形变地球对引潮力和应力的响应  

The response of the deformable earth to tidal generating forces and stresses

作　　者：卢小平[1] 张光胜[1] 

机构地区：[1]河南理工大学测绘与国土信息工程学院,河南焦作454100

出　　处：《测绘科学》2007年第2期24-25,共2页Science of Surveying and Mapping

摘　　要：地球在各种力学机制的作用下产生了形变,形变又导致地球引力位的变化,即形变附加位或Euler引力位增量。本文基于矢量球函数的基本理论,讨论了引潮力和地表应力对地球形变和引力位增量的影响。认为地球潮夕形变和负载形变只有球形场位移,而没有环形场位移。而地表应力产生的形变既有球形场位移又有环形场位移。The earth will come into being deformation under the function of every kind of mechanical mechanisms,this deformation a-gain will induce the change of gravitational potential,namely,deform-able accessional potential or Eulerian increments of gravitational potential.Based on the theory of vector spherical harmonic functions,this paper discusses influences of the tidal generating force,and the surface stress on the earth deformation as well as the incremental gravitational potential.This work can provide reference and gist for theoretical research of the earth deformation.

关 键 词：引潮力 应力 地球形变 

分 类 号：P223[天文地球—大地测量学与测量工程]