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Working Group On Calibration and Validation
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Decorative image showing Pacific Ocean temperatures as a shaded color-contour map Decorative image showing the Western Hemisphere land and sea surface temperatures as a shaded color-contour map
TM
Chair

 Jan-Peter Muller
  Mullard Space Science Laboratory
  Dept. of Space and Climate Physics
  University College London
  Holmbury St. Mary
  Dorking, Surrey
  RH5 6NT, UK
  tel:
    +44-1483-204151
  fax:
    +44-1483-278312
  email:
    jpm@mssl.ucl.ac.uk


 Vice Chair
 Veljko Jovanovic
  NASA/JPL
  email:
    Veljko.Jovanovic
    @jpl.nasa.gov


TM photo
  False Colour hill-shaded view of first DEM product from the NASA Shuttle Rada Topography Mission (SRTM) Courtesy: JPL & UCL
 Mission
To ensure that characteristics of digital terrain models produced from Earth Observation sensors at global and regional scale are well understood and that products are validated and used for appropriate applications

 Terms of Reference
The objectives of the Terrain Mapping subgroup, beyond those of the WGCV, are to:
  • Develop specifications for the generation of "standardised terrain surface products with known accuracy" from similar sensing systems in the context of data continuity
  • Specify evaluation methods and statistics which give transparent information about the quality and heritage of terrain models
  • Update the current dossier of test sites and identify new sites, particularly to satisfy the cal/val requirements of future missions and generally improve access to validation data sets
  • Prepare recommendations for the establishment of a global ground control point network
  • Consider how orbit validation could be developed
  • Keep an up to date record of the current status of sensors which produce data for terrain mapping and of the DEMs available
  • Produce a DEM requirements document with a science rationale, taking into account the output from SRTM
  Action Plan
The objectives will be achieved through the following activities:
  • Liase with CEOS Members and Associates activities, especially the IGOS in order to determine the DEM requirements of the user community to ensure that cal/val procedures are in place to satisfy that need
  • Collaborate with other groups to ensure that common activities are co-ordinated and enhanced by collaboration
  • Hold one meeting a year to review progress, plan future action and discuss results