GGD239_1

Active layer physical processes at Broeggerhalvoya, western Spitsbergen, Version 1

Version 1 eng; usa
  • Abstract
    These data have been collected from an Arctic desert site (latitude 78o57'29N, longitude 12o27'42E), Broeggerhalvoya in western Spitsbergen, 10 km NW from Ny Alesund, 45 m above sea level, 2 km from the shore. This is a low relief tip of a bedrock peninsula covered with several meters of glacial drift and reworked raised beach ridges. The measurements are obtained in the site of well developed patterned ground, sorted polygons, where the influence of plants, including thermal insulation and transpiration, is negligible. The 1985-1986 period was average. Mean annual air temperature was -6.6 C, 0.4 C colder than the long-term (1975-1990) mean, but well within the mean variability. Mean winter air temperature is relatively warm (mean of coldest month, February, is -14.6 C). Annual precipitation was 17 % greater than the ong-term mean (372 mm); however, the number of rain-on-snow events was less (3) than average (5.5). Overall, the reference period is close to long-term averages. A program of automated soil temperature recordings was initiated in the summer of 1984, at a patterned ground field site Thermistors were placed approximately 0.1 m apart in an epoxy-filled PVC rod (18 mm outside diameter), buried in the center of a fine-grained domain of a sorted circle, down to 1.14 m below the ground surface. The data presented here covers 7/1/85-7/1/86, once a day (6 am), at two levels (0.0 m, 1.145 m below surface). The resolution of the thermistors is 0.004 C, and the accuracy is estimated to be 0.02 C near 0 C. Missing data accounts for less than 7 %. The gaps are filled with simple average of the beginning and end of the gap values. For a detailed description of the field site and data analysis see Putkonen (1997) and Hallet and Prestrud (1986). These data are presented on the CAPS Version 1.0 CD-ROM, June 1998.
  • Purpose
    Scientific Research

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    Processing Level

    Not Applicable

    Quality
    Collection Progress

    Complete

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    Science Keywords
    • EARTH SCIENCE
    • Cryosphere
    • Frozen Ground
    • Active Layer
    • EARTH SCIENCE
    • Land Surface
    • Frozen Ground
    • Active Layer
    • EARTH SCIENCE
    • Cryosphere
    • Frozen Ground
    • Permafrost
    • EARTH SCIENCE
    • Land Surface
    • Frozen Ground
    • Permafrost
    • EARTH SCIENCE
    • Atmosphere
    • Precipitation
    • Snow
    • EARTH SCIENCE
    • Atmosphere
    • Precipitation
    • Snow
    • EARTH SCIENCE
    • Cryosphere
    • Frozen Ground
    • Soil Temperature
    • EARTH SCIENCE
    • Land Surface
    • Frozen Ground
    • Soil Temperature
    • EARTH SCIENCE
    • Atmosphere
    • Atmospheric Radiation
    • Solar Radiation

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    Instruments

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    Coverage Type Zone Identifier Geometry Granule Representation
    HORIZONTAL CARTESIAN GEODETIC
Location Keywords
    • Ocean
    • Atlantic Ocean
    • North Atlantic Ocean
    • Svalbard And Jan Mayen
    • Broeggerhalvoya, near Ny Alesund, western Spitsbergen (Svalbard)

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  • National Snow and Ice Data Center
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    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

Data Contacts

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  • Jaakko
    Technical Contact
    Jaakko Putkonen

    Box 531310
    Seattle, WA 98195

    • 1 206 543 0689
    • 1 206 543 3836
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  • Bernard
    Technical Contact
    Bernard Hallet

    MS 351360
    Seattle, WA 98195

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    User Services
    National Snow and Ice Data Center

    Boulder, Colorado

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Collection Citations Fields:

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    Collection Citations
    • Active layer physical processes at Broeggerhalvoya, western Spitsbergen, Version 1
      1

      Published by: National Snow and Ice Data Center