Two Dimensional Floodplain Modeling
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Two Dimensional Floodplain Modeling
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Author : D. Michael Gee
language : en
Publisher:
Release Date : 1990
Two Dimensional Floodplain Modeling written by D. Michael Gee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Floodplain management categories.
A two-dimensional horizontal finite element numerical model (RMA-2) was applied to a 15 mile (24 km) river channel-floodplain reach in West Germany. Previous applications of such models have been restricted to much smaller scales. The results indicate that finite element schemes may successfully estimate river stage in large scale floodplain applications. Computed stage hydrographs compared well with observed data using loss coefficients within expected ranges. Two-dimensional flow models have been applied to certain classes of river channel problems. Applications have included detailed analyses of flow patterns near structures such as bridges and floodplains. In all these problems the scale of interest has been small, e.g. reaches of river a few river widths long. Many estuary studies have been done that were of large scale; some of these utilized a hybrid (numerical plus physical) modeling technique. In a review of the application of finite element methods to river channels, Samuels reported that the river channel was resolved separately from the floodplain in only two studies. Missing in previous work is attention to large scale floodplain modeling. The work reported in this paper focuses on the feasibility and accuracy of applying a two-dimensional flow model to a large floodplain. Traditional floodplain studies have used semi-empirical flow routing with steady, one-dimensional computation of water surface elevations to define inundated areas. Keywords: Army Corps of Engines. (kr).
Two Dimensional Flow Modeling
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Author : Robert C. MacArthur
language : en
Publisher:
Release Date : 1982
Two Dimensional Flow Modeling written by Robert C. MacArthur and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Fluid dynamics categories.
A Diffusion Hydrodynamic Model
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Author : Theodore V. Hromadka II
language : en
Publisher: BoD – Books on Demand
Release Date : 2020-09-09
A Diffusion Hydrodynamic Model written by Theodore V. Hromadka II and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-09-09 with Technology & Engineering categories.
The Diffusion Hydrodynamic Model (DHM), as presented in the 1987 USGS publication, was one of the first computational fluid dynamics computational programs based on the groundwater program MODFLOW, which evolved into the control volume modeling approach. Over the following decades, others developed similar computational programs that either used the methodology and approaches presented in the DHM directly or were its extensions that included additional components and capacities. Our goal is to demonstrate that the DHM, which was developed in an age preceding computer graphics/visualization tools, is as robust as any of the popular models that are currently used. We thank the USGS for their approval and permission to use the content from the earlier USGS report.
Point Cloud Data Fusion For Enhancing 2d Urban Flood Modelling
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Author : Vorawit Meesuk
language : en
Publisher: CRC Press
Release Date : 2017-07-20
Point Cloud Data Fusion For Enhancing 2d Urban Flood Modelling written by Vorawit Meesuk and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-07-20 with Science categories.
Modelling urban flood dynamics requires proper handling of a number of complex urban features. Although high-resolution topographic data can nowadays be obtained from aerial LiDAR surveys, such top-view LiDAR data still have difficulties to represent some key components of urban features. Incorrectly representing features like underpasses through buildings or apparent blockage of flow by sky trains may lead to misrepresentation of actual flood propagation, which could easily result in inadequate flood-protection measures. Hence proper handling of urban features plays an important role in enhancing urban flood modelling. This research explores present-day capabilities of using computer-based environments to merge side-view Structure-from-Motion data acquisition with top-view LiDAR data to create a novel multi-source views (MSV) topographic representation for enhancing 2D model schematizations. A new MSV topographic data environment was explored for the city of Delft and compared with the conventional top-view LiDAR approach. Based on the experience gained, the effects of different topographic descriptions were explored for 2D urban flood models of (i) Kuala Lumpur, Malaysia for the 2003 flood event; and (ii) Ayutthaya, Thailand for the 2011 flood event. It was observed that adopting the new MSV data as the basis for describing the urban topography, the numerical simulations provide a more realistic representation of complex urban flood dynamics, thus enhancing conventional approaches and revealing specific features like flood watermarks identification and helping to develop improved flood-protection measures.
Hydrology
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Author : H. M. Raghunath
language : en
Publisher: New Age International
Release Date : 2006
Hydrology written by H. M. Raghunath and has been published by New Age International this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Nature categories.
An attempt is made to place before students (degree and post-degree) and professionals in the fields of Civil and Agricultural Engineering, Geology and Earth Sciences, this important branch of Hydroscience, i.e., Hydrology. It deals with all phases of the Hydrologic cycle and related opics in a lucid style and in metric system. There is a departure from empiricism, with emphasis on collection of hydrological data, processing and analysis of data, and hydrological design on sound principles and matured judgement. Large number of hydrological design problems are worked out at the end of each article, to illustrate the principles involved and the design procedure. Problems for assignment are given at the end of each chapter, along with objective type and intelligence questions.
Hec River Analysis System Hec Ras
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Author : Gary W. Brunner
language : en
Publisher:
Release Date : 1994
Hec River Analysis System Hec Ras written by Gary W. Brunner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with HEC-RAS (Computer program) categories.
Science For Floodplain Management Into The 21st Century
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Author : Interagency Floodplain Management Review Committee (U.S.). Scientific Assessment and Strategy Team
language : en
Publisher:
Release Date : 1994
Science For Floodplain Management Into The 21st Century written by Interagency Floodplain Management Review Committee (U.S.). Scientific Assessment and Strategy Team and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Floodplain management categories.
India Climate Change Impacts Mitigation And Adaptation In Developing Countries
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Author : Md. Nazrul Islam
language : en
Publisher: Springer Nature
Release Date : 2021-05-03
India Climate Change Impacts Mitigation And Adaptation In Developing Countries written by Md. Nazrul Islam and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-03 with Science categories.
Climate change will lead to many changes in global development and security especially energy, water, food, society, job, diplomacy, culture, economy and trade. The Intergovernmental Panel on Climate Change (IPCC) defines climate change as: “Any change in climate over time, whether due to natural variability or as a result of human activity.” Global climate change has emerged as a key issue in both political and economic arenas. It is an increasingly questioned phenomenon, and progressive national governments around the world have started taking action to respond to these environmental concerns. This book discusses the issue of food and water security in India under the context of climate change. It provides information to scientists and local government to help them better understand the particularities of the local climate. It offers insight into the changes to natural ecosystems which have affected the local Indian population. Climate change is one of the biggest challenges to Indian society. It can lead to serious impacts on production, life and the environment. Higher temperatures and sea level rise can lead to flooding and cause water salinity problems which bring about negative effects on agriculture and high risks to industry and socio-economic systems in the future.
Flood Prevention And Remediation
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Author : Flávio César Borba Mascarenhas
language : en
Publisher: WIT Press
Release Date : 2011
Flood Prevention And Remediation written by Flávio César Borba Mascarenhas and has been published by WIT Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Technology & Engineering categories.
Human settlements have grown near watercourses since ancient times. Water supply, irrigation, navigation, wastewater conveyance and city defense are some of the uses that were responsible for this choice. Even floods played an important role, favoring the soil fertilization. Man-made actions, however, especially in urban watersheds, significantly modify the natural water cycle, increasing the magnitude of floods and their potential damages. Consequently, flood damages are one of the most important issues to be dealt with in the present days. Several different studies show that floods are one of the most important natural hazards, with several losses, both in terms of lives and money. Particularly in urban areas, the amplification of floods may cause important economic losses and lead to critical social risks to the cities and their population, when inundation reaches the built environment. This situation is becoming more frequent each day. Recent history shows that urbanization is an inevitable trend and, today, the most part of the world population lives in cities. It is difficult, however, to adequately manage urban flood problems, because flood risk and flood costs are not easy to quantify. Traditionally, flood risk and flood cost assessments face difficulties due to the subjective nature of these evaluations and to the inexistence of standardized methodologies.This book tries to show different techniques and approaches to help in treating flood problems. Chapters 1 and 2 show simplified mathematical modeling of floods and results of multifunctional landscape flood control measures in the city of Rio de Janeiro. The remaining book chapters present remedial works against debris after floods in Venezuela and Measures for Mitigation of Flood areas in Japan. There are also presented studies related with Flood Risk Assessment and Management in Mediterranean Basins. The final chapter shows an interesting study related to the attitudes of residents in the Tokyo Bay area toward flood hazards.
Flood Forecasting And Hydraulic Structures
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Author : P. V. Timbadiya
language : en
Publisher: Springer Nature
Release Date : 2023-08-31
Flood Forecasting And Hydraulic Structures written by P. V. Timbadiya and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-08-31 with Science categories.
This book comprises the proceedings of the 26th International Conference on Hydraulics, Water Resources and Coastal Engineering (HYDRO 2021) focusing on broad spectrum of emerging opportunities and challenges in the field of flood forecasting and hydraulic structures. It covers a range of topics, including, but not limited to, early warning system, urban flood modelling and management, dam hazard classification, river training and protection works, structural and non-structural measures for flood mitigation, assessment and development of flood vulnerability, hazard and risk maps rehabilitation of old dams, streamflow turbines, canal operation and related structure, operation and management of dams including their instrumentation etc. Presenting recent advances in the form of illustrations, tables, and text, it offers readers insights for their own research. In addition, the book addresses fundamental concepts and studies in the field of flood forecasting and hydraulic structures, making it a valuable resource for both beginners and researchers wanting to further their understanding of hydraulics, water resources and coastal engineering.