Product description

PRODUCT TYPE data INPUT DATA OUTPUT TYPE along-track
SATELLITE Envisat AGENCIES ESA GRID TYPE
CONTENTS SGDR products provide averaged waveforms (at 18 Hz), individual waveforms (at 1800 Hz) and Geophysical Data Records using the best restituted auxiliary data (meteorological fields, solar activity indexes, pole location, platform data, DORIS ionospheric data) and a DORIS precise orbit. The product is re-tracked (waveform data are fully processed in the ground processor to extract the geophysical parameters) and mainly contains datation, geo-location, output from re-trackers (ie range, wind speed, significant wave height, etc.), at 1 Hz plus some 18 Hz parameters (range, orbital altitude). In order to retrieve the geophysical parameters over all types of surface (ocean, ice, sea-ice, etc.), four specialised re-trackers are continuously run in parallel (over all surfaces): Ocean re-tracker, Ice-1 re-tracker, Ice-2 re-tracker and Sea-Ice re-tracker.
APPLICATIONS
  • re-tracking
  • hydrology
  • land
  • ice
  • meteorology
  • ocean-atmosphere gas transfers
USER expert
GEOGRAPHICAL SCALE global GEOGRAPHICAL COVERAGE
82.0°
-180.0° 3.1 180.0°
-82.0°
SPATIAL RESOLUTION 9 Km REFERENCE SURFACE
TEMPORAL COVERAGE 2003-06-02 – onGoing QUALITY CONTROL
PARAMETERS
  • sea_surface_height_above_reference_ellipsoid, m, CF
UPDATED daily BY name : ESA
email adress :EOHelp@esa.int
web site :http://envisat.esa.int/
MENTION
COPYRIGHT 2002-2006 Esa

Delivery

Resource Volume Format Distributed by Licence/conditions
1.3 MB Binary name : ESA
email adress : EOHelp@esa.int
web site : http://earth.esa.int/
DVD, on request

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Last update: 2006-08-29