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Study on density distribution of parameter ellipsoid

HAO Xiao-guang,LIU Gen-you(Institute of Geodesy and Geophysics,Key Lab. Dynamical Geodesy,CAS,Wuhan 430077,China)  
After Parameter Ellipsoid concept has been presented,as well as its geophysical and mathematic characteristics have been preliminarily studied,we research the problem about density distribution of Parameter Ellipsoid in this paper. The results indicate:when the inner density interface extends to the Earth surface,these two quasi-equal level condition are completely equivalent. Under the condition of quasi-equal level condition,density distribution of homogeneous layers are conflict with the real Earth density distribution. So the density of the Earth is related to latitude.
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