Investigation of the Nutations of the Earth by Radio Interferometry

地球对（近）昼夜扭矩的响应 太阳和月亮的应用提供了一种研究 地球的特征和地球的相互作用 地幔及其流体部分（流体外核、大气和 海洋）。 私人执业律师会透过以下方法研究这些问题： 甚长基线测量（VLBI） 地球在太空中的自转轴-地球的章动， 解决有关准确性的问题， 章动系列系数可以从VLBI数据确定， 以及对所观察到的 系数和那些从理论模型计算的 地球对近昼夜扭矩的反应。

The response of the Earth to the (nearly) diurnal torques applied by the Sun and the Moon provides a means for studying the characteristics of the Earth and the interactions of the Earth's mantle with its fluid parts (fluid-outer core, atmosphere and oceans). The PIs will study these problems through the use of very-long-baseline (VLBI) measurements of the motions of the Earth's rotation axis in space - the nutations of the Earth, addressing issues concerning the accuracy with which the nutation series coefficients can be determined from VLBI data, and at the interpretation of the differences between the observed coefficients and those computed from theoretical models of the response of the Earth to the nearly diurnal torques.