Evaluation of gravity field model EIGEN-6C4 by means of various functions of gravity potential, and by GNSS/levelling

0455145 - ASÚ 2016 RIV CZ eng J - Journal Article
Kostelecký, J. - Klokočník, Jaroslav - Bucha, B. - Bezděk, Aleš - Förste, Ch.
Evaluation of gravity field model EIGEN-6C4 by means of various functions of gravity potential, and by GNSS/levelling.
Geoinformatics FCE CTU. Roč. 14, č. 1 (2015), s. 7-27. E-ISSN 1802-2669
Institutional support: RVO:67985815
Keywords : gravity field models * EGM 2008 * Eigen-6C4
Subject RIV: DE - Earth Magnetism, Geodesy, Geography

The combined gravity field model EIGEN-6C4 (Förste et al., 2014) is the latest combined global gravity field model of GFZ Potsdam and GRGS Toulouse. EIGEN-6C4 has been generated including the satellite gravity gradiometry data of the entire GOCE mission (November 2009 till October 2013) and is of maximum spherical degree and order 2190. In this study EIGEN-6C4 has been compared with EGM2008 to its maximum degree and order via gravity disturbances and Tzz part of the Marussi tensor of the second derivatives of the disturbing potential. The emphasis is put on such areas where GOCE data (complete set of gradiometry measurements after reductions) in EIGEN-6C4 obviously contributes to an improvement of the gravity field description.
Permanent Link: http://hdl.handle.net/11104/0255794