Hydraulic Modeling and Evaluation Equations for the Incipient Motion of Sandbags for Levee Breach Closure Operations

Sattar, Ahmed A.; Bonakdari, Hossein; Gharabaghi, Bahram; Radecki‐Pawlik, Artur

doi:10.3390/w11020279

Cited by 13 publications

(8 citation statements)

References 56 publications

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“…Both upstream and downstream countries can control the facilities in their region. This can prevent floods from affecting normal production and business activities (Sattar et al, 2019). In this case, the upstream region is the first mover and the downstream region is the last mover.…”

Section: Different Flood Control Modes Individual Managementmentioning

confidence: 99%

The Stackelberg game model of cross-border river flood control

Wang

Bai²,

Yang³

2022

Front. Ecol. Evol.

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In face of more and more prominent problems of cross-border river flood disasters, the upstream and downstream need to strengthen cross-border flood disaster management cooperation. The authors set up a Stackelberg game model in the three scenarios of separate management/compensation management/joint governance between upstream and downstream flooding than get the Nash equilibrium under various conditions. An empirical analysis is carried out by taking the cooperative governance among countries in the Lancang–Mekong River Basin (LMRB) as an example. The conclusion shows that when flood control in the upstream region has a greater impact on the downstream region, with the increase of flood control compensation, flood control in the upstream region gradually decreases, while flood control in the downstream region gradually increases. And when the compensation amount is greater than the adverse impact of failure 2.22 times, the flood control of the downstream area will exceed that of the upstream area. When the compensation amount is greater than the adverse impact of failure 0.74 times, the social welfare of the downstream areas under cooperative flood control is greater than the social welfare under the flood control alone.

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Section: Different Flood Control Modes Individual Managementmentioning

confidence: 99%

The Stackelberg game model of cross-border river flood control

Wang

Bai²,

Yang³

2022

Front. Ecol. Evol.

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“…However, the studies emphasize that additional studies are required for even more reliable morphodynamic investigation. Computational modeling offers an alternative for analyzing and predicting the recent and expected processes [30,31]. That is, the numerical modeling based investigation could be an important complementary manner with meaningful added value.…”

Section: Case Studymentioning

confidence: 99%

Validation of a Novel, Shear Reynolds Number Based Bed Load Transport Calculation Method for Mixed Sediments against Field Measurements

Török

Józsa

Baranya

2019

Water

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In this study, the field measurement-based validation of a novel sediment transport calculation method is presented. River sections with complex bed topography and inhomogeneous bed material composition highlight the need for an improved sediment transport calculation method. The complexity of the morphodynamic features (spatially and temporally varied bed material) can result in the simultaneous appearance of the gravel and finer sand dominated sediment transport (e.g., parallel bed armoring and siltation) at different regions within a shorter river reach. For the improvement purpose of sediment transport calculation in such complex river beds, a novel sediment transport method was elaborated. The base concept of it was the combined use of two already existing empirical sediment transport models. The method was already validated against laboratory measurements. The major goal of this study was the verification of the novel method with a real river case study. The combining of the two sediment transport models was based on the implementation of a recently presented classification method of the locally dominant sediment transport nature (gravel or sand transport dominates). The results were compared with measured bed change maps. The verification clearly referred to the meaningful improvement in the sediment transport calculation by the novel manner in the case of spatially varying bed content.

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“…In the same period, 0.16 billion fatalities occurred due to the same natural risk phenomena. Therefore, since flash-floods are extremely severe phenomena, they are also very dangerous for human life [2,3]. These phenomena appear most frequently in small river basins characterized by a high slope.…”

Section: Introductionmentioning

confidence: 99%

Integrated Framework for Detecting the Areas Prone to Flooding Generated by Flash-Floods in Small River Catchments

Costache

Bărbulescu

Pham³

2021

Water

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In the present study, the susceptibility to flash-floods and flooding was studied across the Izvorul Dorului River basin in Romania. In the first phase, three ensemble models were used to determine the susceptibility to flash-floods. These models were generated by a combination of three statistical bivariate methods, namely frequency ratio (FR), weights of evidence (WOE), and statistical index (SI), with fuzzy analytical hierarchy process (FAHP). The result obtained from the application of the FAHP-WOE model had the best performance highlighted by an Area Under Curve—Receiver Operating Characteristics Curve (AUC-ROC) value of 0.837 for the training sample and another of 0.79 for the validation sample. Furthermore, the results offered by FAHP-WOE were weighted on the river network level using the flow accumulation method, through which the valleys with a medium, high, and very high torrential susceptibility were identified. Based on these valleys’ locations, the susceptibility to floods was estimated. Thus, in the first stage, a buffer zone of 200 m was delimited around the identified valleys along which the floods could occur. Once the buffer zone was established, ten flood conditioning factors were used to determine the flood susceptibility through the analytical hierarchy process model. Approximately 25% of the total delimited area had a high and very high flood susceptibility.

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Hydraulic Modeling and Evaluation Equations for the Incipient Motion of Sandbags for Levee Breach Closure Operations

Cited by 13 publications

References 56 publications

The Stackelberg game model of cross-border river flood control

The Stackelberg game model of cross-border river flood control

Validation of a Novel, Shear Reynolds Number Based Bed Load Transport Calculation Method for Mixed Sediments against Field Measurements

Integrated Framework for Detecting the Areas Prone to Flooding Generated by Flash-Floods in Small River Catchments

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