Landslides monitoring with SBAS-InSAR and 3D wavelet phase filtering

Satellite radar images have many applications in determining landslide displacement. In this study, 3 landslides of Tabriz have been studied with 150 Sentinel-1 images and a small baseline subset (SBAS) method from 2014 to 2021.3D wavelet decomposition (3WD) has been used to noise mitigation and correct reconstruction of phase. The average landslide displacement (ALD) time series of Pasdaran Highway, Negin Park and Shahid Valipour Street has increased after the precipitation in mid-2017. To global navigation satellite system (GNSS) observations in 2018, landslides displacement has been determined in 3 regions. GNSS results are fully consistent with ALD and have a correlation of 0.95. The average ALD correlation of the study areas with precipitation is more than 0.8 and the displacement modeled with 3WD increased the correlation by 0.15.