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GOCE Global Gravity Field Models and Grids

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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 TypeGridded data: full Gravity Gradients, at 225 km and 255 km with and without topographic correction
GGG_225Computed from GOCE/GRACE gradients lower orbit phase February 2010 - October 2013
GGG_255Computed from GOCE/GRACE gradients nominal orbit phase February 2010 - October 2013
TGG_225Gravity gradient grids from topography at fixed height of 225/255 km above ellipsoid given in LNOF (Local North Oriented Frame)
TGG_225Gravity gradient grids from topography at fixed height of 225/255 km above ellipsoid given in LNOF (Local North Oriented Frame)
MAPS
File TypeMaps of Gravity Gradients with and without topographic corrections
Vij_225km_Patch_n.jpgMaps of grids from lower orbit phase with and without topographic correction from ETOPO1
Along-orbit
File TypeFull Gravity Gradients, along-orbit, in GRF and TRF reference frames. A detailed description is provided in the data set user manual
GGC_GRFCombined gradients from GRACE (long wavelengths) & GOCE (measurement band) in the GRF (Gradiometer Reference Frame)
GGC_TRFCombined 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

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

Sixth Generation

 

Release 6 gravity model validation report.


Time-Wise solution

First Generation

  • Product:
    • GO_CONS_EGM_GOC_2__20091101T000000_20100111T000000_0002.TGZ
  • Variance/Covariance matrix:
    • GO_CONS_EGM_GVC_2__20091101T000000_20100111T000000_0002.TGZ

Second Generation

  • Product:
    • GO_CONS_EGM_GOC_2__20091101T000000_20100705T235500_0002.TGZ
  • Variance/Covariance matrix:
    • GO_CONS_EGM_GVC_2__20091101T000000_20100705T235500_0001.TGZ

Third Generation

Fourth Generation

  • Product:
    • GO_CONS_EGM_GOC_2__20091101T000000_20120618T235959_0002.TGZ
  • Variance/Covariance matrix:
    • GO_CONS_EGM_GVC_2__20091101T000000_20120618T235959_0001.TGZ

Fifth Generation

Sixth Generation

 

Download release 6 gravity model validation report.

 

GOCE+ Geoexplore

Details

DATA SET SPECIFICATIONS

Digital Object Identifier (DOI):
Spatial coverage:
90 N, -90 S, -180 W, 180 E
Temporal coverage:
2009-09-01 - 2012-07-31
Date of launch:
2009-03-17
Operators:
ESA
Mission status:
Completed
Orbit height:
250 km
Orbit type:
Sun-synchronous

PROCESSING LEVEL

Level 2

APPLICABLE TERMS & CONDITIONS

Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions.

READ T&C

DATA CITATION

European Space Agency, 2010, GOCE Global Gravity Field Models and Grids Data Collection. Version 1.0.

RESOURCES

User Manual

GOCE Level 2 Products User Handbook

User Manual

Download
Report

Release 6 GOCE Gravity Field Models Validation Report

Report

Download
User Manual

GOCE+ Gravity Gradient Products User Manual

User Manual

Download
Technical Documentation

GOCE+ Gravity Gradient Grids Algorithm Description

Technical Documentation

Download
Report

GOCE+ Product Validation Report

Report

Download
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