固体潮Love数的基本理论和数值结果  

Basic theory and numerical result of the love number of solid earth tide

作　　者：张捍卫[1] 许厚泽[2] 刘学谦 

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 [3]河南省地震局,郑州450000

出　　处：《地球物理学进展》2004年第2期372-378,共7页Progress in Geophysics

基　　金：国家自然科学基金(40374030)(40234039);地球空间环境与大地测量教育部重点实验室资助项目(020915);中国科学院知识创新工程重要方向项目(KZCX3-SW-132)资助.

摘　　要：　滞弹微椭、自转无海洋、横向均匀地球模型的固体潮模拟理论,已能很好地解释空间大地测量技术的观测成果,但这一地球模型中还没有考虑的一些物理因素(地球横向不均匀和各向异性等),目前在理论上已被人们所重视.本文在毫微伽和毫米精度上,研究了Love数的基本理论,给出了其解析表达式;利用空间大地测量技术对Love数解析表达式的拟合结果,计算了2阶潮汐各个波段内的Love数.研究表明空间大地测量技术观测精度的提高,是精确测定Love数的必要途径之一.The solid tide model theory based on an anelastic, elliptical, rotating, oceanless and transverse\|symmetric earth has been able to explain considerably the observational results in space geodetic techniques. Now some more delicate physical factors that were not included in the earth model like transverse\|asymmetry and anisotropy have become to be focuses theoretically. We investigate the basic theory at ngal\|level of the Love number of the solid tide and the analytical expression. We compute the second\|order Love numbers of each tidal wave with the analytical expression by the use of the fitted results of space geodetic techniques. It is shown that the high precision of the observables in space geodetic techniques is one of the necessities to get accurate the Love numbers.

关 键 词：固体潮 LOVE数 空间测地技术 

分 类 号：P22[天文地球—大地测量学与测量工程]