AN ANALYSIS OF THE MORPHOLOGICAL STRUCTURE DEVELOPMENT OF THE THERMOKARST-LAKE PLAINS ON THE BASE OF THE MATHEMATICAL MODEL
https://doi.org/10.15356/0435-4281-2015-3-3-13
Abstract
We analyzed different hypotheses of the thermokarst-lake plains development using mathematical modeling of their morphological pattern. Two different assumptions of thermokarst depressions growth were considered: 1) synchronous start, when period of emergence of initial lakes is relatively short compared with the period of their further development, and the number of depressions remains constant; 2) asynchronous start, when new thermokarst lakes appear permanently. Theoretical statements were empirically tested using real thermokarst lakes parameters at the 16 test sites in different permafrost regions. The analysis of the model and empirical testing of the results demonstrated prevailing lognormal distribution of thermokarst lakes areas and proved the synchronous lakes emergence on the assumption that the rate of the lakes growth is proportional to the density of thermal losses through the side surface of the lake.
About the Authors
V. N. Kapralova
Sergeev Institute of Environmental Geoscience RAS, Moscow
Russian Federation
Russian Federation
T. V. Orlov
Sergeev Institute of Environmental Geoscience RAS, Moscow
Russian Federation
Russian Federation
O. N. Trapeznikova
Sergeev Institute of Environmental Geoscience RAS, Moscow
Russian Federation
Russian Federation
M. V. Arhipova
Sergeev Institute of Environmental Geoscience RAS, Moscow
Russian Federation
Russian Federation
P. V. Berezin
Sergeev Institute of Environmental Geoscience RAS, Moscow
Russian Federation
Russian Federation
A. V. Zverev
Sergeev Institute of Environmental Geoscience RAS, Moscow
Russian Federation
Russian Federation
E. N. Panchenko
Sergeev Institute of Environmental Geoscience RAS, Moscow
Russian Federation
Russian Federation
S. A. Sadkov
Sergeev Institute of Environmental Geoscience RAS, Moscow
Russian Federation
Russian Federation
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Review
For citations:
Kapralova V.N., Orlov T.V., Trapeznikova O.N., Arhipova M.V., Berezin P.V., Zverev A.V., Panchenko E.N., Sadkov S.A. AN ANALYSIS OF THE MORPHOLOGICAL STRUCTURE DEVELOPMENT OF THE THERMOKARST-LAKE PLAINS ON THE BASE OF THE MATHEMATICAL MODEL. Geomorfologiya. 2015;(3):3-13. (In Russ.) https://doi.org/10.15356/0435-4281-2015-3-3-13
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