Demonstrates the variability of initial abstraction in catchments, suggesting better modeling practices for ungauged basins.
The study revealed notable variability in initial abstraction (IA) values among the three catchments, indicating that the assumption of a uniform IA is inappropriate. These findings highlight the importance of conducting a preliminary assessment of IA using available site-specific information to approximate realistic values. Overall, the results support the potential of HEC-HMS as a transferable modeling tool for ungauged basins in data-limited regions, provided that key hydrological parameters are carefully evaluated prior to application.
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Khattaoui et al. (2026) studied this question.
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