Minimize Dataset Details
Earth Topics (Applications)
  • Land
  • Soil

    Vegetation

  • Snow and Ice
  • Sea Ice

    Snow and Ice

  • Natural Disasters
  • Oil Slick

  • Ocean and Coast
  • Ocean Currents and Topography

    Ocean Waves

    Coastal Geomorphology

  • Water
  • Water Management

    Instrument type
    Instrument
    Mission
    Operators:
    ESA
    Date of Launch:
    1 March 2002
    Mission Status:
    Out of service since May 2012 
    Orbit Height:
    800 km 
    Orbit type:
    Sun-synchronous 
    Swath Width:
    5 - 1150 km
    ASAR Alternating Polarisation Medium Resolution Image
    (ENVISAT.ASA.APM_1P)
    ENVISAT
    (1039) recent views
    Last update: 2 August 2016

    This data product has been generated from Level 0 data collected when the instrument was in Alternating Polarisation Mode. The product has lower geometric resolution but higher radiometric resolution than ASA_APP and contains one or two co-registered images corresponding to one of the three polarisation combination submodes (HH and VV, HH and HV, VV and VH).

    This product has been processed using the SPECAN algorithm and contains radiometric resolution good enough for ice applications and covers a continuous area along the imaging swath.

    Spatial Resolution: 150 m ground range x 150 m azimuth

    Data Set Specifications
    Spatial coverage: 90 N, 90 S, 180 W, 180 E
    Temporal coverage: 2002-11-15 - 2012-04-08
    Processing level
    Level 1b
    How to access this data

    Data is available online upon user registration

    Terms & Conditions applicable
    Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions
    Auxiliary data
    ASAR auxiliary data
    Available via SPPA
    Resources

    PDF

    ASAR Products Specification - Revision C

    HTML

    SPECAN Algorithm

    HTML

    ASA_APM_1P File Structure

    PDF

    Envisat ASAR Science and Applications

    HTML

    ASAR Level 1 Algorithms

    HTML

    ASAR Product Handbook

    PDF

    More ASAR Documents