NSIDC-0052_1

Digital SAR Mosaic and Elevation Map of the Greenland Ice Sheet, Version 1

Version 1 eng; usa
  • Abstract
    The Digital SAR Mosaic and Elevation Map of the Greenland Ice Sheet CD-ROM combines the most detailed synthetic aperture radar (SAR) image mosaic available with the best current digital elevation model. The mosaic image shows both the location of the ice edge and the distribution of melt-related 'scatterers' on the surface. These scatterers include ice lenses and complex layered structure in the percolation zone and bare ice of the ablation zone. Other melt-related features that can be seen include lake and surface meltwater stream channels at lower elevations, as well as ice-marginal lakes. This characterization of the ice sheet provides a reference against which future change can be measured. Changing conditions resulting from climatic variation should show up as changes in the ice margin and shifts in the hydrologic zones. It is hoped that the standard reference provided by this data set can facilitate activities aimed at change detection and promote other work aimed at understanding the processes operating on the ice sheet. The image data are derived from SAR image swaths acquired by the ERS-1 satellite during August of 1992. The mosaic was assembled at the Jet Propulsion Laboratory (JPL) and Goddard Space Flight Center (GSFC). Its component images are a copyrighted product of the European Space Agency. The mosaic, a value-added derived product, is available to individuals and non-profit organizations for research oriented purposes only. The Danish geodetic and cadastral agency Kort-og Matrikelstyrelsen (KMS) compiled the elevation data provided with the product from a number of sources, including field surveys, aerial photographs, and the ERS-1 radar altimeter. The elevation data are also provided only to individuals and non-profit organizations for research oriented purposes. Included with the data is NSIDC's limb (large image map browser) software, which was developed in-house and allows UNIX users to easily select and view portions of the mosaic image with elevation contours derived from the elevation data overlain. Limb is provided as 'freeware' for general use. NSIDC distributes the Digital SAR Mosaic and Elevation Map of the Greenland Ice Sheet on CD-ROM at no charge.
  • Purpose
    Scientific Research

Data Identification Fields:

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    Processing Level

    Level 3

    Quality
    Collection Progress

    Complete

Related URLs
    Science Keywords
    • EARTH SCIENCE
    • Cryosphere
    • Glaciers/Ice Sheets
    • Glacier Elevation/Ice Sheet Elevation
    • EARTH SCIENCE
    • Terrestrial Hydrosphere
    • Glaciers/Ice Sheets
    • Glacier Elevation/Ice Sheet Elevation
    • EARTH SCIENCE
    • Cryosphere
    • Glaciers/Ice Sheets
    • Glacier Elevation/Ice Sheet Elevation
    • EARTH SCIENCE
    • Terrestrial Hydrosphere
    • Glaciers/Ice Sheets
    • Glacier Elevation/Ice Sheet Elevation
    • EARTH SCIENCE
    • Cryosphere
    • Glaciers/Ice Sheets
    • Glacier Topography/Ice Sheet Topography
    • EARTH SCIENCE
    • Terrestrial Hydrosphere
    • Glaciers/Ice Sheets
    • Glacier Topography/Ice Sheet Topography
    • EARTH SCIENCE
    • Cryosphere
    • Glaciers/Ice Sheets
    • Glacier Topography/Ice Sheet Topography
    • EARTH SCIENCE
    • Terrestrial Hydrosphere
    • Glaciers/Ice Sheets
    • Glacier Topography/Ice Sheet Topography
    • EARTH SCIENCE
    • Cryosphere
    • Sea Ice
    • Ice Edges
    • EARTH SCIENCE
    • Oceans
    • Sea Ice
    • Ice Edges
    • EARTH SCIENCE
    • Cryosphere
    • Sea Ice
    • Ice Edges
    • EARTH SCIENCE
    • Oceans
    • Sea Ice
    • Ice Edges
    • EARTH SCIENCE
    • Cryosphere
    • Glaciers/Ice Sheets
    • Ice Sheets
    • EARTH SCIENCE
    • Terrestrial Hydrosphere
    • Glaciers/Ice Sheets
    • Ice Sheets
    • EARTH SCIENCE
    • Cryosphere
    • Glaciers/Ice Sheets
    • Ice Sheets
    • EARTH SCIENCE
    • Terrestrial Hydrosphere
    • Glaciers/Ice Sheets
    • Ice Sheets
    • EARTH SCIENCE
    • Spectral/Engineering
    • Radar
    • Radar Backscatter
    • EARTH SCIENCE
    • Spectral/Engineering
    • Radar
    • Radar Backscatter
    • EARTH SCIENCE
    • Spectral/Engineering
    • Radar
    • Radar Cross-section
    • EARTH SCIENCE
    • Spectral/Engineering
    • Radar
    • Radar Cross-section
    • EARTH SCIENCE
    • Spectral/Engineering
    • Radar
    • Radar Imagery
    • EARTH SCIENCE
    • Spectral/Engineering
    • Radar
    • Radar Imagery
    • EARTH SCIENCE
    • Spectral/Engineering
    • Radar
    • Radar Reflectivity
    • EARTH SCIENCE
    • Spectral/Engineering
    • Radar
    • Radar Reflectivity
    • EARTH SCIENCE
    • Spectral/Engineering
    • Radar
    • Return Power
    • EARTH SCIENCE
    • Spectral/Engineering
    • Radar
    • Return Power
Other Descriptive Keywords
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ISO Topic Categories
  • ELEVATION
  • IMAGERY/BASE MAPS/EARTH COVER
  • INLAND WATERS
  • GEOSCIENTIFIC INFORMATION

Acquisition Information Fields:

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Platforms
  • Satellite
    ERS-1
    Instruments
    • SAR
  • Satellite
    GEOSAT
    Instruments
    • RADAR ALTIMETERS

Temporal Information Fields:

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Spatial Information Fields:

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    Coverage Type Zone Identifier Geometry Granule Representation
    HORIZONTAL CARTESIAN GEODETIC
Location Keywords
    • Continent
    • North America
    • Greenland

Data Centers

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  • National Snow and Ice Data Center
    ARCHIVER

    National Snow and Ice Data Center
    CIRES, 449 UCB
    University of Colorado
    Boulder, CO 80309-0449

    • 1 303 492 6199
    • 1 303 492 2468
    • Email
  • National Snow and Ice Data Center
    DISTRIBUTOR

    National Snow and Ice Data Center
    CIRES, 449 UCB
    University of Colorado
    Boulder, CO 80309-0449

    • 1 303 492 6199
    • 1 303 492 2468
    • Email
  • NSIDC
    PROCESSOR

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  • NSIDC
    ORIGINATOR

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Data Contacts

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  • Mark
    Technical Contact
    Mark Fahnestock

    University of New Hampshire
    39 College Road
    Durham, NH 03824-3525

  • Simon
    Technical Contact
    Simon Ekholm

    Kort-og Matrikelstyrelsen
    (KMS, National Survey and Cadastre)
    Copenhagen,

    This contact does not have any contact mechanisms listed.

  • Kenneth
    Technical Contact
    Kenneth Knowles

    National Snow and Ice Data Center
    CIRES, 449 UCB
    University of Colorado
    Boulder, CO 80309-0449

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  • Ron
    Technical Contact
    Ron Kwok

    Jet Propulsion Laboratory (JPL)
    California Institute of Technology
    Pasadena, CA

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  • Ted
    Technical Contact
    Ted Scambos

    National Snow and Ice Data Center
    CIRES, 449 UCB
    Boulder, CO 80309-0449

  • Mike
    Technical Contact
    Mike Meshek

    National Snow and Ice Data Center
    CIRES, 449 UCB
    University of Colorado
    Boulder, CO 80309-0449

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  • Fahnestock,
    Technical Contact
    Fahnestock, Scambos

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  • National Snow and Ice Data Center
    User Services
    National Snow and Ice Data Center

    Boulder, Colorado

    This contact does not have any contact mechanisms listed.

  • NSIDC
    Data Center Contact
    NSIDC Services

    National Snow and Ice Data Center

    CIRES, 449 UCB
    University of Colorado
    Boulder, CO 80309-0449

    • 1 303 492 6199
    • 1 303 492 2468
    • Email
  • NSIDC
    Data Center Contact
    NSIDC Services

    National Snow and Ice Data Center

    CIRES, 449 UCB
    University of Colorado
    Boulder, CO 80309-0449

    • 1 303 492 6199
    • 1 303 492 2468
    • Email

Collection Citations Fields:

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    Collection Citations
    • Digital SAR Mosaic and Elevation Map of the Greenland Ice Sheet, Version 1
      1

      Published by: National Snow and Ice Data Center