中文摘要：

［1］Zhu Z W. Theory of unified representation of gravitational field. Science in China (Series B) , 1988(4) :481～491(in Chinese) ［2］Zhu Z W, Cao H S. Internal boundary value problem of gravimetry and its application. Science in China (Series B), 1990(1): 1357～1368(in Chinese) ［3］Li F. A research on density of null external potential.Chinese Journal of Geophysics, 1997 (1): 103～114(in Chinese) ［4］Ning K, Li F. Research on the disturbing potential source of the earth and its geotectonic significance. Chinese Journal of Geophysics, 1997(1): 193～201(in Chinese) ［5］Li F, Ning K. On the criterion of gravimetric inverse problems. Chinese Journal of Geophysics, 1998(1): 90～98(in Chinese) ［6］Zhu J L. Boundary elements analysis on elliptical-type boundary vulue problem. Beijing: Science Publishing House, 1991 ［7］Zhu Z W, Yu J H. Pseudo-solution on geodetic overdetermined boundary value problems. Science in China (Series B ), 1992 (6): 697～708 (in Chinese) ［8］Zhu Z W. Unified representation of gravitation field in consideration of effect of ellipsoid flattening. Chinese Sience Bulletin, 1997(16): 1 631～1 635(in Chinese) ［9］Huang J S, Zhu Z W. Frequency response point masses model of exterior disturbing gravity field. Chinese Journal of Geophysics, 1995 (2): 182～188( in Chinese) ［10］Zhu Z W,Huang J S. The gravimetric non-linear internal boundary value problem, In: Annual of Chinese Geophysical Society. Beijing: Publishing House of Oil Industry, 1995(in Chinese)

英文摘要：

For a special use a new modelling method of evaluating external disturbing potential is presented in this paper. Being different from classical methods in physical geodesy this method is grounded upon the theory of unified representation of gravitational field. The models created in this way are particularly satisfactory for a high-speed computation of gravitational field in low altitude because they take account of topographic effects and have their kernel functions with simple structure and weak singularity.