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

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 th...

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Bibliographic Details
Main Author: Shamanova,I. I.
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1972
Subjects:
Soil Mechanics
Snow
Ice and Permafrost
(*PERMAFROST
EROSION)
SOILS
HYDROLOGY
CLIMATE
HEAT TRANSFER
SEDIMENTATION
THERMAL PROPERTIES
DRAINAGE
TERRAIN
ICE
THICKNESS
USSR
SOIL EROSION
FREEZING
TRANSLATIONS
Ice
permafrost
Thermokarst
Online Access:http://www.dtic.mil/docs/citations/AD0753034
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0753034
Description
Summary: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) Draft trans. of Akademiya Nauk SSSR. Izvestiya. Seriya Geograficheskaya, n2 p92-98 Mar/Apr 71.

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