Rainfall-Runoff Process of Pallikaranai Marshland Under the Influence of Perungudi Landfill Site using HEC–HMS
A.Harinadha Babu1, N. Kumara Swamy2, S. Krishnaiah3
1A. Harinadha Babu, Research Scholar, Jawaharlal Nehru Technological University Anantapuramu, (JNTUA), Ananthapuramu, India.
2 Dr. N. Kumara Swamy, Dean & Professor, Department of Civil Engineering, Vasireddy Venkatadri Institute of Technology, Guntur, India.
3Prof. S. Krishnaiah, Professor, Department of Civil Engineering, JNTUA College of Engineering -Anantapuramu, Kalikiri, India.
Manuscript received on 06 December 2023 | Revised Manuscript received on 27 December 2023 | Manuscript Accepted on 15 February 2024 | Manuscript published on 28 February 2024 | PP: 4-12 | Volume-13 Issue-3, February 2024 | Retrieval Number: 100.1/ijitee.C980413030224 | DOI: 10.35940/ijitee.C9804.13030224
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The Wetland River basins are one of the critical urban watershed areas due to complex urban activities. The rainfall-runoff process in urban catchment areas is influenced by solid waste dumping, leachate generation from dumping sites, aquatic weeds, sewage generated by municipalities and town panchayats, effluents generated by industries, sand mining along riverbeds, and encroachment due to urban activities. Considering these complexities, this study aims to predict stream flow in a river basin for a given amount of rainfall using HEC-HMS software models. The sub-basin elements are used to convert rainfall to runoff. A meteorological model is used to assign the boundary conditions for sub-basins, which include precipitation, short-wave and long-wave radiation, and potential evapotranspiration. A time series of flow data is used as input to a model to estimate the average annual rainfall in the basin. Calibrate the model, as it’s required for optimisation to be carried out using observed discharge. As a result, considering the three sub-basins and two reach sites, the increase in drainage area is directly proportional to excess volume, direct runoff volume, and discharge volume. The reliability of the model is achieved using both observed data and predicted data.
Keywords: Basin Model, Hydrologic Elements, Rainfall, Run-off, River Basin.
Scope of the Article: Computational Techniques in Civil Engineering