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Data Set ID:

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

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.

Geographic Coverage

Spatial Coverage:
  • N: 78.958, S: 78.958, E: 12.462, W: 12.462

Spatial Resolution: Not Specified
Temporal Coverage:
  • 1 July 1985 to 30 June 1986
Temporal Resolution: Not specified
  • Frozen Ground > Active Layer
  • Frozen Ground > Permafrost
  • Precipitation > Snow
  • Frozen Ground > Soil Temperature
  • Atmospheric Radiation > Solar Radiation
Platform(s) Not specified
Sensor(s): Not specified
Data Format(s):
  • ASCII Text
Version: V1
Data Contributor(s): Jaakko K. Putkonen, Bernard Hallet

Data Citation

As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

1998. Active layer physical processes at Broeggerhalvoya, western Spitsbergen, Version 1. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. [Date Accessed].
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