Present-day erosion rate at the northern slope of the Altai Ridge

Abstract

The present-day erosion rate has been estimated within mountain area of the northern slope of the Alai Ridge using two methods: 1) based on solid runoff data, and 2) based on sediments volume in the Abshirsai Lake. Total rate of erosion on the Alai Ridge slope amounts to 0.22 mm per year. The value calculated from the volume of the lake deposits is in reasonable agreement with data obtained by solid runoff measurements in the rivers near the lake.