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GUT data

Dataset support

The GOCE User Toolbox (GUT) supports the following datasets:

  • L2 GOCE Dataset (EGM_GOC_2 Product Type only)
  • netCDF (in Climate & Forecast 1.1 Convention)
  • ASCII GRAVSOFT (Grid Format)
  • ASCII ICGEM (Spherical Harmonics Format)

L2 GOCE Data Products ingestible in GUT are only of the EGM_GOC_2 type and the pair HDR/DBL is needed.

The fields that GUT is able to read/handle from this data product type are:

  • EGM_GCF_2: Spherical harmonic series
  • EGM_GEO_2: Grid with geoid heights
  • EGM_GAN_2: Grid with gravity anomalies
  • EGM_GVE_2: Grid with east-west vertical deflections
  • EGM_GVN_2: Grid with north-south vertical deflections

In order to ingest netcdf data in GUT, they must fulfill with the Climate & Forecast Metadata Convention (Climate and Forecast v1.2 or higher).

In addition, GUT uses auxiliary data such as MSS, MDT, and DEM in NetCDF format (Climate and Forecast standard).

The DEM, used internally in GUT, comes from "De Montfort University" ACE2 dataset.

Data output formats

The current data formats that GUT can provide in output are:

  • netCDF (Climate and Forecast Metadata Convention Adopted)
  • ASCII GRAVSOFT (Only gridded format)
  • KML wrapper file (Only gridded format)
  • TIFF image file (Only gridded format)

Sample data

Download sample data from GUT to see examples of what the tool outputs.

Absolute Dynamic Topography

  • Absolute Dynamic Height in the Aghulas Current Area from a GUT apriori mean dynamic topography (MDT) and a GUT apriori SLA file: Download adt_aghulas.nc

Geoid Height

Geostrophic Velocity

Gravity Anomaly

Remove&Restore Technique A MDT

Remove&Restore Technique B MDT

Spatial Filtering

Spatial Satellite-Only MDT

Vertical Deflection North

User scripts

The GUT Team designed and implemented this script on a best-effort initiative, and it was not included in the official GUT software package, so support is not guaranteed.

Download matlab_import - These are Matlab Routines for the conversion of data files in generic standard formats (Gridded Binary, ASCII, ICGEM, etc.) to GUT-compliant netCDF format (please refer to the readme file for more information). You are free to edit the script to customise it for your needs.

If you have any scripts that you would like to submit, please email the GUT Support Team

User workflows

Samples of workflows not included in the official GUT priori list of work-flows have been designed and implemented by the GUT Team on a best-effort initiative, or for GUT validation purposes. They are freely available for use.

This section also offers any workflows that GUT users would like to donate and share with the GUT community. If you would like to submit a workflow, email the GUT Support Team.

Please note that because these workflows are not part of the official release of GUT, support is not guaranteed.

Each file contains a description and instructions of use: