Minimize GOCE+ Gravity Gradients and GRIDS
GOCE+ GeoExplore


As output from the ESA-funded GOCE+ GeoExplore project, gradients are made available through the GOCE Virtual Online Archive as Grids, Maps and along-orbit data.

Data are freely available to Users in accordance with ESA Earth Observation Data Policy.

 

Available Data

GRIDS
File Type Gridded data: full Gravity Gradients, at 225 and 255 km with and without topographic correction
GGG_225 Computed from GOCE/GRACE gradients lower orbit phase February 2010 - October 2013
GGG_255 Computed from GOCE/GRACE gradients nominal orbit phase February 2010 - October 2013
TGG_225 Computed from GOCE/GRACE gradients lower orbit phase August 2012 - October 2013 with Topographic Corrections
TGG_225 Computed from GOCE/GRACE gradients nominal orbit phase February 2010 - July 2012 with Topographic Corrections
MAPS
File Type Maps of Gravity Gradients with and without topographic corrections.
Vij_225km_Patch_n.jpg Maps of grids from lower orbit phase with topographic correction from ETOPO1
Vij_225km_Patch_n.jpg Maps of the original grids from lower orbit phase without topographic correction
Clickable Map Clickable map is provided through this website.
Along-orbit
File Type Full Gravity Gradients, along-orbit, in GRF and TRF reference frames. Detailed description is provided in the DSUM, pages 7 - 16
GGC_GRF Combined gradients from GRACE (long wavelengths) & GOCE (measurement band) in the GRF (Gradiometer Reference Frame)
GGC_TRF Combined gradients from GRACE (long wavelengths) & GOCE (measurement band) rotated from GRF to TRF (Terrestrial Reference Frame: North, West, Up)

Data format is described in the Documentation, below. A very simple Matlab script to quick-start is available for download here.


Documentation

Document name Issue  
Data Set User Manual - Web Version 1.1 Download
Algorithm Theoretical Basis Document 2.2 Download
Product Validation Report 2.1 Download
Article in Nature Scientific Reports on gravity gradients grids   Download

Clickable Map

Click on the patches below to open the gravity gradients grids, with and without topographic correction. Maps are obtained from the lower orbit phase data.


The Project


GOCE+ GeoExplore is funded by ESA through the Support To Science Element–STSE.

The project has been carried out as a collaboration of the Deutsches Geodätisches Forschungsinstitut (DGFI), Munich, DE, the Christian-Albrechts-Universität zu Kiel, the Geological Survey of Norway (NGU), Trondheim, NO, TNO, The Netherlands, and the University of West Bohemia, Plzen, CZ.

Further information and documentation can be found on the GOCE+ GeoExplore Project website.

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