Accession Number:

AD0753034

Title:

Permafrost Erosion in Yamal (Proyavlenie Erozii v Mnogoletnemerzlykh Porodakh na Yanale),

Descriptive Note:

Corporate Author:

COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H

Personal Author(s):

Report Date:

1972-11-01

Pagination or Media Count:

12.0

Abstract:

The region under study is a distinctly terraced, gently rolling aggradation plain with erosion-thermokarst runoff belts and numerous thermokarst lakes. The climate in the region is severe the average many years air temperature is -9.5C. The thickness of the frozen layers in a large part of the territory exceeds 300 to 400 m their most typical temperature at the base of the layer of annual heat exchanges is -6 to -7C. The thickness of the seasonally thawing soil layer under the influence of a grouping of natural factors composition of sediments depth of mossy-lichen layer and peaty horizon, position of sector in relief, etc. will fluctuate from 0.25 to 0.3 m in the peat bogs to 1.3 m in the watershed sectors with mottled microrelief. Author

Subject Categories:

  • Soil Mechanics
  • Snow, Ice and Permafrost

Distribution Statement:

APPROVED FOR PUBLIC RELEASE