An Open-Source Tool for Mapping War Destruction at Scale in Ukraine using Sentinel-1 Time Series
This provides humanitarian organizations with a tool for rapid and flexible war impact assessments in widespread conflicts like Ukraine, though it is incremental as it builds on existing damage assessments and open data.
The researchers tackled the problem of assessing building damage in war zones by developing a scalable method using machine learning on Synthetic Aperture Radar time series, resulting in probabilistic damage estimates at the building level with publicly accessible dashboards for dynamic viewing and custom mapping.
Access to detailed war impact assessments is crucial for humanitarian organizations to assist affected populations effectively. However, maintaining a comprehensive understanding of the situation on the ground is challenging, especially in widespread and prolonged conflicts. Here we present a scalable method for estimating building damage resulting from armed conflicts. By training a machine learning model on Synthetic Aperture Radar image time series, we generate probabilistic damage estimates at the building level, leveraging existing damage assessments and open building footprints. To allow large-scale inference and ensure accessibility, we tie our method to run on Google Earth Engine. Users can adjust confidence intervals to suit their needs, enabling rapid and flexible assessments of war-related damage across large areas. We provide two publicly accessible dashboards: a Ukraine Damage Explorer to dynamically view our precomputed estimates, and a Rapid Damage Mapping Tool to run our method and generate custom maps.