A new global Earth's gravity field model from satellite orbit perturbations: GRIM5-S1
Richard Biancale
Groupe de Recherche de Géodésie Spatiale (GRGS), Toulouse, France
Search for more papers by this authorGeorges Balmino
Groupe de Recherche de Géodésie Spatiale (GRGS), Toulouse, France
Search for more papers by this authorJean-Michel Lemoine
Groupe de Recherche de Géodésie Spatiale (GRGS), Toulouse, France
Search for more papers by this authorJean-Charles Marty
Groupe de Recherche de Géodésie Spatiale (GRGS), Toulouse, France
Search for more papers by this authorBernard Moynot
Groupe de Recherche de Géodésie Spatiale (GRGS), Toulouse, France
Search for more papers by this authorFrancois Barlier
Groupe de Recherche de Géodésie Spatiale (GRGS), OCA/CERGA, Grasse, France
Search for more papers by this authorPierre Exertier
Groupe de Recherche de Géodésie Spatiale (GRGS), OCA/CERGA, Grasse, France
Search for more papers by this authorOlivier Laurain
Groupe de Recherche de Géodésie Spatiale (GRGS), OCA/CERGA, Grasse, France
Search for more papers by this authorPascal Gegout
Ecole et Observatoire du Globe de Strasbourg (EOPGS), Strasbourg, France
Search for more papers by this authorPeter Schwintzer
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorChristoph Reigber
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorAlbert Bode
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorRolf König
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorFranz-Heinrich Massmann
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorJean-Claude Raimondo
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorRoland Schmidt
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorSheng Yuan Zhu
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorRichard Biancale
Groupe de Recherche de Géodésie Spatiale (GRGS), Toulouse, France
Search for more papers by this authorGeorges Balmino
Groupe de Recherche de Géodésie Spatiale (GRGS), Toulouse, France
Search for more papers by this authorJean-Michel Lemoine
Groupe de Recherche de Géodésie Spatiale (GRGS), Toulouse, France
Search for more papers by this authorJean-Charles Marty
Groupe de Recherche de Géodésie Spatiale (GRGS), Toulouse, France
Search for more papers by this authorBernard Moynot
Groupe de Recherche de Géodésie Spatiale (GRGS), Toulouse, France
Search for more papers by this authorFrancois Barlier
Groupe de Recherche de Géodésie Spatiale (GRGS), OCA/CERGA, Grasse, France
Search for more papers by this authorPierre Exertier
Groupe de Recherche de Géodésie Spatiale (GRGS), OCA/CERGA, Grasse, France
Search for more papers by this authorOlivier Laurain
Groupe de Recherche de Géodésie Spatiale (GRGS), OCA/CERGA, Grasse, France
Search for more papers by this authorPascal Gegout
Ecole et Observatoire du Globe de Strasbourg (EOPGS), Strasbourg, France
Search for more papers by this authorPeter Schwintzer
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorChristoph Reigber
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorAlbert Bode
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorRolf König
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorFranz-Heinrich Massmann
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorJean-Claude Raimondo
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorRoland Schmidt
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorSheng Yuan Zhu
GeoForschungsZentrum Potsdam (GFZ), Division Kinematics&Dynamics of the Earth, Potsdam, Germany
Search for more papers by this authorAbstract
A new model of the Earth's gravity field, called GRIM5-S1, was prepared in a joint German-French effort. The solution is based on satellite orbit perturbation analysis and exploits tracking data from 21 satellites to solve simultaneously for the gravitational and ocean tide potential and tracking station positions. The satellite-only solution results in a homogeneous representation of the geoid with an approximation error of about 45 cm in terms of 5×5 degree block mean values, and performs globally better in satellite orbit restitution than any previous gravity field model. The GRIM5 normals, which were generated taking into account the latest computational standards, shall be the reference for use during the coming geopotential satellite mission CHAMP and should provide new standards in computing orbits of next altimetric missions like Jason and ENVISAT. The GRIM5-S1 normals also give the basis for the tracking/surface data combined solution GRIM5-C1.
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