Formation of the 2018 Bureya Landslide, Far East of Russia

Зеркаль, О.В.; Махинов, А. Н.; Strom, Alexander; Kim, Vladimir I.; Kharitonov, Michael E.; Фоменко, И. К.

doi:10.1007/978-3-030-60319-9_11

Cited by 2 publications

(3 citation statements)

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“…The reservoir level on 11 December 2018 was 253 m. Because the landslide mass fell into the reservoir, this led to up to a 60 m high overwash, which completely destroyed the taiga on the opposite bank of the river valley in a strip of up to 550 m. The overwash extended to 3.6 km up the Sredny Sandar River valley, located opposite the slope failure zone, destroying the taiga in a strip up to 300 m wide. Upstream of the Bureya River, the overwash is traced at a distance of 7 km, and downstream-at a distance of 4 km, which is consistent with the north-north-east direction of the displacement of sliding masses, oriented more upstream [57].…”

Section: Study Areasupporting

confidence: 63%

“…The geological and geographical analysis of the landslide, assessment of its characteristics, possible mechanisms of its formation and slope failure were carried out in [56][57][58] based on in-situ studies. The total volume of displaced rocks at all formation stages was estimated at 25 million m 3 .…”

Section: Study Areamentioning

confidence: 99%

“…Figure 2 shows two photos of the landslide zone taken on 25 December 2019 [56] and in June 2019 [62] after the channel creation as a result of blasting and flood erosion. The Bureya River crosses the relatively low mountains of the Bureya area [57]. The absolute elevations of the adjoining dome-shaped watershed heights reach 600-640 m. The cross-section of the Bureya River valley, which had, before the creation of the reservoir, an elevation (at the site of the landslide formation) of 187 m above sea level, within the territory of interest is characterized by a trapezoidal shape with a steep left southern slope and a gentler right northern side.…”

Section: Study Areamentioning

confidence: 99%

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Fusion of SAR Interferometry and Polarimetry Methods for Landslide Reactivation Study, the Bureya River (Russia) Event Case Study

et al. 2021

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In this paper, we demonstrate the estimation capabilities of landslide reactivation based on various SAR (Synthetic Aperture Radar) methods: Cloude-Pottier decomposition of Sentinel-1 dual polarimetry data, MT-InSAR (Multi-temporal Interferometric Synthetic Aperture Radar) techniques, and cloud computing of backscattering time series. The object of the study is the landslide in the east of Russia that took place on 11 December 2018 on the Bureya River. H-α-A polarimetric decomposition of C-band radar images not detected significant transformations of scattering mechanisms for the surface of the rupture, whereas L-band radar data show changes in scattering mechanisms before and after the main landslide. The assessment of ground displacements along the surface of the rupture in the 2019–2021 snowless periods was carried out using MT-InSAR methods. These displacements were 40 mm/year along the line of sight. The SBAS-InSAR results have allowed us to reveal displacements of great area in 2020 and 2021 snowless periods that were 30–40 mm/year along the line-of-sight. In general, the results obtained by MT-InSAR methods showed, on the one hand, the continuation of displacements along the surface of the rupture and on the other hand, some stabilization of the rate of landslide processes.

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Section: Study Areasupporting

confidence: 63%

Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

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