Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2025, V. 22, No. 3, pp. 329-336
Rock collapse on the Bureya River — 6 years of satellite monitoring
V.V. Sukhanova
1 , A.V. Boroditskaya
1 , Yu.A. Amelchenko
1 , A.V. Kashnitskii
2 1 Far Eastern Center of SRC "Planeta", Khabarovsk, Russia
2 Space Research Institute RAS, Moscow, Russia
Accepted: 23.06.2025
DOI: 10.21046/2070-7401-2025-22-3-329-336
The paper presents the results of a six-year satellite monitoring study of the aftermath of the December 2018 rock avalanche on the Bureya River. The primary focus is on analyzing changes in the morphometric characteristics of the breach formed after the collapse and their impact on the river’s hydrological regime. The research is based on Earth remote sensing data obtained from satellite systems such as Sentinel-2. The results indicate that the slope stabilization process in the breach completed by 2022, and the Bureya River formed a new channel. Additionally, signs of a landslide-dammed mountain lake formation were identified at the mouth of the Sredny Sandar River, caused by a debris dam composed of rock fragments and bottom sediments. Special attention is given to changes in vegetation cover on the slopes of the Sredny Sandar River, where the destroyed forest has gradually begun to recover, as evidenced by NDVI values. Seasonal variations in the hydrological regimes of the Sredny Sandar, Bolshoy Sandar, and Maly Sandar rivers were also noted, including shifts in ice melt and freeze-up periods. The study confirms the effectiveness of satellite monitoring for assessing the long-term consequences of natural disasters and predicting further changes in the region.
Keywords: Bureya River, Sredny Sandar River, collapse slopes, Bureya River canal, satellite systems for Earth observation, remote sensing
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