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《Chinese Journal of Geophysics》 1996-05
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TIDAL DEFORMATION OF A SELF-ROTATING,ELLIPTICAL, HETEROGENEOUS EARTH

LI GUO-YING;PENG LONG-HUI; XU HOU-ZE(Institute of Geodesy and Geophysics , Academia Sinica,Wuhan 430077, China)  
At present, there are obvious difference between the results given by different authors about the tidal response of a self-rotating, elliptical,heterogeneous earth (SREHI). In particular, the latitude dependece of Love number and tidal gravimetric factor given by different authors are quite different.D this work,we use our tidal modeling theory for a laterally heterogeneous,self-rotating, elliptical, viscoeiastic earth to investigate ,as a particular case,the tidal deformation and gravitational potential variation of the SREHI earth. The results indicate that the ratio between Love number h_+,which describe the latitude dependence of th radial displacement ,and the spherical symmetric part of Love number,h_0+ δh_0,are smaller than 0‰ :0.27‰ for O_1 wave, 0.19‰ for M_2 wave, 0.49‰ for M_3 wave,0.88‰ for M_4 wave;The ratio between the Love number k_+, which depict the latitude dependence of potential variation due to deformation,and the spherical symmetric part of Lovenumber,k_0+δk_0, are smauer than 3.0‰:2.67‰ for O_1 wave; 1.89‰ for M_2 wave; 2.24‰ for M_3 wave, 2.70‰ for M_4 wave.
【Key Words】: Self-rotating and elliptical Earth tides Perturbation method Generalized spherical harmonics.
【Fund】: 国家自然科学基金
【CateGory Index】: P183.5
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