GOCE Global Gravity Field Models and Grids

Name: GOCE Global Gravity Field Models and Grids
Creator: European Space Agency
License: https://earth.esa.int/eogateway/documents/20142/1564626/Terms-and-Conditions-for-the-use-of-ESA-Data.pdf

Data
GOCE Global Gravity Field Mode...

GOCE Global Gravity Field Models and Grids

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Collection Description

This collection contains gravity gradient and gravity anomalies grids at ground level and at satellite height. In addition it contains the GOCE gravity field models (EGM_GOC_2, EGM_GCF_2) and their covariance matrices (EGM_GVC_2):

GOCE Gravity solution GRIDS

Gridded Gravity gradients and anomalies at ground level:

GO_CONS_GRC_SPW_2__20091101T000000_20111231T235959_0001.TGZ
GO_CONS_GRC_SPW_2__20091101T055147_20120731T222822_0001.TGZ
GO_CONS_GRC_SPW_2__20091101T055226_20131020T033415_0002.TGZ
GO_CONS_GRC_SPW_2__20091009T000000_20131021T000000_0201.TGZ.

Latest baseline is: GO_CONS_GRC_SPW_2__20091009T000000_20131021T000000_0201.TGZ.

Gridded Gravity gradients and anomalies at satellite height:

GO_CONS_GRD_SPW_2__20091101T055147_20100630T180254_0001.TGZ
GO_CONS_GRD_SPW_2__20091101T055147_20120731T222822_0001.TGZ
GO_CONS_GRD_SPW_2__20091101T055226_20131020T033415_0002.TGZ
GO_CONS_GRD_SPW_2__20091009T000000_20131021T000000_0201.TGZ.

Latest baseline is: GO_CONS_GRD_SPW_2__20091009T000000_20131021T000000_0201.TGZ.

As output from the ESA-funded GOCE+ GeoExplore project, GOCE gravity gradients were combined with heterogeneous other satellite gravity information to derive a combined set of gravity gradients complementing (near)-surface data sets spanning all together scales from global down to 5 km. The data is useful for various geophysical applications and demonstrate their utility to complement additional data sources (e.g., magnetic, seismic) to enhance geophysical modelling and exploration.

The GOCE+ GeoExplore project is funded by ESA through the Support To Science Element (STSE) and was undertaken as a collaboration of the Deutsches Geodätisches Forschungsinstitut (DGFI), Munich, DE, the Christian-Albrechts-Universität zu Kiel, the Geological Survey of Norway (NGU), Trondheim, Norway, TNO, the Netherlands and the University of West Bohemia, Plzen, CZ.

Read more about gravity gradients and how GOCE delivered them in this Nature article: Satellite gravity gradient grids for geophysics.

View images of the GOCE original gravity gradients and gradients with topographic reduction grids.

*Available data*
GRIDS
File Type	Gridded data: full Gravity Gradients, at 225 km 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	Gravity gradient grids from topography at fixed height of 225/255 km above ellipsoid given in LNOF (Local North Oriented Frame)
TGG_225	Gravity gradient grids from topography at fixed height of 225/255 km above ellipsoid given in LNOF (Local North Oriented Frame)
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 and without topographic correction from ETOPO1
Along-orbit
File Type	Full Gravity Gradients, along-orbit, in GRF and TRF reference frames. A detailed description is provided in the data set user manual
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)

Direct solution

First Generation

Product:
- GO_CONS_EGM_GOC_2__20091101T000000_20100110T235959_0002.TGZ
Variance/Covariance matrix:
- GO_CONS_EGM_GVC_2__20091101T000000_20100110T235959_0002.TGZ

Second Generation

Product:
- GO_CONS_EGM_GOC_2__20091101T000000_20100630T235959_0002.TGZ
Variance/Covariance matrix:
- GO_CONS_EGM_GVC_2__20091101T000000_20100630T235959_0001.TGZ

Third Generation

Product:
- GO_CONS_EGM_GOC_2__20091101T000000_20110419T235959_0001.TGZ
Variance/Covariance matrix:
- GO_CONS_EGM_GVC_2__20091101T000000_20110419T235959_0001.TGZ
Coefficients (ICGEM format):
- GO_CONS_EGM_GCF_2__20091101T000000_20110419T235959_0001.IDF

Fourth Generation

Product:
- GO_CONS_EGM_GOC_2__20091101T000000_20120801T060000_0001.TGZ
Variance/Covariance matrix:
- GO_CONS_EGM_GVC_2__20091101T000000_20120801T060000_0002.TGZ

Fifth Generation

Product:
- GO_CONS_EGM_GOC_2__20091101T000000_20131020T235959_0002.TG
Variance/Covariance matrix:
- GO_CONS_EGM_GVC_2__20091101T000000_20131020T235959_0001.TGZ
Coefficients (ICGEM format):
- GO_CONS_EGM_GOC_2__20091101T000000_20131020T235959_0001.IDF

Sixth Generation

Product:
- GO_CONS_EGM_GOC_2__20091009T000000_20131020T235959_0201.TGZ
Variance/Covariance matrix:
- GO_CONS_EGM_GVC_2__20091009T000000_20131020T235959_0201.TGZ
Coefficients (ICGEM format):
- GO_CONS_EGM_GOC_2__20091009T000000_20131020T235959_0201.IDF

Release 6 gravity model validation report.

Time-Wise solution