Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2019, Vol. 16, No. 1, pp. 254-258
Estimation of the morphometric parameters of the landslide on the Bureyskoe Reservoir and its consequences on the basis of remote sensing data and field measurements
A.V. Ostroukhov
1 , V.I. Kim
1 , A.N. Makhinov
1 1 Institute of Water and Ecological Problems FEB RAS, Khabarovsk, Russia
Accepted: 15.02.2019
DOI: 10.21046/2070-7401-2019-16-1-254-258
Application of geoinformation modeling for rapid assessment of the morphometric characteristics of a landslide on the Bureyskoe Reservoir is analyzed. The landslide completely dammed the reservoir in its central canyon part and blocked the flow of river waters on December 11, 2018. The complexity of undertaking the research is determined by unfavourable environmental conditions that made it necessary to use heterogeneous data to estimate the morphometric parameters of the landslide and its consequences. There were used SRTM V.3.0 Earth’s radar sensing data, the Sentinel-2 remote sensing data (RSD) and expedition materials. To determine the physical dimensions of the initial (on the slope) and final (in the reservoir bed) landslide depositions, there were built digital models of the sliding surface (according to satellite geodetic measurements survey data (GNSS)) and the landslide surface (according to GNSS survey and depth measurements in the ArcGIS software environment). The areas damaged by the landslide-induced wave were estimated. Its height characteristics were determined on the base of the analysis of Sentinel-2 remote sensing data, field measurements and photographic materials, and the digital terrain model. As a result of the analysis of ERS data territories were identified where the wave destroyed forest. The area of such lands amounted to 300 hectares. Along the external borders of the exposed areas, isolines characterizing the wave height have been constructed on the basis of field measurements, analysis of photographic materials and digital elevation model (DEM) data. It was founded that the wave height reached 55–60 m in the zone of maximum impact and 30 m at a distance of up to 3 km from the landslide. The zone of the most distant impact stretched 12 km northeast along the reservoir.
Keywords: Bureyskoe Reservoir, landslide, geoinformation modeling, remote sensing, digital terrain model
Full textReferences:
- Kramareva L. S., Loupian E. A., Amelchenko Yu. A., Burtsev M. A., Krasheninnikova Yu. S., Sukhanova V. V., Shamilova Yu. A., Nablyudenie zony obrusheniya sopki v raione reki Bureya 11 dekabrya 2018 goda (Observation of the hill collapse zone near the Bureya River on December 11, 2018), Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2018, Vol. 15, No. 7, pp. 266–271.