内核地球的自转运动和地球固定参考系的研究  

The research of Inner core Earth rotation and terrestrial reference frame

作　　者：张捍卫[1] 许厚泽[2] 王爱生[1] 

机构地区：[1]徐州师范大学国土信息与测绘工程系,徐州221116 [2]中国科学院测量与地球物理研究所,武汉430077

出　　处：《地球物理学进展》2005年第3期712-717,共6页Progress in Geophysics

基　　金：国家自然科学基金(40374030;40234039)资助

摘　　要：本文研究了内核地球模型下的地球表面的旋转运动和地球形变场的复数矢量球函数表示,以及外壳固定参考架、地球参考系的理论定义和它们之间等价性的理论证明.同时给出了液体外核(FOC)、固体内核(SIC)和整体地球的转动惯量张量和角动量的具体表达式.在考虑到引潮力位对地球形变场的影响下,研究了地幔相对角动量的具体表述.本文的工作是对前人有关理论的扩展和改进,对进一步研究内核地球自转的动力学理论是非常重要的.This paper has investigated the expression on rotational motion of earth＇s surface and Earth＇s deformation fields with complex vector surface spherical harmonic function, theoretical definition of the crust-fixed reference frames and the terrestrial reference system, and theoretical substantiating to the consistency between them. The expressions concerning the moment of inertia and the angular momentum of the fluid outer core （FOC）, the solid inner core （SIC） and the Earth as whole has been given. Considering the cases of tide-generating potential＇s influence on Earth deformations, the relative angular momentum of the mantle has been investigated. This paper is an extension and sharpening to theory of foregone works, and is very importance to more studying dynamical theory on the inner core Earth＇s rotation.

关 键 词：地球自转 地球固体内核 地球形变场 地球参考系 

分 类 号：P311[天文地球—固体地球物理学] P312[天文地球—地球物理学]