Flood occurrence hazard forecasting based on geographical information system

Solaimani, Karim; Mohammadi, Hosein; Ahmadi, Mahdi; Habibnejad, M.

doi:10.1007/bf03325884

Cited by 10 publications

(11 citation statements)

References 2 publications

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“…These were first applied and then cross-validated using data for three study reaches: the Brazos River in Texas, the Kootenai River in Montana, and Strouds Creek in North Carolina. Solaimani (2009) integrated GIS and HEC-RAS to use hydraulic analysis to separate the high-and low-risk areas on the floodplain. The results from HEC-RAS were displayed using GIS.…”

Section: Introductionmentioning

confidence: 99%

Application of a rainfall-runoff model for regional-scale flood inundation mapping for the Langat River Basin

Mirzaei

Faghih

Ying

et al. 2016

Water Practice and Technology

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Rapid growth in recent decades has changed engineering concepts about the approach to controlling storm water in cities. Over the past years flood events have occurred more frequently in several countries in the tropics. In this study the behavior of Langat River in Malaysia was analyzed using the hydrodynamic modeling software (HEC-RAS) developed by the 'Hydrologic Engineering Center, U.S. Army Corps of Engineers', to simulate different water levels and flow rates corresponding to different return periods from the available database. The aim was to forecast peak flows, based on rainfall data and the maximum rate of precipitation in different return periods in storms of different duration. The maximum flows were obtained from the Automated Geospatial Watershed Assessment tool for the different return periods, and the peak flows from extreme rainfall were applied to HEC-RAS to simulate different water levels and flow rates corresponding to different return periods. The water level along the river and its tributaries could then be analyzed for different flow conditions.

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Section: Introductionmentioning

confidence: 99%

Application of a rainfall-runoff model for regional-scale flood inundation mapping for the Langat River Basin

Mirzaei

Faghih

Ying

et al. 2016

Water Practice and Technology

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show abstract

“…Risk management plans can implement this information to determine what precautions should be taken where. As the climate shifts, however, flood studies become increasingly important [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Kalibre edilmiş ve doğrulanmış 1D ve 1D/2D model kullanılarak Cedar Nehri taşkın yayılım alanlarının tespiti

Sönmez¹,

Doğan²

2016

SAUFenBilDer

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In 2008 flooding occurred over a majority of Iowa, damaging homes, displacing residents, and taking lives. Estimated damages to the state totaled $10 billion. One of the city affected by the flood was Waverly City, USA which is the Cedar River flow in side of it. One-dimensional/two-dimensional (1D/2D)-Mike Flood hydrodynamic model and 1D-HecRAS hydraulic model were developed for flood analyses in Waverly City. For developing both models, channel geometry was obtained from bathymetric surveys and combined with surface topography obtained from Light Detection and Ranging surveys. Roughness parameters were estimated using land use data from the National Land Cover Dataset and aerial photos. Calibration of roughness on floodplain and channels represents an important issue to determine flood inundation area. Both models were calibrated and validated with 2008 flood. The riverbed was validated with high water levels measured after flood. The floodplain was validated with photos, which was taken during flood from airplane. After calibration and validation, results were compared to choose the best one. Return period flood discharge were calculated and run with best inundation model for determine flood inundation maps. These maps can be used by residents and planners in Waverly City to help make informed decisions about potential risk from floods. Elde edilen taşkın yayılım haritaları ile Waverly şehir plancılarının ve sakinlerinin potansiyel taşkın riskini bilerek buna göre kararlar almaları konusunda yardımcı olacağı düşünülmektedir.

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“…Through a combination of the GIS extension, HEC-GeoRAS and HEC-RAS, engineers can use an available DEM to build the geometric file for a HEC-RAS model. Additionally, the GeoRAS extension has simple import and export capabilities to smooth the transition between creating the geometric file, running the model and displaying the results in GIS platform [SOLAIMANI 2009].…”

Section: Introductionmentioning

confidence: 99%

A GIS based approach for the prediction of the dam break flood hazard – A case study of Zardezas reservoir “Skikda, Algeria”

Derdous¹,

Djemili²,

Bouchehed³

et al. 2015

Journal of Water and Land Development

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The construction of dams in rivers can offer many advantages, however the consequences resulting from their failure could result in major damage, including loss of life and property destruction. To mitigate the threats of dam break it is essential to appreciate the characteristics of the potential flood in realistic manner. In this study an approach based on the integration of hydraulic modelling and GIS has been used to assess the risks resulting from a potential failure of Zardezas dam, a concrete dam located in Skikda, in the North East of Algeria. HEC-GeoRAS within GIS was used to extract geometric information from a digital elevation model and then imported into HEC-RAS. Flow simulation of the dam break was performed using HEC-RAS and results were mapped using the GIS. Finally, a flood hazard map based on water depth and flow velocity maps was created in GIS environment. According to this map the potential failure of Zardezas dam will place a large number in people in danger. The present study has shown that Application of Geographical Information System (GIS) techniques in integration with hydraulic modelling can significantly reduce the time and the resources required to forecast potential dam break flood hazard which can play a crucial role in improving both flood disaster management and land use planning downstream of dams.

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Flood occurrence hazard forecasting based on geographical information system

Cited by 10 publications

References 2 publications

Application of a rainfall-runoff model for regional-scale flood inundation mapping for the Langat River Basin

Application of a rainfall-runoff model for regional-scale flood inundation mapping for the Langat River Basin

Kalibre edilmiş ve doğrulanmış 1D ve 1D/2D model kullanılarak Cedar Nehri taşkın yayılım alanlarının tespiti

A GIS based approach for the prediction of the dam break flood hazard – A case study of Zardezas reservoir “Skikda, Algeria”

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