DOI: 10.24411/1728-323X-2018-12084

Section

Physical geography and biogeography, soil geography and landscape geochemistry

Title

GEOGRAPH-HYDROGRAPHY PREREQUISITES FOR THE FORMATION OF INUNDATIONS AND ITS CONSEQUENCES IN THE NORTHWEST CAUCASUS

Сontributors

S.        V. Dolgov, Senior Researcher, This email address is being protected from spambots. You need JavaScript enabled to view it.;

S.        I. Shaporenko, Senior Researcher This email address is being protected from spambots. You need JavaScript enabled to view it..

Institute of Geography Russian Academy of Sciences, Moscow, Russia

Abstract

The regional geographical and hydrological analysis of natural and anthropogenic factors in the formation of floods and their consequences in the Northwest Caucasus was completed. The research is based on data on the passage of an extremely high floods in twelve villages, located on the left bank tributaries of the Kuban River (the city of Krymsk, Abinsk, village Shapsugskaya, Severskaya, Smolenskaya, Kalugskaya, Stavropolskaya, Novodmitrievskaya, towns Akhtyrsky, Kholmsky, Ilsky, village Shaban- ovskoe).

Particular attention is paid to analysis of the level of the rivers. The data from long-term observations at the stations of the state Hydrometeorological network and knowledge, obtained during fieldwork in key areas, was used. The statistical dependents of maximum rise in water levels in the rivers from the hydrographic characteristics of the river basin (the closest to the catchment area and the length of the river, when it exceeds the size of 45—50 km) made describe.

We come to conclusion about the leading role of natural factors in the formation of floods, especially extremely high precipitation. They become more frequent in recent decades due to the increase in the recurrence of meridional forms of atmospheric circulation, blocking Mediterranean cyclones over the region in the summer. Warnings protective measures were proposed to minimize possible losses in the future, when extremely high flood will passing.

Keywords

Northwest Caucasus, rivers, floods, inundations, natural and anthropogenic factors, flood protection.

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