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All Journal JURNAL TEKNIK HIDRAULIK
Aris Ismanto
Department of Oceanography, Faculty of Fisheries and Marine Sciences, Diponegoro University, 50275, Semarang, Indonesia
Civil Engineering, Building, Construction & Architecture Engineering

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PREDICTION MODEL FOR TIDAL FLOOD CONTROL USING ONE-WAY COUPLING SCHEME IN PONTIANAK, WEST KALIMANTAN Randy Ardianto; Aris Ismanto; Sugeng Widada; Joko Sampurno
JURNAL TEKNIK HIDRAULIK Vol 13, No 2 (2022): JURNAL TEKNIK HIDRAULIK
Publisher : Pusat Litbang Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jth.v13i2.707

Abstract

Tidal flood prediction is an important part of action plans in disaster mitigation. The lack of information about the time, duration and location of potential events in the pre-disaster stage, can lead to greater damage and losses. This study aims to fill the pre-disaster information gap by designing a short-term prediction system for tidal flood in the Pontianak City using one-way coupling model scheme. The scheme collaborates weather prediction model (WRF-ARF), hydrodynamic model (DELFT3D), and hydraulic model (HEC-RAS). The validation of the flood prediction map using the contingency table method by 67 survey points, indicates a good accuracy with a Hanssen-Kuipper Skill score = 0.77 – 0.91. Furthermore, based on the simulation, it was found that the potential for flood areas in Pontianak is around 15.10% - 16,03% of the city area. Hence, this area should be the focus for the local government to take preventive action to reduce the potential disasters in the future. Generally, this study has succeeded in integrating models in various dynamic aspects to predict tidal flood and the model framework can be recommended in tidal flood early warning systems.Keywords: Prediction; Tidal Flood; WRF-ARW; DELFT3D; HEC-RAS 2D; Pontianak 
Co-Authors Joko Sampurno Randy Ardianto Sugeng Widada