Dual-Polarimetric SAR Measurements to Emphasize Liquefaction Surface Manifestations

This study is to discuss the ability of dual-polarimetric Sentinel-1 Synthetic Aperture Radar (SAR) measurements to observe surface liquefaction occurring during earthquakes.A polarimetric bi-temporal approach is proposed that, combining pre- and co-event SAR imagery, is able to emphasize areas affected by surface liquefaction.The approach is verified using Sentinel-1 SAR scenes related to the Turkey-Syria earthquake occurred in February 2023. The approach is shown to be effective in marking areas where surface liquefaction occurred.