Integrated nearly 20 years of geodetic research results, the large scientific computing window platform for geophysical geodesy have been independently developed by Chinese Academy of Surveying and Mapping, which is composed of PAGravf4.5 (Precise approach of Earth gravity field and geoid) and ETideLoad4.5 (Earth tide, load effect and deformation monitoring computation).

Based on the purpose of public welfare, the scientific computing platform is committed to improving the scientific research and higher education environment lacking in such computing resources in the geoscience field, showing the attractive potential of geodesy, reconstructing the heterogeneous geodetic system and collaborative geodetic frame, improving the geodetic ability in solving practical problem by multi-disciplinary collaboration, and supporting the deep fusion of heterogeneous Earth observations and collaborative monitoring of multi-geotechnologies.

Precise Approach of Earth Gravity Field and Geoid (PAGravf4.5) is a large Windows program package for scientific computation rigorously based on stationary gravity field theory. Strictly according to physical geodesy, PAGravf4.5 constructs the unified analytical algorithm system of various terrain effects on various gravity field elements on or outside the geoid to improve the gravity prospecting modelling and gravity field data processing. 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 Earh space on or outside the geoid and fine gravity prospecting modelling from various heterogeneous observations. And develops some ingenious physical geodetic algorithms to improve and unify the regional height datum, so as to consolidate and expand the applications of Earth gravity field.

Earth Tide, Load Effect and Deformation Monitoring Computation (ETideLoad4.5) is a large scientific computing package for geophysical geodetic monitoring, which adopts the scientific uniform numerical standards and analytic compatible geophysical algorithms accurately to compute various tidal and non-tidal effects on various geodetic variations outside the solid Earth, approaches the load deformation field and temporal gravity field from heterogeneous geodetic data, and then quantitatively monitors the land water, geological environment and ground stability variations, in order to support the deep fusion of heterogeneous geodetic data and collaborative monitoring of multi-geodetic technologies.

The scientific computing platform is suitable senior undergraduates, graduate students, scientific researchers, and engineering technicians in geodesy and geophysics, geology and geoscience, geomatics and geographic information, seismic and geodynamics, aerospace and satellite dynamics.