Detection of Surface Water and Floods with Multispectral Satellites

The use of multispectral satellite imagery for water monitoring is a fast and cost-effective method that can benefit from the growing availability medium–high-resolution free remote sensing data. Since 1970s, has been exploited by adopting different techniques spectral indices. high number available sensors their differences in spatial characteristics led to proliferation outcomes depicts nice picture potential limitations each. This paper provides review applications extent delineation flood monitoring, highlighting trends research studies adopted freely optical imagery. performances most common indices segmentation are qualitatively analyzed assessed according land cover types provide guidance targeted specific contexts. comparison carried out collecting evidence obtained several identifying overall accuracy (OA) with each configuration. In addition, issues faced when dealing discussed, together opportunities offered new-generation passive satellites.