Siberian Federal University

Issue

Journal of Siberian Federal University. Engineering & Technologies. 2015 8 (6)

Authors

Kharuk, Viacheslav I.; Shushpanov, Alexander S.; Im, Sergey T.

Contact information

Kharuk, Viacheslav I.:V.N. Sukachev Institute of Forest SB RAS 50/28 Academgorodok, Krasnoyarsk, 660036, Russia; Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia; Shushpanov, Alexander S.:V.N. Sukachev Institute of Forest SB RAS 50/28 Academgorodok, Krasnoyarsk, 660036, Russia; Im, Sergey T.:V.N. Sukachev Institute of Forest SB RAS 50/28 Academgorodok, Krasnoyarsk, 660036, Russia; Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia; Siberian State Aerospace University M.F. Reshetnev pr. Them. newspaper «Krasnoyarsk worker», Krasnoyarsk, 660014, Russia; E-mail:

Keywords

solifluction; permafrost in Siberia; larch forests; landsliding

Abstract

Landsliding dynamics during recent decades within larch-dominant permafrost zone of Mid Siberia was analyzed. Studies were based on high and medium resolution data (QuickBird, WorldView, Landsat) and gravimetric measurements (GRACE). The landsliding occurrence increased since the year 2006. Landsliding were located on the southward slopes only, and its number exponentially increased with slope steepness increase. The upper limit of the landslides corresponded to tree line. Landslides occurrence correlated with August precipitation (R2 = 0.6) and drought index (SPEI: R2 = 0.49), and with June -July-August gravimetric data (equivalent of water thickness anomalies, EWTA: R2 = 0.47-0.49). SPEI and EWTA are correlated (R2 = 0.38). The significant increase of temporal divergence between maximal and minimal values of EWTA was observed

Pages

744-754

Paper at repository of SibFU

https://elib.sfu-kras.ru/handle/2311/19840

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).