DEW-TO-NATURAL TENSITY OF GEOMORPHOLOGIC PROCESSES IN THE RUSSIAN FAR EAST

E. V. Lebedeva; S. V. Shvarev; V. I. Gotvansky

doi:10.15356/0435-4281-2014-4-48-59

DEW-TO-NATURAL TENSITY OF GEOMORPHOLOGIC PROCESSES IN THE RUSSIAN FAR EAST

E. V. Lebedeva, S. V. Shvarev, V. I. Gotvansky

https://doi.org/10.15356/0435-4281-2014-4-48-59

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Abstract

A map of naturally determined intensity of geomorphologic processes scale 1:8 million on the territory of the Russian Far East was done. The geomorphologic processes intensity is the readiness of geomorphologic system to pull out of the balanced condition and danger of catastrophic processes developing under the action of external and/or internal forces. Highlighted areas with different potential intensity of geomorphologic processes, the value of which in the region ranges from 3 to 16 conventional points and depends on the degree of ecology-geomorphologic hazard modern relief processes, depth of relief dissection, seismicity, precipitation, availability of loose thick permafrost. Study results confirmed the formerly stated supposition about increasing of nature-defined intensity of endogenous and exogenous processes of the North-Western Pacific Ocean coast area from West to East. Thus, potential processes intensity of the Western Okhotsk Sea coast area was estimated in 7-10 conditional points, in the Sakhalin – 10-12, in the Eastern Kamchatka – 13-15, and in separate Kuril Islands – 16 points. Intensity of geomorphologic processes distribution analysis totally shows near-normal distribution of spaces with different number of points, while maximum is 6-8 points areas, occupying totally near half of the territory (47% ). Potentially catastrophic areas (over 15 points) occupy near 0,3% of studied territory, but in certain regions such as the Kurils, the rate can rise up to 49% . Sites with extremely high intensity (10-15 points) extend on the 15,2% of the territory, sites with high intensity (5-9 points) – 76,2% , sites with low intensity (under 5 points) cover just near 8,3% of the territory.

Keywords

intensity of geomorphologic processes, the Far East, catastrophic geomorphologic processes, ecological and geomorphological mapping

About the Authors

E. V. Lebedeva

Institute of Geography RAS, Moscow
Russian Federation
Laboratory of geomorphology

S. V. Shvarev

Institute of Physics of the Earth RAS, Moscow
Russian Federation

V. I. Gotvansky

Russian Geographical Society, Moscow
Russian Federation

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Review

For citations:

Lebedeva E.V., Shvarev S.V., Gotvansky V.I. DEW-TO-NATURAL TENSITY OF GEOMORPHOLOGIC PROCESSES IN THE RUSSIAN FAR EAST. Geomorfologiya. 2014;(4):48-59. (In Russ.) https://doi.org/10.15356/0435-4281-2014-4-48-59