Zulkarnain Hassan
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Preferred name
Zulkarnain Hassan
Official Name
Zulkarnain, Hassan
Alternative Name
Hassan, Zulkarnain Bin
Hassan
Hassan, Z
Hassan', Z
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Scopus Author ID
55766149700

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  • Publication
    Assessing Hydrological Response in the Timah-Tasoh Reservoir Sub-Catchments: Calibration and Validation using the HEC-HMS Model
    ( 2024)
    N A S Nordin
    ;
    Zulkarnain Hassan
    ;
    N M Noor
    ;
    Ain Nihla Kamarudzaman
    ;
    A S A Ahmadni
    Abstract Hydrological modelling is a tool that is frequently used for assessing the hydrological response of a basin as a result of precipitation. It is also a vital component as water resources and environmental planning management. The study deals with calibrating and validating the hydrological response in the sub-catchments of the Timah-Tasoh reservoir using the hydrological model named Hydrologic Engineering Center – Hydrologic Modelling System (HEC-HMS). This study uses the SCS Curve Number, the SCS Unit Hydrograph, the constant monthly baseflow, and lag routing for the model development. The model was simulated for ten (10) years for calibration and nine (9) years for validation. The model calibration and validation efficiency were assessed using the coefficient of correlation (R). The findings show that the HEC-HMS model performs satisfactorily in simulating the observed daily inflow series, with the R-value of 0.4902-0.5139 during calibration and 0.5047-0.5559 during validation process. Thus, the result obtained from this study can be used as a preliminary development of hydrological modelling of the catchment of the Timah-Tasoh reservoir and can be used for extend application such as water inflow forecasting, impact of land use to the reservoir and others.