scholarly journals PROPOSAL OF TWO DIMENSIONAL FLOOD ROUTING METHOD

1996 ◽  
Vol 40 ◽  
pp. 413-418
Author(s):  
Ki Ho PARK ◽  
Muneo HIRANO
Keyword(s):  
Flood Routing ◽  
Two Dimensional ◽  
Routing Method

scholarly journals Improving the Muskingum Flood Routing Method Using a Hybrid of Particle Swarm Optimization and Bat Algorithm

Water ◽  
2018 ◽  
Vol 10 (6) ◽  
pp. 807 ◽  
Author(s):  
Mohammad Ehteram ◽  
Faridah Binti Othman ◽  
Zaher Mundher Yaseen ◽  
Haitham Abdulmohsin Afan ◽  
Mohammed Falah Allawi ◽  
...  
Keyword(s):  
Particle Swarm Optimization ◽  
Particle Swarm ◽  
Bat Algorithm ◽  
Flood Routing ◽  
Swarm Optimization ◽  
Routing Method

scholarly journals Assessment of Discharge and Sediment Flows in a River Through a Combined Hydraulic and Hydrologic Routing Technique

2021 ◽  
Author(s):  
Abebe Tadesse Bulti
Keyword(s):  
Regression Model ◽  
River Basin ◽  
Swat Model ◽  
Model Performance ◽  
Simulation Models ◽  
Flood Routing ◽  
Recent Approach ◽  
Routing Method ◽  
Routing Techniques ◽  
Routing Methods

Abstract An advancement on flood routing techniques is important for a good perdiction and forecast of the flow discharge in a river basins. Hydraulic and hydrologic routing techniques are widely applied in most simulation models separately. A combined hydrologic and hydraulic routing method is a recent approach that used to improve the modeling effort in hydrological studies. The main drawback of hydrologic routing methods was inaccuracy on downstream areas of the river basin, where the effect of hydraulic structures and the river dynamics processes are dominant. The hydraulic routing approaches are relatively good on a downstream reaches of a river. This research was done on the Awash River basin, at the upstream areas of a Koka dam. A combined hydrologic and hydraulic approach was used to assess the discharge and sediment flow in the river basin. The hydrologic routing method was applied at an upstream part of a river basin through a SWAT model. HEC-RAS model was applied at the middle and downstream areas of the study basin based on hydraulic routing principle. A combined routing method can improve the result from a simulation process and increases an accuracy on a prediction of the peak flow. It can simulate a flow discharges for both short and long-term duration, with good model performance indicators. Besides, sediment modeling was done by comparing a regression model, SWAT model, and combination of HEC-RAS and SWAT model. The result from the sediment modeling indicates that the regression model and combined model show good agreement in predicting the suspended sediment in the river basin. The integrated application of such different type of models can be one of the option for sediment modeling.

Dissimilarity Mesh Size Assessment for Two Dimensional Flood Routing Model

2019 ◽  
pp. 245-255
Author(s):  
W. H. Azad ◽  
Lariyah Mohd Sidek ◽  
H. Basri ◽  
A. J. Hassan
Keyword(s):  
Mesh Size ◽  
Flood Routing ◽  
Two Dimensional

Lateral Inflow Approximation for Flood Forecasting in Mekong River

2014 ◽  
Vol 931-932 ◽  
pp. 797-802
Author(s):  
Natchaya Khetkratok ◽  
Supasit Konyai
Keyword(s):  
Extreme Events ◽  
Rainy Season ◽  
Flood Forecasting ◽  
Flood Routing ◽  
Mekong River ◽  
Monitoring Site ◽  
Forecasting Method ◽  
Extreme Flood ◽  
Lateral Inflow ◽  
Routing Method

The Lower Mekong River overflows regularly in rainy season which benefits the area in terms of agriculture and fishery. A critical extreme flood, however, can occur once in a while which can be catastrophic. Therefore, the ability to accurately predict extreme events using a simple but accurate flood forecasting method is crucial. The Muskingum flood routing method with average lateral inflow was used for the Lower Mekong River at Chiang Khan as monitoring site and Nong Khai as target site. Five historic flood hydrographs were used for lateral inflow evaluation. Another 4 were used for forecast testing. The results are very encouraging.

A Numerical Model for Two-Dimensional Flood Routing in Complex Terrains

2014 ◽  
Vol 28 (5) ◽  
pp. 1277-1291 ◽  
Author(s):  
George Tsakiris ◽  
Vasilis Bellos
Keyword(s):  
Numerical Model ◽  
Flood Routing ◽  
Two Dimensional

scholarly journals Variational assimilation of remotely sensed flood extents using a two-dimensional flood model

2013 ◽  
Vol 10 (8) ◽  
pp. 11185-11220
Author(s):  
X. Lai ◽  
Q. Liang ◽  
H. Yesou
Keyword(s):  
Data Assimilation ◽  
Satellite Imagery ◽  
Numerical Experiments ◽  
Remotely Sensed ◽  
Flood Routing ◽  
Two Dimensional ◽  
Remotely Sensed Data ◽  
Variational Assimilation ◽  
Flood Model ◽  
The Rich

Abstract. A variational data assimilation (4D-Var) method is proposed to directly assimilate flood extents into a two-dimensional (2-D) dynamic flood model, to explore a novel way of utilizing the rich source of remotely sensed data available from satellite imagery for better analyzing or predicting flood routing processes. For this purpose, a new cost function is specially defined to effectively fuse the hydraulic information that is implicitly indicated in flood extents. The potential of using remotely-sensed flood extents for improving the analysis of flood routing processes is demonstrated by applying the present new data assimilation approach to both idealized and realistic numerical experiments.

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