ICGEM

ICGEM is archiving all global Earth gravity field models in citable form (DOIs). ICGEM provides visualization of the archived models incl. their differences and time variation. ICGEM is coordinated by the International Gravity Field Service (IGFS) of the International Association of Geodesy (IAG).

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What ICGEM can do for you

ICGEM is one of five services coordinated by the International Gravity Field Service (IGFS) of the International Association of Geodesy (IAG). The service of ICGEM comprises:

Collecting and archiving of all existing global Earth gravity field models
A web interface for getting access to global Earth gravity field models
Web based visualization tool of the gravity field models their differences and their time variation
Web based service for calculating different functionals of the gravity field models incl. download of the calculated data
Web site for tutorials on spherical harmonics and the theory of the calculation service incl. links to related literature
Providing a Digital Object Identifier (DOI) for the data set of the model (the coefficients)