Proxy data of surface water floods in rural areas: application to the evaluation of the IRIP intense runoff mapping method based on rainfall radar, satellite remote sensing and machine learning techniques

Materials and Methods The IRIP© hydrological geomatics mapping model, or "Indicator of Intense Pluvial Runoff", is confronted with past extreme events for which rainfall radar measurements were acquired and damage maps were derived from multispectral bi-temporal satellite imagery (Sentinel-1 and 2) and machine learning (ML) supervised classification algorithms. Results Study areas Six watersheds in the Aude and Alpes-Maritimes departments in the South of France are investigated over more than 2.000 km 2 of rural and periurban areas during three flash-flood events (2018-2020).