Abstract
This paper presents SAR interferometric data obtained in the study of surface deformations of different origin within the Upper Angara-Muya interbasin link of the northeastern segment of the Baikal rift system, Russia. Differential SAR interferometry using images with small perpendicular baselines was applied in this geodynamical study. The potential of using ENVISAT/ASAR and ALOS/PALSAR data is discussed. New geodynamical data on recent strain patterns were obtained. The endogenous linear-localized and areal deformations were revealed in the influence zone of the active Muyakan fault. The origin of these deformations is discussed. The landslide that negatively affects the Baikal-Amur railway facilities is also studied. The use of SAR data for detailed study and monitoring of the landslide is discussed. It is confirmed that natural hazard in the study area is growing due to the ongoing landsliding.
Highlights
Synthetic aperture radar interferometry (InSAR) technique is implemented for collection and analysis of space-borne radar data since 1980s [Gabriel, Goldstein, 1988; Gabriel et al, 1989]
We have studied a potential natural hazard near a sections of the Baikal-Amur Railway, that is a branch of the East Siberian Railway (BAM ESR)
The study area is located within the Upper AngaraMuya interbasin link in the northeastern segment of the Baikal rift system (Fig. 1)
Summary
Synthetic aperture radar interferometry (InSAR) technique is implemented for collection and analysis of space-borne radar data since 1980s [Gabriel, Goldstein, 1988; Gabriel et al, 1989]. We have studied a potential natural hazard near a sections of the Baikal-Amur Railway, that is a branch of the East Siberian Railway (BAM ESR). For this purpose, we use DINSAR processing of the time series of SAR images for 2004–2011. The first section of the paper provides a brief description of the interferometric technique and a list of SAR images. The third section presents the interferometric data processing results and discusses endogenous and exogenous deformation related to the Muyakan fault and the Kazankan landslide, respectively
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