Program demo for Precise Approach of Earth Gravity Field and Geoid PAGravf4.5Issuing time:2024-11-07 10:49Link:http://www.zcyphygeodesy.com/en/ ![]() Precise Approach of Earth Gravity Field and Geoid (PAGravf4.5) is a large Windows program package for geodetic scientific computation according to stationary gravity field theory, which includes five subsystems, namely, data analysis and preprocessing calculation of Earth gravity field, computation of various terrain effects on various field elements outside geoid, precision approach and all-element modelling on Earth gravity field, optimization, unification and application for regional height datum as well as editing, calculation and visualization tools for geodetic data files. Strictly according to the approach theory of gravity field, PAGravf4.5 efficiently deals with various terrain effects on various gravity field elements outside geoid. Scientifically constructs the gravity field approach algorithm system with the spatial domain integrals based on boundary value theory and spectral domain radial basis function approaches to realize the all-element modelling on gravity field in whole Earth space on or outside the geoid and the fine gravity prospecting modelling from various heterogeneous observations. And develops some ingenious algorithms based on physical geodesy to improve and unify the regional height datum, so as to consolidate and expand the applications of Earth gravity field. The basic principles, main methods and all the formulas in physical geodesy and Earth gravity field have been realized completely in PAGravf4.5 to imporve high education environment. Many long-term puzzles such as various terrain effects on various observations, all-element analytical modelling on gravity field, fine gravity prospecting modelling from heterogeneous observations, external accuracy index measurement and computational performance control have been effectively solved to strengthen the application capacity of Earth gravity field. PAGravf4.5 is suitable for senior undergraduates, graduate students, scientific researchers, and engineering technicians in geodesy and geophysics, geology and geoscience, geomatics and geographic information, seismic and geodynamics.
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