Angular Momentum Variability, Atmospheric Dynamics and the Relationship with Earth Motions

0429975：《角动量变率、大气动力学及其与地球运动的关系》；大气与环境研究摘要本项目将进一步研究大气角动量及其相关力矩，特别侧重于大气角动量的轴向和赤道分量的变异性的各个方面，这些方面在以前的研究中没有被仔细研究过。将使用观测数据以及大气模式相互比较项目的气候模式数据。有了地球自转变化的独立观测，就可以使用从模拟的风场和压力场计算出的角动量对大气模型进行独立测试。我们还将研究大气驱动钱德勒摆动波动的机制。这项工作的结果将通过互联网和同行评议的出版物向科学界公布，因此将对气候动力学和气候模型产生广泛影响。

0429975: "Angular momentum variability, atmospheric dynamics & the relationship with Earth Motions"Salstein, David A.; Atmospheric and Environmental Research IncAbstractThis project will further investigations in atmospheric angular momentum and the associated torques, focusing specifically on various aspects of variability in the axial and equatorial components of atmospheric angular momentum which have not been closely examined in previous studies. Observational data, as well as climate model data from the Atmospheric Model Intercomparison Project will be used. The availability of independent observations of changes in the Earth's rotation will allow an independent test of atmospheric models using angular momentum computed from the modeled wind and pressure fields. The mechanisms by which the atmosphere drives Chandler wobble fluctuations will also be examined. The results of this work will be made available to the scientific community via the Internet and via peer- reviewed publications, and will, therefore, have broad impacts related to climate dynamics and climate modeling.