Flood Susceptibility Mapping of Lakhimpur District of Assam using GIS-Based Multi-Criteria Decision Analysis

This study assesses flood susceptibility in Lakhimpur district, Assam, India, using a GIS-based multiparametric approach and Analytical Hierarchy Process (AHP). Analyzing 10 flood conditioning factors, the study reveals 45.20% (1029.20 sq. km) of the district is highly susceptible, 52.86% (1203.62 sq. km) moderately susceptible, and 2% (45.50 sq. km) low susceptible. The district’s alluvial plains, heavy monsoon rainfall, and significant river discharge contribute to its high flood vulnerability. The resulting flood susceptibility map serves as a critical tool for local authorities and stakeholders to develop and implement effective flood mitigation strategies, ultimately reducing damage and loss of life in this flood-prone region.