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Data Set ID:

Borehole permafrost data, Kumtor and Taragai Valleys, Tienshan, Kazakhstan, Version 1

This dataset includes observations of the permafrost temperatures in the Inner Tien Shan were started in 1986 by Kazakhstan Alpine Permafrost Laboratory. Observations are carried out on more than 40 boreholes, at altitudes between 3300-4200 m. The depths of the boreholes vary from 30 to 600 m. The boreholes are located in both loose (moraines) sediments and bedrock. Several boreholes are situated in the territory of the 'Kumtor' goldmine. The geocryological conditions of goldmine 'Kumtor' and nearby territory have been discussed in scientific reports 1988, 1989 and articles (see references). Two boreholes were drilled in body of glacier 'Davydov' and located in the central and lateral parts of the glacier (depth - 30 m). A third borehole passed through the glacier, moraine and bedrock to a depth of 600 m. In the Kumtor and Taragai valleys, permafrost temperature in 14 boreholes from 25 to 50 m depth, between 3300-3750 m ASL were observed. The distance between outermost boreholes is about 40 km.

Temperature measurements in 9 geological prospecting adits [tunnels] (lengthwise 1500-1900 m) located in the four neighboring valleys (altitudes from 3920 to 4010 m) were carried out. At the same sites, but in natural conditions, the thermal conductivity of the bedrock was determined by the cylindrical sounding method. Grain size, soil moisture content, cryogenic structure and depth of seasonal thaw were also obtained from 15 pits located in differing altitudinal levels and exposures. At two further sites, ground temperatures measurements at depths of 0, 2, 5, 10, 15, 20 and 40 cm were taken every hour during daylight hours every 5 days over a two year period. Air temperature, wind velocity and duration of daylight were measured at the same time as the ground temperature measurements. These data are presented on the CAPS Version 1.0 CD-ROM, June 1998.

Geographic Coverage

  • Frozen Ground > Active Layer
  • Atmospheric Temperature > Air Temperature
  • Frozen Ground > Cryosols
  • Frozen Ground > Permafrost
  • Soils > Soil Moisture/Water Content
  • Soils > Soil Structure
  • Soils > Soil Temperature
Spatial Coverage:
  • N: 41.933, S: 41.65, E: 78.233, W: 77.817

Spatial Resolution: Not Specified
Temporal Coverage:
  • 14 December 1986 to 17 January 1992
  • 29 November 1986 to 18 January 1992
  • 25 March 1980 to 29 March 1995
  • 13 August 1974 to 12 August 1992
  • 23 February 1974 to 14 March 1995
  • 23 February 1974 to 23 February 1995
Temporal Resolution: Not specified
Data Format(s):
  • ASCII Text
Platform(s) Not specified
Sensor(s): Not specified
Version: V1
Data Contributor(s): Aldar P. Gorbunov, Evgeniy D. Ermolin, Sergei Marchenko, Eduard V. Seversky, Alexandr Nemov, Mihail Popov, Sergei Titkov
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.

Gorbunov, A., E. Ermolin, E. Seversky, A. Nemov, M. Popov, S. Titkov, and S. Marchenko 1998. Borehole permafrost data, Kumtor and Taragai Valleys, Tienshan, Kazakhstan, Version 1. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. [Date Accessed].
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