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Development Of A Flood Warning Network And Flood Inundation Mapping For The Blanchard River In Ottawa Ohio
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Book Synopsis Development of a Flood-warning Network and Flood-inundation Mapping for the Blanchard River in Ottawa, Ohio by : Matthew T. Whitehead
Download or read book Development of a Flood-warning Network and Flood-inundation Mapping for the Blanchard River in Ottawa, Ohio written by Matthew T. Whitehead and published by . This book was released on 2011 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Blanchard River Watershed Flood Risk Management, Findlay and Ottawa, Ohio by : URS Baird
Download or read book Blanchard River Watershed Flood Risk Management, Findlay and Ottawa, Ohio written by URS Baird and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Prediction of Travel Time and Development of Flood Inundation Maps for Flood Warning System Including Ice Jam Scenario by : Niraj Lamichhane
Download or read book Prediction of Travel Time and Development of Flood Inundation Maps for Flood Warning System Including Ice Jam Scenario written by Niraj Lamichhane and published by . This book was released on 2016 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: The flood warning system can be effectively used to reduce the potential property damages and loss of lives. Therefore, a reliable flood warning system is required for the evacuation of people from probable inundation area in sufficient lead time. Hence, this study was commenced to predict the travel time and generate inundation maps along the Grand River, Ohio for various flood stages. A widely accepted hydraulic tool, Hydraulic Engineering Center River Analysis System (HEC-RAS), was used to perform the hydraulic simulation. HEC-GeoRAS, an ArcGIS extension tool, was used to prepare geospatial data and generate flood inundation maps for various flood stages. A topographic survey was conducted to obtain the accurate elevation of river channels. The hydraulic simulations were carried out using six different elevation datasets and various ranges of Manning's roughness to quantify the uncertainties in travel time and inundation area prediction due to the resolutions of the elevation datasets and Manning's roughness. The study showed that the coarse elevation dataset, which was 30m Digital Elevation Model (DEM) without integration of survey data, provided higher travel time and inundation area. It over predicted (11.03%-15.01%) in travel time and inundation area (32.56%-44.52%) for various return period floods when compared with the results of Light Detection and Ranging (LiDAR) integrated with survey data. Moreover, Manning's roughness was found to be more sensitive in channel sections than that of floodplains. The decrease in travel time and inundation area was observed with the decrease in Manning's roughness. The highest decrement of 21.38% and 8.97% in travel time and inundation area was observed when roughness value was decreased in channel sections, while the decrement in travel time and inundation area was 3.45% and 1.49% when roughness value was decreased in floodplains. The difference in predicted travel time and inundation area, while using LiDAR integrated with survey data, was not considerably different from 10m DEM integrated with survey data. However, LiDAR with survey data predicted conservative travel time which would be safe to consider for the evacuation planning from probable inundation areas. Therefore, LiDAR integrated with survey data was used for the calculation of travel time and generation of flood inundation maps for 12 different selected flood stages. The estimated travel time can be used for the evacuation of the people. Similarly, the rating curve and the flood inundation maps can be used to issue flood warning. More than 100 houses, many roads, bridges and parks along the Grand River are susceptible to 500 year return period flood. Therefore, it is suggested to install the siren system in various locations of the river. In addition, winter flooding due to ice jams is one of the major problems as it has caused severe damages along the Grand River and nearby bridge structures frequently. Therefore, the effects of ice cover and ice jams on the river level near bridges were investigated. The increase in river stage and inundation area was observed, when ice cover and ice jam was considered in the simulation. The average increase in river stage was approximately 2 ft for maximum winter discharge. Likewise, the increase in inundation area varied from 24% to 52% for various winter flows resulting in the highest increment for the lowest winter discharge. In addition, the increase in river stage was noticed at the upstream section of bridges during winter when the model was simulated considering bridges. The effects of resolution of elevation datasets and ice jam/ice cover in flood travel time and inundations maps would be valuable assets for decision makers and planners for flood management and rescue operation in future.
Author :United States. Congress. House. Committee on Appropriations. Subcommittee on Interior, Environment, and Related Agencies Publisher : ISBN 13 : Total Pages :880 pages Book Rating :4.3/5 ( download)
Book Synopsis Interior, Environment, and Related Agencies Appropriations for 2014 by : United States. Congress. House. Committee on Appropriations. Subcommittee on Interior, Environment, and Related Agencies
Download or read book Interior, Environment, and Related Agencies Appropriations for 2014 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Interior, Environment, and Related Agencies and published by . This book was released on 2013 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a Flood-inundation Map Library and Precipitation-runoff Modeling for the Clear Fork Mohican River in and Near Bellville, Ohio by : Chad J. Ostheimer
Download or read book Development of a Flood-inundation Map Library and Precipitation-runoff Modeling for the Clear Fork Mohican River in and Near Bellville, Ohio written by Chad J. Ostheimer and published by . This book was released on 2019 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flood Inundation Maps and Updated Components for a Flood-warning System for the City of Marietta, Ohio and Selected Communities Along the Lower Muskingum River and Ohio River by : Matthew T. Whitehead
Download or read book Flood Inundation Maps and Updated Components for a Flood-warning System for the City of Marietta, Ohio and Selected Communities Along the Lower Muskingum River and Ohio River written by Matthew T. Whitehead and published by . This book was released on 2012 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reducing Damage from Localized Flooding by : United States. Federal Emergency Management Agency
Download or read book Reducing Damage from Localized Flooding written by United States. Federal Emergency Management Agency and published by . This book was released on 2005 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flood Hazard Mapping: Uncertainty and its Value in the Decision-making Process by : Micah Mukungu Mukolwe
Download or read book Flood Hazard Mapping: Uncertainty and its Value in the Decision-making Process written by Micah Mukungu Mukolwe and published by CRC Press. This book was released on 2017-03-16 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computers are increasingly used in the simulation of natural phenomena such as floods. However, these simulations are based on numerical approximations of equations formalizing our conceptual understanding of flood flows. Thus, model results are intrinsically subject to uncertainty and the use of probabilistic approaches seems more appropriate. Uncertain, probabilistic floodplain maps are widely used in the scientific domain, but still not sufficiently exploited to support the development of flood mitigation strategies. In this thesis the major sources of uncertainty in flood inundation models are analyzed, resulting in the generation of probabilistic floodplain maps. The utility of probabilistic model output is assessed using value of information and the prospect theory. The use of these maps to support decision making in terms of floodplain development under flood hazard threat is demonstrated.
Book Synopsis Updating Flood Maps Efficiently Using Existing Hydraulic Models, Very-high-accuracy Elevation Data, and a Geographic Information System by : Joseph L. Jones
Download or read book Updating Flood Maps Efficiently Using Existing Hydraulic Models, Very-high-accuracy Elevation Data, and a Geographic Information System written by Joseph L. Jones and published by . This book was released on 2001 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development and Application of a Spatial Database for Emergency Management Operations: 1993 Midwest Flood by :
Download or read book Development and Application of a Spatial Database for Emergency Management Operations: 1993 Midwest Flood written by and published by DIANE Publishing. This book was released on with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Continuous Hydrologic Simulation and Flood-frequency, Hydraulic, and Flood-hazard Analysis of the Blackberry Creek Watershed, Kane County, Illinois by : David Ta-Wei Soong
Download or read book Continuous Hydrologic Simulation and Flood-frequency, Hydraulic, and Flood-hazard Analysis of the Blackberry Creek Watershed, Kane County, Illinois written by David Ta-Wei Soong and published by . This book was released on 2004 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis LiDARderived floodinundation maps for realtime floodmapping applications, Tar River Basin, North Carolina by :
Download or read book LiDARderived floodinundation maps for realtime floodmapping applications, Tar River Basin, North Carolina written by and published by DIANE Publishing. This book was released on with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Real-time Flood Forecasting and Flood Inundation Mapping System for the Lake Champ̂lain-Richelieu River Watershed by :
Download or read book A Real-time Flood Forecasting and Flood Inundation Mapping System for the Lake Champ̂lain-Richelieu River Watershed written by and published by . This book was released on 2015 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Assessment, Improvement, and Application of the GeoFlood Flood Inundation Mapping Framework by : Alec Carruthers
Download or read book The Assessment, Improvement, and Application of the GeoFlood Flood Inundation Mapping Framework written by Alec Carruthers and published by . This book was released on 2020 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: GeoFlood is a flood inundation mapping package that utilizes a geodesic, cost minimization algorithm to extract channel networks from high resolution terrain data along with National Water Model forecasts and a Height Above Nearest Drainage approach to create near real time flood inundation maps. Earlier work has applied the GeoFlood framework at the scale of a single Hydrologic Unit Code 12 watershed, but this work extended the application to seven counties across the state of Texas. One meter resolution lidar digital elevation models were generated for each county and segmented by watershed, resulting in approximately 400 gigabytes of input data. Two cost functions were found to improve the channel network extraction capabilities. The unique aspect of the first cost function was the inclusion of a cost threshold, which served to increase the penalty for pixels that had a cost above a given limit, thereby restricting the extracted channel to only the minimum cost path and preventing shortcuts. A second cost function, featuring a binary representation of the National Hydrography Data high resolution flowlines, was used to improve the performance of the threshold based cost function in the presence of artificial features or within low relief topography. Four variations of a channel bed slope calculation were tested, two that were end point based and two that utilized a linear regression. The end point based methods were shown to have synthetic rating curves with a smaller percent error and variance across the first three meters of stage height, as well as less area separation from the corresponding United States Geological Survey synthetic rating curves than the regression based methods. Identification of the reaches in which the slope calculation method was most significant was conducted by analyzing the variance and standard deviation across the four computed slopes. Artificial and canal reaches at a low level (1 - 2) and high stream order (5 - 7) were found to have the most variance across their computed slopes. A reach being hydro-flattened was determined to most likely not be the sole limiting factor when it comes to the accuracy of GeoFlood derived products. An approximately equal number of low and high error synthetic rating curves were produced from hydro-flattened reaches. While improvement to the model can always be made, the application of GeoFlood across seven counties in Texas, using high resolution terrain data, was a step forward in regard to showing that GeoFlood can be applied to larger study areas than just a single watershed, including the potential for statewide and or national implementation
Book Synopsis Guidelines for Developing Comprehensive Flood Warning by : Arizona Floodplain Management Association. Flood Warning Committee
Download or read book Guidelines for Developing Comprehensive Flood Warning written by Arizona Floodplain Management Association. Flood Warning Committee and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Frontiers in Flood Research by : Ioulia Tchiguirinskaia
Download or read book Frontiers in Flood Research written by Ioulia Tchiguirinskaia and published by . This book was released on 2006 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Changes in Flood Response of the Red River of the North Basin, North Dakota-Minnesota by : Jeffrey E. Miller
Download or read book Changes in Flood Response of the Red River of the North Basin, North Dakota-Minnesota written by Jeffrey E. Miller and published by . This book was released on 1984 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
