Levees, Diversion Canals or Flood Expansion Areas?

Tourment, Rémy; Beullac, Bruno; Degoutte, Gérard; Patouillard, Sébastien; Maurin, J.

doi:10.1051/e3sconf/20160712007

Cited by 6 publications

(6 citation statements)

References 7 publications

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“…• Dams and levees (dikes) are useful in flood risk reduction and are complementary: they do not have the same hydraulic function and impact, and also not the same limits [14]. • This type of ambitious project requires long period for planning and implementation.…”

Section: Discussionmentioning

confidence: 99%

Odra River Basin Flood Protection Project - implementation of the flood risk management plan

Zaleski¹,

Tourment²,

Trak³

2021

Science and Practice for an Uncertain Future

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to name a few. In response to the floods in the Odra River basin, the states located within the catchment: the Czech Republic, Poland, and Germany agreed upon a common strategy and action plan in order to enhance flood safety, undertaking to implement this plan under their respective national action plans. In 2001, Poland's government and Parliament established a multi-objective strategy for the Odra catchment (Programme for the Odra River -2006), whose main priority was flood protection. The implementation of the programme was scheduled for years 2002-2016 and the main implementation tool was the project established with support of the World Bank and the Council of Europe Development Bank, called the Odra River Basin Flood Protection Project with financing of 800 million euros. The Project was completed in 2020 because of certain delays in implementation. The paper will describe the content and implementation of the project that included active and passive protection measures. An International Panel of Experts (IPE) provided support for the implementation of the project by issuing reports and recommendations concerning all major technical problems that occurred during the design and construction of the polders. The paper will conclude with lessons learnt and comments on further development concerning the new Odra-Vistula Flood Management Project.

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Section: Discussionmentioning

confidence: 99%

Odra River Basin Flood Protection Project - implementation of the flood risk management plan

Zaleski¹,

Tourment²,

Trak³

2021

Science and Practice for an Uncertain Future

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show abstract

“…Excess water from retention areas will move toward the destination when the storage capacity of the retention areas becomes full. These retention areas or ponds store water temporarily to reduce the flood peak; thus, they extend flow duration (Tourment et al, 2016). At the end of each year, retention storage is assumed to evaporate (E) fully, and retention storage at the beginning of the following year is assumed to be zero.…”

Section: H08 Model Enhancement For Flood Diversion Canalsmentioning

confidence: 99%

Inclusion of flood diversion canal operation in the H08 hydrological model with a case study from the Chao Phraya River basin: model development and validation

Gopalan

Champathong

Sukhapunnaphan

et al. 2022

Hydrol. Earth Syst. Sci.

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Abstract. Water diversion systems play crucial roles in assuaging flood risk by diverting and redistributing water within and among basins. For flood and drought assessments, including investigations of the effects of diversion systems on river discharge worldwide, the explicit inclusion of these systems into global hydrological models (GHMs) is essential. However, such representation remains in the pioneering stage because of complex canal operations and insufficient data. Therefore, we developed a regionalized canal operation scheme and implemented it in the H08 GHM for flood diversion in the Chao Phraya River basin (CPRB), Thailand, which is a complex river network with several natural and artificial diversion canals and has been subject to severe flooding in the past, including recent years. Region-specific validation results revealed that the enhanced H08 model with the regionalized diversion scheme could effectively simulate the observed flood diversion pattern in the CPRB. Diverted water comprises approximately 49 % of the annual average river discharge in the CPRB. The simulations further confirmed that the presented canal scheme had the potential to reduce flood risk in the basin by significantly reducing the number of flooding days. A generalized canal scheme with simple input data settings was also constructed for future global applications, providing insights into the maximum level of discharge reduction achievable with diversion of nearly 57 % of the annual average river discharge of the CPRB. Overall, the enhanced H08 model with canal schemes can be adapted and applied to different contexts and regions, accounting for the characteristics of each river network by maintaining the basic principles unaltered.

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“…Excess water from retention areas will move toward the destination when the storage capacity of the retention areas becomes full. These retention areas or ponds store water temporarily to reduce the flood peak; thus, they extend flow duration (Tourment et al, 2016). At the end of each year, retention storage is assumed to evaporate (𝐸) fully and retention storage at the beginning of the following year is assumed to be zero.…”

Section: H08 Model Enhancement For Flood Diversion Canalsmentioning

confidence: 99%

Inclusion of flood diversion canal operation in the H08 hydrological model with a case study from the Chao Phraya River Basin – Part 1: Model development and validation

Gopalan

Champathong

Sukhapunnaphan

et al. 2021

Preprint

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Abstract. Water diversion systems play crucial roles in assuaging flood risk by diverting and redistributing water within and among basins. For flood and drought assessments, including investigations of the effects of diversion systems on river discharge worldwide, the explicit inclusion of these systems into global hydrological models (GHMs) is essential. However, such representation remains in the pioneering stage because of complex canal operations and insufficient data. Therefore, we developed a regionalized canal operation scheme and implemented it in the H08 GHM for flood diversion in the Chao Phraya River Basin (CPRB), Thailand, which is a complex river network with several natural and man-made diversion canals and has been subject to severe flooding in the past, including recent years. Region-specific validation results revealed that the enhanced H08 model with the regionalized diversion scheme could effectively simulate the observed flood diversion pattern in the CPRB. Diverted water comprises approximately 49 % of the annual average river discharge in the CPRB. The simulations further confirmed that the presented canal scheme had the potential to reduce flood risk in the basin by significantly reducing the number of flooding days. A generalized canal scheme with simple input data settings was also constructed for future global applications, providing insights into the maximum level of discharge reduction achievable with diversion of nearly 57 % of the annual average river discharge of the CPRB. Overall, the enhanced H08 model with canal schemes can be adapted and applied to different contexts and regions, accounting for the characteristics of each river network by maintaining the basic principles unaltered.

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Levees, Diversion Canals or Flood Expansion Areas?

Cited by 6 publications

References 7 publications

Odra River Basin Flood Protection Project - implementation of the flood risk management plan

Odra River Basin Flood Protection Project - implementation of the flood risk management plan

Inclusion of flood diversion canal operation in the H08 hydrological model with a case study from the Chao Phraya River basin: model development and validation

Inclusion of flood diversion canal operation in the H08 hydrological model with a case study from the Chao Phraya River Basin – Part 1: Model development and validation

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