Akademik Veri Yönetim Sistemi
Advances in Space Research, 2026 (SCI-Expanded, Scopus)
On December 12, 2017, a mass movement occurred at an open-pit mine site located approximately 18 km south of the Göynük district in Bolu province. As a result, deep cracks formed in the upper step, which had been left for safety purposes, and seven residences in the residential area near the operating boundary were damaged. In this study, the landslide area in question was analysed using the InSAR method using SAR data divided into consecutive periods with 75% temporal overlap. The detectability of deformation signals from the pre-landslide period was investigated. Deformation rates for each period were analysed as a percentage based on the DS points identified in the deformation area, and the time-dependent deformation behaviour of these points was examined in detail. Furthermore, a ten-month time series covering the pre-landslide period was created to evaluate the temporal evolution of the mass movement. The findings showed that approximately 10 months before the landslide, the DS points located in the landslide crown area were subjected to horizontal deformation toward the west; the vertical components accompanying this deformation varied in the form of uplift and subsidence. This provides important clues about surface tension accumulation, soil weaknesses, and the initial mechanics of movement. The study demonstrates that periodic monitoring of InSAR data can be an effective method for early detection of slowly developing landslides.