Estimation of the maximum amount  of deposits of various genetic types of lodging in the North Caucasus

M. Ch. Zalikhanov; A. K. Adzhiev; N. V. Kondratieva; V. V. Razumov

doi:10.7868/S0435428118030021

Estimation of the maximum amount of deposits of various genetic types of lodging in the North Caucasus

M. Ch. Zalikhanov, A. K. Adzhiev, N. V. Kondratieva, V. V. Razumov

https://doi.org/10.7868/S0435428118030021

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Abstract

An analytical method for the preliminary assessment of the maximum volume of mudflow deposit in the North Caucasus. It involves typification of mudflow catchments by genetic type of mudflows, keeping the height of river source and the estimate of the maximum volume of mudflow deposits using the analytical expressions suggested by the authors. To receive them, the multivariate analysis was made of the relations between the maximum amount of deposited sediments (W) with the parameters such as the area of debris catchment (S), the average slope of the channel (б) and the length of the debris channel (L), for the investigated area. On this basis, the analytical expressions were obtained for the approximation of the W(S, L, б) equations depending on the genesis of the floods and the elevation of the sources. To construct the empirical equations, the mudflow statistics was used for various basins in the North Caucasus for the period of more than 50 years.

Keywords

debris basins, types of mudflow, mudflow activity, mudflow deposits, source height, channel length, correlation coefficient, debris fan

About the Authors

M. Ch. Zalikhanov

High-Mountain Geophysical Institute, Nalchik
Russian Federation

A. K. Adzhiev

High-Mountain Geophysical Institute, Nalchik
Russian Federation

N. V. Kondratieva

High-Mountain Geophysical Institute, Nalchik
Russian Federation

V. V. Razumov

High-Mountain Geophysical Institute, Nalchik
Russian Federation

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Review

For citations:

Zalikhanov M.Ch., Adzhiev A.K., Kondratieva N.V., Razumov V.V. Estimation of the maximum amount of deposits of various genetic types of lodging in the North Caucasus. Geomorfologiya. 2018;(3):24-31. (In Russ.) https://doi.org/10.7868/S0435428118030021