Earth’s Cryosphere, 2017, Vol. XXI, No. 4, p. 10-18
TEMPERATURE BEHAVIOR OF PERMAFROST IN EAST SIBERIA AND RUSSIAN FAR EAST: A REGIONAL MODEL IN CONTROLLED-SOURCE ELECTROMAGNETIC FIELDS
L.G. Neradovskii
Melnikov Institute of Permafrost, SB RAS, 36, Merzlotnaya str., Yakutsk, 677010, Russia; leoner@mpi.ysn.ru
The paper presents synthesis of land-based resistivity surveys for estimation of the thermal behavior of permafrost in East Siberia and the Russian Far East. The approach is based on correlation between the attenuation rate of electromagnetic fields in the active layer and ground temperatures. In the study area, this correlation shows a satisfactory fit to the logistic function, which makes base for a regional model. The model has been tested on several specific engineering objects. It is applicable to assessment of the initial thermal state of permafrost and its subsequent changes in hardly accessible and scarcely populated areas.
Active layer, frozen ground, temperature, temperature logging, attenuation parameter, GPR, frequency-induction soundings, regional model