Estimating the combined effect of flood mitigation measures

2014 ◽  
pp. 1889-1895
Author(s):  
F Huthoff ◽  
J Udo ◽  
H Barneveld ◽  
M Bakker ◽  
N Asselman
Keyword(s):  
Combined Effect ◽  
Flood Mitigation ◽  
Mitigation Measures

scholarly journals A Conflict between Traditional Flood Measures and Maintaining River Ecosystems? A Case Study Based upon the River Lærdal, Norway

Water ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 1884
Author(s):  
Ana Juárez ◽  
Knut Alfredsen ◽  
Morten Stickler ◽  
Ana Adeva-Bustos ◽  
Rodrigo Suárez ◽  
...  
Keyword(s):  
Remote Sensing Data ◽  
Freshwater Ecosystems ◽  
River Channel ◽  
Flood Mitigation ◽  
Mitigation Measures ◽  
Flood Events ◽  
Protection Measures ◽  
River Ecosystems ◽  
Hydraulic Models

Floods are among the most damaging of natural disasters, and flood events are expected to increase in magnitude and frequency with the effects of climate change and changes in land use. As a consequence, much focus has been placed on the engineering of structural flood mitigation measures in rivers. Traditional flood protection measures, such as levees and dredging of the river channel, threaten floodplains and river ecosystems, but during the last decade, sustainable reconciliation of freshwater ecosystems has increased. However, we still find many areas where these traditional measures are proposed, and it is challenging to find tools for evaluation of different measures and quantification of the possible impacts. In this paper, we focus on the river Lærdal in Norway to (i) present the dilemma between traditional flood measures and maintaining river ecosystems and (ii) quantify the efficiency and impact of different solutions based on 2D hydraulic models, remote sensing data, economics, and landscape metrics. Our results show that flood measures may be in serious conflict with environmental protection and legislation to preserve biodiversity and key nature types.

Methodology for holistic assessment of grey-green flood mitigation measures for climate change adaptation in urban basins

2021 ◽  
Vol 603 ◽  
pp. 126885
Author(s):  
Ioannis M. Kourtis ◽  
Vasilis Bellos ◽  
George Kopsiaftis ◽  
Basil Psiloglou ◽  
Vassilios A. Tsihrintzis
Keyword(s):  
Climate Change ◽  
Climate Change Adaptation ◽  
Flood Mitigation ◽  
Mitigation Measures ◽  
Holistic Assessment

scholarly journals Municipal Employee's Awareness of Flood Risks and Flood Mitigation Measures

2004 ◽  
Vol 21 ◽  
pp. 335-340
Author(s):  
Kiyomine TERUMOTO ◽  
Teruko SATO ◽  
Teniki FUKUZONO ◽  
Saburo IKEDA
Keyword(s):  
Flood Mitigation ◽  
Mitigation Measures ◽  
Flood Risks

scholarly journals Willingness of residents to invest in flood mitigation measures and to purchase flood insurance

2016 ◽  
Vol 7 ◽  
pp. 22001 ◽  
Author(s):  
Sari Väisänen ◽  
Virpi Lehtoranta ◽  
Antti Parjanne ◽  
Anne-Mari Rytkönen ◽  
Juha Aaltonen
Keyword(s):  
Flood Mitigation ◽  
Mitigation Measures ◽  
Flood Insurance

scholarly journals Planning Nature-Based Solutions for Urban Flood Reduction and Thermal Comfort Enhancement

2019 ◽  
Vol 11 (22) ◽  
pp. 6361 ◽  
Author(s):  
Majidi ◽  
Vojinovic ◽  
Alves ◽  
Weesakul ◽  
Sanchez ◽  
...  
Keyword(s):  
Heat Stress ◽  
Thermal Comfort ◽  
Risk Reduction ◽  
Flood Risk ◽  
Field Measurements ◽  
Flood Mitigation ◽  
Mitigation Measures ◽  
Small Scale ◽  
Urban Flood ◽  
Flood Risk Reduction

As a consequence of climate change and urbanization, many cities will have to deal with more flooding and extreme heat stress. This paper presents a framework to maximize the effectiveness of Nature-Based Solutions (NBS) for flood risk reduction and thermal comfort enhancement. The framework involves an assessment of hazards with the use of models and field measurements. It also detects suitable implementation sites for NBS and quantifies their effectiveness for thermal comfort enhancement and flood risk reduction. The framework was applied in a densely urbanized study area, for which different small-scale urban NBS and their potential locations for implementation were assessed. The overall results show that the most effective performance in terms of flood mitigation and thermal comfort enhancement is likely achieved by applying a range of different measures at different locations. Therefore, the work presented here shows the potential of the framework to achieve an effective combination of measures and their locations, which was demonstrated on the case of the Sukhumvit area in Bangkok (Thailand). This can be particularly suitable for assessing and planning flood mitigation measures in combination with heat stress reduction.

Analisa Kapasitas Penampang Sungai Kali Gunting Di Kabupaten Jombang

2018 ◽  
Vol 9 (2) ◽  
pp. 80-85
Author(s):  
Saiful Arfaah ◽  
Iswinarti
Keyword(s):  
Water Level ◽  
River Water ◽  
Cross Section ◽  
Return Period ◽  
Flood Mitigation ◽  
Mitigation Measures ◽  
Flood Water ◽  
Flow Parameters ◽  
Flood Discharge ◽  
Level Profile

The cause of flooding in the watershed area, one of which is caused by the inability of the river profile to accommodate the existing discharge (overflow). This research is intended to examine flood discharge and flood water level profile of Kali Gunting as a first step to determine flood mitigation solutions. Analysis of flood water level profiles using the Hec-Race 4.0 modeling program. With the help of this program, it is expected to be able to accommodate the flow parameters that are so complex. After modeling and knowing the capabilities of each part (cross section), this result will be a technical reference in determining flood mitigation measures. From the results of the study, the analysis of the potential for flooding in the scissor area was obtained as a result of the flood discharge capacity at scissors times = 301.00m3 / dt, and the emission times = 136.66m3 / dt for the 50th return period. The results of the Q50th calculation show that the condition of K. Scissors P0-P36 river water overflows / floods because the flood water level is above the eksesting embankment, while P36-P46 does not overflow / does not flood because the flood water level is below the eksesting dike. K. Panir condition P0-P48 river water overflows / floods because the flood water level is above the eksesting embankment, while P48-P60 does not overflow / does not flood because the flood water level is below the eksesting embankment

Local People’s Responses to Flood Disasters in Flood Prone Areas of Northeast Bangladesh

2015 ◽  
Vol 10 (2) ◽  
pp. 288-298 ◽  
Author(s):  
Naoki Yamashita ◽  
◽  
Terunori Ohmoto ◽  
Keyword(s):  
Flood Mitigation ◽  
Mitigation Measures ◽  
Agricultural Fields ◽  
Flood Inundation ◽  
Inundation Depth ◽  
Flood Disasters ◽  
The Status ◽  
Similarities And Differences ◽  
Flood Prone Areas ◽  
Selection Of

In the flood prone areas of Bangladesh, local people have adapted to flooding. Essentially, properties are protected against flooding by constructing villages in the highlands on natural levees, while using lowlands as agricultural fields during the dry season. It remains to spread flood inundation condition and exempts the necessity of strengthening measures against flooding. This study aims to clarify the status of self, community, and public assistance for flood disasters in flood prone areas of Northeast Bangladesh based on a questionnaire survey. We extracted similarities and differences between local people’s flood responses by comparing our findings to those of a similar study on a 2006 flood in the Sendai River Basin, Japan. The effects of preventive flood mitigation measures such as selection of house location are quantitatively confirmed. Maximum inundation depth and duration for houses is approximately 10% less than that for agricultural fields. The study reveals that both areas have evacuation activities, although factors motivating evacuation differ.

scholarly journals Flood Mitigation Techniques—A New Perspective for the Case Study of Adayar Watershed

2017 ◽  
Author(s):  
Vidyapriya V. ◽  
Ramalingam M.
Keyword(s):  
Drainage System ◽  
Flood Mitigation ◽  
Storm Water ◽  
Mitigation Measures ◽  
Complex Nature ◽  
Adjacent Area ◽  
Drainage Network ◽  
Flood Events ◽  
Water Drainage ◽  
Impervious Area

Mostly populous city like Chennai is subjected to frequent flooding due to its complex nature of natural and man-made activities. From the analysis of the past records of flood events of 1943,1976,1985,2005 and 2008,it has been observed Adayar watershed is subjected to cataclysmic flooding in low-lying areas of the city and its suburbs because of inoperativeness of the local drainage system, rainfall associated with cyclonic activity, topography of the terrain, encroachments along the floodplain, hugh upstream flow discharge into the river and the highly impervious area which blocked the runoff to flow into the storm water drainage. After looking into these problems of flooding, a study have been conducted on Adayar watershed to develop a 2D hydrodynamic model for the two scenarios of existing condition of storm water drainage network and revised conditions of storm water drainage network using high resolution Lidar DEM to assess the volume of runoff with respect to time and duration on flood peaks for the two flood events of 2005 and 2015.Secondly to develop a 1D flood model to predict the river stages during peak floods using MIKE 11 for the Adayar watershed. Thirdly to integrate the coupled 1D and 2D model using MIKEFLOOD for assessing the extent of inundation in the floodplain area of Adayar river. Finally results from the integrated model have been validated and the results found satisfactory. As a part of mitigation measures, two flood mitigation measures have been adopted. One measure such as revised storm water drainage system which enhances the flood carrying capacity of the drains and results in less inundated area which solves the problem of urban flooding and second measure such as regrading the river bed which reduces the floodplain inundation around the adjacent area of the river. After adopting these measures, the river is free to flow into the sea without any blockades.

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