Active landslides in the Rogun Catchment, Tajikistan, and their river damming hazard potentialстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 26 января 2022 г.
Аннотация:The region of Tajikistan where the Rogun HydropowerProject is currently under construction has experienced large andcatastrophic slope failures in the past, often triggered by earthquakes.Co-seismic slope failures are thus common and pose ahigh hazard potential; however, to date, no specific analysis ofslope activity in this area has been presented in internationaljournals. Here, we present an inventory of active landslides identifiedthrough satellite imagery analysis and in particular byexploiting space-borne differential radar interferometry. Surfacedisplacements provide the basis for the detection of active slopeinstabilities, which are then further classified by using geomorphologicalindicators visible in optical satellite imagery. Additionally,the proximity of active landslides to tectonic lineaments, aswell as regional seismicity, is analysed to investigate potentialrelationships and to provide an integrated river damming hazardpotential. The results show that approximately 31% of all detectedlandslides would have a high damming hazard potential uponcatastrophic failure, highlighting the importance of such phenomenafor efficient long-term land use planning and management ofhydropower plants.