Siberian Federal University

Issue

Journal of Siberian Federal University. Biology. 2025 18 (2)

Authors

Bykov, Nikolay I.; Rygalova, Natalia V.; Shigimaga, Anna A.

Contact information

Bykov, Nikolay I. : Institute for Water and Environmental Problems SB RAS Barnaul, Russian Federation; ; ORCID: 0000-0003-3756-1859; Rygalova, Natalia V. : Institute for Water and Environmental Problems SB RAS Barnaul, Russian Federation; ORCID: 0000-0002-0078-6133; Shigimaga, Anna A. : Institute for Water and Environmental Problems SB RAS Barnaul, Russian Federation

Keywords

dendrochronology; dendrochronological index of avalanche activity; Central Altai; Chuya; snow avalanches; tree rings

Abstract

The present study reports dendrochronological dating of maximum snow avalanches in nine avalanche paths of the Chuya River basin (Central Altai). Special aspects of using various markers for the dendrochronological method of avalanche dating were determined. The study revealed patterns of avalanche activity in the avalanche paths and the frequency of the largest avalanches. In most of the avalanche paths studied, 3–4-year avalanche return periods were calculated, and in some, return periods reached 10 years. The study found that the use of the integrated indicator, called the dendrochronological index of avalanche activity, should be limited to individual avalanche paths, and it is ineffective to use it for generalizing over the study area, where there are various constant factors of avalanche formation in local avalanche paths. Only in individual cases, the causes (factors) of avalanches can be determined using the dendrochronological method

Pages

153–173

EDN

XLCXHW

Paper at repository of SibFU

https://elib.sfu-kras.ru/handle/2311/156627

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