Estimation of River Flood Discharge by using 2D Model

Akbar Rizaldi, Idham Moe, Mohammad Farid, Herryan Kendra

2018

Abstract

Flood disaster is still a problem in many countries in the world; therefore, it is also still important to study about the flood. There have been many flood studies conducted by researchers. Modelling is one of the topics of flood studies which is usually discussed. Two-dimensional (2D) model is commonly used in flood modelling because it provides more information compared with one dimensional (1D) model. By doing flood simulation using a 2D model, important information, particularly related to inundation area, can be obtained so that the analysis in the flood study can be more comprehensive. In this study, 2D flood model is applied to Bolango River in order to estimate its actual capacity. The modelling process is conducted by using rainfall ground stations in a period of 2010-2017, land-use map data in 2015, and a digital elevation model (DEM) by combining SRTM data and observed cross-section data. The boundary condition at the downstream is sea water level and at the upstream is the flood discharge from Bone River. The model is verified by comparing inundated area from simulation result with the observation data. The model result shows good agreement with the observed data. Based on the result, the bank-full capacity of Bolango River is 189 m3/s, which is just 30% of 25 years return period of flood discharge.

Paper Citation

in Harvard Style

Rizaldi A., Moe I., Farid M. and Kendra H. (2018). Estimation of River Flood Discharge by using 2D Model.In Proceedings of the 6th International Seminar on Ocean and Coastal Engineering, Environmental and Natural Disaster Management - Volume 1: ISOCEEN, ISBN 978-989-758-455-8, pages 137-143. DOI: 10.5220/0008560301370143

in Bibtex Style

@conference{isoceen18,
author={Akbar Rizaldi and Idham Moe and Mohammad Farid and Herryan Kendra},
title={Estimation of River Flood Discharge by using 2D Model},
booktitle={Proceedings of the 6th International Seminar on Ocean and Coastal Engineering, Environmental and Natural Disaster Management - Volume 1: ISOCEEN,},
year={2018},
pages={137-143},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0008560301370143},
isbn={978-989-758-455-8},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 6th International Seminar on Ocean and Coastal Engineering, Environmental and Natural Disaster Management - Volume 1: ISOCEEN,
TI - Estimation of River Flood Discharge by using 2D Model
SN - 978-989-758-455-8
AU - Rizaldi A.
AU - Moe I.
AU - Farid M.
AU - Kendra H.
PY - 2018
SP - 137
EP - 143
DO - 10.5220/0008560301370143