Investigating the flood potential of basins to locate the implementation of remedial operations in the Siah Khor watershed using VIKOR, TOPSIS, and HEC-HMS model (case study: Siah Khor watershed-Islamabad west)

The present study embarks on a strategic initiative to prioritize flood-prone watersheds, aiming for the optimal placement of watershed structures within the Siah Khor watershed, situated in the northeast of Islamabad West in Kermanshah province. Addressing the complexities of watershed management and flood control, the research employs an integrated methodological approach. This approach harmoniously combines multivariable decision systems, particularly the VIKOR(Vlsekriterijumska optimizacija I Kompromisno Resenkje) and TOPSIS(Technique for order preference by similarity to ideal solution) methods, with the advanced capabilities of the HEC-HMS hydrological model. The synergy of these methodologies facilitates a comprehensive analysis, leading to the precise identification and ranking of critical sub-basins. Such a targeted approach significantly enhances the allocation of resources, ensuring that flood mitigation efforts are both effective and efficient. Delving deeper into the nuances of watershed management, the study meticulously examines the pivotal criteria essential for informed decision-making in constructing watershed dams. It introduces an innovative, structured hierarchical model that effectively weights these criteria, thereby augmenting the clarity and precision of decisions. This comprehensive framework not only streamlines the decision-making process but also fosters a more systematic and principled approach to managing watershed regions. Through its meticulous analysis and strategic integration of sophisticated models, the study makes a substantial contribution to the field of watershed management. It presents a robust, multi-faceted strategy for flood prevention and control, demonstrating the potential for significant advancements in environmental management and sustainable development.