dynamics and the background flow, and how atmospheric processes drive polar motion, i.e. fluctuations in both the pole position relative to the earth's crust and in the equatorial components of the angular momentum of the solid earth. Reanalysis and outgoing longwave radiation datasets as well as a timeseries of pole position will be used.Broader Impacts: This research will be of interest to solid-earth geophysical scientists and satellite dynamics scientists.