Assessment of the performance of GIS-based analytical hierarchical process (AHP) approach for flood modelling in Uttar Dinajpur district of West Bengal, India

Floods have received global significance in contemporary times due to their destructive behavior, which may wreak tremendous ruin on infrastructure and civilization. The present research employed an integration of the Geographic information system (GIS) Analytical Hierarchy Process (AHP) method for identifying flood susceptibility zonation (FSZ), vulnerability (FVZ), risk (FRZ) humid subtropical Uttar Dinajpur district India. study combined a large number thematic layers (N = 12 FSZ N 9 FVZ) achieve reliable accuracy included multicollinearity analysis these variables overcome issues related highly correlated variables. According findings, 27.04, 15.62, 4.59% area were classified as medium, high, very high FRZ, respectively. ROC-AUC, MAE, MSE, RMSE model exhibited good prediction 0.73, 0.15, 0.16, 0.21, performance AHP has been evaluated using sensitivity analyses. It also recommends that persistent improvement this subject, such studies modifying criteria thresholds, changing relative criteria, desired matrix, will permit GIS MCDA be progressively adapted real hazard-management issues.