Satellite gravity gradient grids for geophysics

0461651 - ASÚ 2017 RIV GB eng J - Journal Article
Bouman, J. - Ebbing, J. - Fuchs, M. - Sebera, Josef - Lieb, V. - Szwillus, W. - Haagmans, R. - Novák, P.
Satellite gravity gradient grids for geophysics.
Scientific Reports. Roč. 6, February (2016), 21050/1-21050/11. ISSN 2045-2322. E-ISSN 2045-2322
Institutional support: RVO:67985815
Keywords : atlantic region * GOCE * model
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
Impact factor: 4.259, year: 2016

We compute gravity gradients in grids at 225 km and 255 km altitude above the reference ellipsoid corresponding to the GOCE nominal and lower orbit phases respectively, and find that the grids may contain additional high-frequency content compared with GOCE-based global models. We discuss the gradient sensitivity for crustal depth slices using a 3D lithospheric model of the North-East Atlantic region, which shows that the depth sensitivity differs from gradient to gradient. In addition, the relative signal power for the individual gradient component changes comparing the 225 km and 255 km grids, implying that using all components at different heights reduces parameter uncertainties in geophysical modelling.
Permanent Link: http://hdl.handle.net/11104/0261249