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Envisat Interim Geophysical Data Record (IGDR)

Product description | Delivery services | Related products

Product description

PRODUCT TYPE

data

INPUT DATA

FDGDR

OUTPUT TYPE

along-track

SATELLITE

Envisat

AGENCIES

ESA

GRID TYPE
CONTENTS

This product is generated within a few days (3 to 5), using restituted auxiliary data (meteorological fields, pole location, DORIS ionospheric data) and a DORIS preliminary 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 (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
  • hydrology
  • ice
  • meteorology
  • ocean-atmosphere gas transfers
  • USER

    advanced

    GEOGRAPHICAL SCALE

    global

    GEOGRAPHICAL COVERAGE
    82.0°
    -180.0° 180.0°
    -82.0°
    SPATIAL RESOLUTION

    19 Km

    REFERENCE SURFACE
  • reference ellipsoid
  • TEMPORAL COVERAGE 2003-03-24 - 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://earth.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/
    by FTP, on request

    Related products and links

  • Envisat RA2-MWR Product Handbook
  • Enviview
  • Envisat L2 Product Read and Write Software Release
  • Last update: 2006-08-29

     

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    Tutorial produced by CLS under contract to ESA and CNES