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 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

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

blue arrow DATA CITATION

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

RESOURCES

GOCE Level 2 Products User Handbook
User Manual
Release 6 GOCE Gravity Field Models Validation Report
Report
GOCE+ Gravity Gradient Products User Manual
User Manual
GOCE+ Gravity Gradient Grids Algorithm Description
Technical Documentation
GOCE+ Product Validation Report
Report
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