GGD651_1

Arctic EASE-Grid Freeze and Thaw Depths, 1901 - 2002, Version 1

Version 1 eng; usa
  • Abstract
    This data set contains mean, median, minimum and maximum freeze and thaw depths for each year from 1901 to 2002 on the 25 km resolution Equal-Area Scalable Earth Grid (EASE-Grid) for areas north of 50 deg. Freeze and thaw depths are estimated using a variant of the Stefan solution using an edaphic factor and freezing or thawing indices as inputs. The edaphic factor is estimated based on different land surface types; the freezing and thawing indices are from Northern Hemisphere EASE-Grid annual freezing and thawing indices, 1901 - 2002 (Zhang, et al. 2005). Two ASCII files are available for each year for freeze depth and thaw depth, respectively. Each file is approximately 25.6 MB in size. In addition, there is one 10.5 MB ASCII file defining the latitude and longitude coordinates for each grid point. The data set is available via FTP as three compressed files.
  • 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
    • Frozen Ground
    • Active Layer
    • EARTH SCIENCE
    • Land Surface
    • Frozen Ground
    • Active Layer
    • Freeze/Thaw Depth
Other Descriptive Keywords
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ISO Topic Categories
  • GEOSCIENTIFIC INFORMATION

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Platforms
  • Not provided
    Instruments

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
    • Geographic Region
    • Arctic

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
  • FGDC
    PROCESSOR

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  • FGDC
    ORIGINATOR

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Data Contacts

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  • Tingjun
    Technical Contact
    Tingjun Zhang

    UCB449
    Boulder, Colorado 80309-0449

    • 1 303 492 6199
    • 1 303 492 2359
    • Email
  • R.
    Technical Contact
    R. Barry

    449 UCB
    Boulder, CO 80309-0449

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  • Zhang,
    Technical Contact
    Zhang, Barry

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

    Boulder, Colorado

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  • 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
    • Arctic EASE-Grid Freeze and Thaw Depths, 1901 - 2002, Version 1
      1

      Published by: National Snow and Ice Data Center