Flood prioritization based on fuzzy best worse multi‑criteria decision‑making method

Authors : Sarita Gajbhiye Meshram1 · Ali Reza Ilderomi2 · Mehdi Sepehri3 · Celso Augusto Guimarães Santos4

Abstract :

Flood is one of the major problems in the Sad Ekbatan Watershed, northern Hamadan province, Iran. This problem imposes severe damage related to economic issues. Therefore, prioritizing the study area based on the fooding degree can be considered for identifying hotspot fooded areas for performing soil and water conservation practices. In this study, to prioritize sub-watersheds from the viewpoint of fooding degree, fve food-related criteria were considered: entropy of drainage network (EN), index of connectivity (IC), Stream Power Index (SPI), curvature (C), and curve number (CN). Then, the fuzzy-based best worse multi-criteria decision-making (F-BWM) method was used to assign weights to these criteria and their combination to determine the fooding degree for each sub-watershed. The prioritization of sub-watersheds indicated that the sub-watersheds #14 and #21 are the most and least susceptible areas to fooding, respectively