Assessment of mudflows in the Shuraki Kapali river basin (left tributary of the Surkhob River, Tajikistan) and development of measures to reduce risk

Zaripov R.G., Imomnazarov F.S., Tagoybeykov A.S.

Published in: 2020

Publisher: Dushanbe: Publishing House "Promotion"LLC

Region / Country: Tajikistan

Topics: risk assessment, disaster risk management
Abstract:

The article is addressed to the example of integrated assessment of natural hazards in small river catchments. Shuraki Kapali River catchment is geographically confined to the central part of the northern slope of Peter the First (Petra Pervogo) Range, which is the basic orographic feature of the left side of Surkhob valley in its western part. The major reasons for debris flows threatening the settlements and infrastructure in the territory of assessed catchment are the surges of the glaciers No. 504, No. 505 and Lyulikharvi, overlaps of small side valleys with snow avalanches and activization of landslides with subsequent development of synergetic effects. As a result of field survey conducted in summer 2018, the special maps and maps of natural hazards of Shuraki Kapali River catchment were developed. Integrated assessment of natural hazards allowed to develop recommendations and implement a number of measures to reduce the risk of debris flows and landslides. The assessment of debris flow hazard in the catchment will make it possible to consider existing and possible natural threats at the stage of preparing and justifying engineering protection projects.

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