War Related Building Damage Assessment in Kyiv, Ukraine, Using Sentinel-1 Radar and Sentinel-2 Optical Images

Natural and anthropogenic disasters can cause significant damage to urban infrastructure, landscape, loss of human life. Satellite based remote sensing plays a key role in rapid assessment, post-disaster reconnaissance recovery. In this study, we aim assess the performance Sentinel-1 Sentinel-2 data for building assessment Kyiv, capital city Ukraine, due ongoing war with Russia. For employ simple robust SAR log ratio intensity Sentinel-1, texture analysis Sentinel-2. To suppress changes from other features landcover types not related areas, construct mask built-up area using OpenStreetMap footprints World Settlement Footprint (WSF), respectively. As it is difficult get ground truth zone, qualitative accuracy very high-resolution optical images quantitative United Nations Center (UNOSAT) map was conducted. The results indicated that damaged buildings are mainly concentrated northwestern part study area, wherein Irpin, neighboring towns Bucha Hostomel located. detected damages show good match reference WorldView images. Compared by UNOSAT, 58% were correctly classified. highlight potential offered publicly available medium resolution satellite imagery mapping provide initial immediately after disaster.