Ahmed Naseh Ahmed Hamdan
Rainfall-Runoff Modeling Using the HEC-HMS Model for the Al-Adhaim River Catchment, Northern Iraq
Hamdan, Ahmed Naseh Ahmed; Almuktar, Suhad; Scholz, Miklas
Authors
Dr Suhad Almuktar S.A.A.A.N.Almuktar1@salford.ac.uk
Teaching Fellow in Civil Engineering , University of Salford, School of Science, Engineering & Environment (SEE)
Miklas Scholz
Abstract
It has become necessary to estimate the quantities of runoff by knowing the amount of rainfall to calculate the required quantities of water storage in reservoirs and to determine the likelihood of flooding. The present study deals with the development of a hydrological model named Hydrologic Engineering Center (HEC-HMS), which uses Digital Elevation Models (DEM). This hydrological model was used by means of the Geospatial Hydrologic Modeling Extension (HEC-GeoHMS) and Geographical Information Systems (GIS) to identify the discharge of the Al-Adhaim River catchment and embankment dam in Iraq by simulated rainfall-runoff processes. The meteorological models were developed within the HEC-HMS from the recorded daily rainfall data for the hydrological years 2015 to 2018. The control specifications were defined for the specified period and one day time step. The Soil Conservation Service-Curve number (SCS-CN), SCS Unit Hydrograph and Muskingum methods were used for loss, transformation and routing calculations, respectively. The model was simulated for two years for calibration and one year for verification of the daily rainfall values. The results showed that both observed and simulated hydrographs were highly correlated. The model’s performance was evaluated by using a coefficient of determination of 90% for calibration and verification. The dam’s discharge for the considered period was successfully simulated but slightly overestimated. The results indicated that the model is suitable for hydrological simulations in the Al-Adhaim river catchment.
| Journal Article Type | Article |
|---|---|
| Acceptance Date | Mar 24, 2021 |
| Online Publication Date | Mar 26, 2021 |
| Deposit Date | Jun 6, 2025 |
| Publicly Available Date | Jun 10, 2025 |
| Journal | Hydrology |
| Electronic ISSN | 2306-5338 |
| Publisher | MDPI |
| Peer Reviewed | Peer Reviewed |
| Volume | 8 |
| Issue | 2 |
| Pages | 58 |
| DOI | https://doi.org/10.3390/hydrology8020058 |
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