Flood analysis using HEC-RAS model: a case study for Hafr Al-Batin, Saudi Arabia

Al-Zahrani, Muhammad A.; Al-Areeq, Ahmed M.; Sharif, Hatim O.

doi:10.1051/e3sconf/20160704024

Cited by 5 publications

(3 citation statements)

References 7 publications

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“…The 1D model of HEC-RAS has been widely used in river flood analysis [17][18][19][20][21][22][23][24], as well as their two-dimensional model [24][25][26][27][28]. In their newest version, HEC-RAS added the ability to perform combined 1D and 2D unsteady-flow routing within the unsteady flow model, allowing work on a larger river system, and implementing 2D modeling only in the areas that require a higher level of hydrodynamic precision.…”

Section: Coupled 1d-2d Methodsmentioning

confidence: 99%

Case Study of HEC-RAS 1D–2D Coupling Simulation: 2002 Baeksan Flood Event in Korea

Dasallas

Kim

2019

Water

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Recent studies strongly suggest the possibility of more frequent extreme events as a result of the changing climate. These weather extremes, such as excessive rainfall, result in debris flow, river overflow and urban flooding, which can pose a substantial threat to the community. An effective flood model is therefore a crucial tool in flood disaster control and mitigation. A number of flood models have been established in recent years. However, the major challenge in developing effective and accurate flood models is the disadvantage of running multiple models for separate, individual conditions. Among the solutions in recent research is the development of combined 1D–2D flood modeling. Coupled 1D–2D flood modeling allows the channel flows to be represented in 1D and the overbank flow to be modeled in 2D. In order to test the efficiency of the approach, this research aims to assess the capability of the U.S. Army Corps of Engineers Hydrologic Engineering Center River Analysis System (HEC-RAS) model’s implementation of the combined 1D–2D hydraulic computation in simulating river overflow inundation. For verification, the simulation is applied to the Baeksan river levee breach event in South Korea in 2011. The simulation results show similarities of the observed data and the outputs from widely used flood models. This proves the applicability of the HEC-RAS 1D–2D coupling method as a powerful tool in simulating accurate inundations for flood events.

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Section: Coupled 1d-2d Methodsmentioning

confidence: 99%

Case Study of HEC-RAS 1D–2D Coupling Simulation: 2002 Baeksan Flood Event in Korea

Dasallas

Kim

2019

Water

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“…Hydrometeorological catastrophes cannot be totally evaded, but the impacts and triggering factors can be handled by developing effective risk reduction strategies through application of latest geospatial tools and decision support systems (Khattak et al, 2016). The application of full modelling steps from rainfall-runoff to test different scenarios of land use variation is a paramount necessity tool to gain spatial coherence when estimating losses (Al-Zahrani, Al-Areeq, & Sharif, 2016;Booij, 2005;De Bruijn, Diermanse, & Beckers, 2014;Gems, Achleitner, Huttenlau, Thieken, & Aufleger, 2009;Golshan, Jahanshahi, & Afzali, 2016).…”

Section: Introductionmentioning

confidence: 99%

Assessing land use /cover variation effects on flood intensity via hydraulic simulations

Ismail

Arioua

Idrissi³

et al. 2018

Geology, Ecology, and Landscapes

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Despite the semi-arid to arid nature of its climate, Morocco is exposed, like all the Mediterranean countries to inundations, which can be very damaging for public and private infrastructure, and cause many victims. On Monday 10 August 2015, one of Oued El Abid tributary raised in a remarkable way, causing five deaths and serious material damage in Iminwargue village (Azilal province). This study comes to assess the impact of land use/cover variation in the multiplication of floods frequency via the hydraulic simulations. For this purpose, relying on land use/cover variation from 1987 to 2017, flow and precipitation database, we made a hydraulic simulation of the 2015 event and the 100 years recurrence inundation. As results, the land use/cover decrease is always followed by an increase in flows peak even that all recorded precipitations are more or less similar. The case study hundred years inundation prediction shows a 5.03 m increase in the river and all population near banks, agricultural land and other useful infrastructure such as roads and bridges are invaded. These results show that more catastrophic events could be reproduced and oblige the decision makers in Oued El Abid watershed to be aware of the critical situation.

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“…Flooding caused by storm events becomes a major concern in many parts of the world [3][4][5]. Most rain, precipitation duration, snowmelt, stream overflowing channels, inadequate drainage systems and the saturation of the soil are the main causes of floods [6]. In arid and semi-arid regions, rainfall usually comes for short durations but with high intensity [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Cartography of Flooding Hazard in Semi-Arid Climate: The Case of Tata Valley (South-East of Morocco)

Boutaleb¹,

Fz²,

Jáuregui³

et al. 2018

J Geogr Nat Disast

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Reliable estimates of river stream flow and flood zoning maps are needed for water resources management such as flood mitigation, water supply, dam construction and irrigation. The flood hazard caused by Tata River in the Southeast of Morocco Kingdom, is assessed using statistical modeling technique (Weibull), hydraulic modeling with HEC-RAS and the Geographic Information Systems (GIS). Four flood maps for return periods of 20, 50, 100 and 500 years are generated. For the four return periods the maximum depth of water reached by the river and extent of flooding are estimated. For 500 year return period (Q=860 m 3 /s), water average depth on the left river (Teghremt) and right one (Tata) is 2.20 m and 3.05 m, respectively. The flood hazard modeling reveals that the flooded zone is more significant out of the left (east) tributary (Teghremt) than out of the right (West) Tata river. Through lateral flood zoning maps, areas that are vulnerable to flooding hazards have been identified. This information is useful in defining the minimum height of flood protection structures such as dikes to protect the area from flooding. The results can be useful for evacuation planning, estimation of damages and post flood recovery efforts.

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Flood analysis using HEC-RAS model: a case study for Hafr Al-Batin, Saudi Arabia

Cited by 5 publications

References 7 publications

Case Study of HEC-RAS 1D–2D Coupling Simulation: 2002 Baeksan Flood Event in Korea

Case Study of HEC-RAS 1D–2D Coupling Simulation: 2002 Baeksan Flood Event in Korea

Assessing land use /cover variation effects on flood intensity via hydraulic simulations

Cartography of Flooding Hazard in Semi-Arid Climate: The Case of Tata Valley (South-East of Morocco)

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