Based on the preliminary reference Earth model (PREM), the deformation theory for a spherically stratified and non-rotating Earth with perfectly elastic and isotropic structural relation (SNREI Earth) is employed to investigate the deformation characteristics of the Earth under different forces.

The selection of a satellite-Earth model for the space-borne SAR simulation significantly influences the raw echoed signal and imaging simulation.

Radially heterogeneous spherical earth model approaches to the real earth very closely.

Homogeneous spherical elastic earth model is the first approximation of the real earth in the approach to study the earth tide, this paper gives a numerical .

The quasi-geoid computed by geopotential model is fitted with the quasi-geoid measured by GPS leveling.

We have achieved the quasigeoid in mainland China using geopotential model in conjunction with GPS/Leveling data.

The method by remove-restore technology for transforming GPS height was studied which took full advantage of virtues of the geopotential model and BP neural networks.