1D Hydrodynamic Modeling Performance Evaluation of MIKE Hydro and HEC-RAS
Publication: World Environmental and Water Resources Congress 2024
ABSTRACT
Floods are the most recurring and catastrophic events that cause many casualties, heavy toll on human lives, and geological damage to the topology. Floods cannot be stopped completely, but their effect can be minimized by proper flood mitigation practices using flood modeling. Flood modeling is one of the best non-structural measures used to minimize the effect of flooding, but it is intricate in developing countries due to data scantiness. In the present study, 1D hydrodynamic MIKE Hydro and HEC-RAS models are developed for Krishna River and its tributary Bhima River, India. Digital elevation model of 12.5 m resolution downloaded from the Alaska satellite facility is incorporated into the study to extract the geometry and cross-sections of the Krishna and Bhima Rivers. The performance of the models is assessed through statistical parameters such as correlation coefficient (CC), root mean square error (RMSE), percentage deviation in peak (% deviation), and index of agreement (d). The flood water level estimates acquired with the MIKE Hydro River models indicate a good model performance and can be applied to similar geographical conditions. The better performance of MIKE Hydro River is due to the manual digitization of river reach, leading to realistic cross-section estimation and flow velocity. The outcomes of the study can help policymakers in planning flood mitigation strategies and resource allocation.
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Published In
World Environmental and Water Resources Congress 2024
Pages: 520 - 530
History
Published online: May 16, 2024
ASCE Technical Topics:
- Business management
- Continuum mechanics
- Disaster risk management
- Disasters and hazards
- Engineering fundamentals
- Engineering mechanics
- Errors (statistics)
- Floods
- Fluid dynamics
- Fluid mechanics
- Hydraulic engineering
- Hydraulic models
- Hydrodynamics
- Hydrologic engineering
- Hydrologic models
- Mathematics
- Mitigation and remediation
- Models (by type)
- Natural disasters
- Practice and Profession
- River engineering
- Rivers and streams
- Statistics
- Water and water resources
Authors
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