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Comparison Of Some Variable Parameter Simplified Hydraulic Flood Routing Models
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Book Synopsis Comparison of flume and towing methods for verifying the calibration of a suspended-sediment sampler by : Joseph P. Beverage
Download or read book Comparison of flume and towing methods for verifying the calibration of a suspended-sediment sampler written by Joseph P. Beverage and published by . This book was released on 1986 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flood Routing in Ungauged Catchments Using Muskingum Methods by : Mesfin H. Tewolde
Download or read book Flood Routing in Ungauged Catchments Using Muskingum Methods written by Mesfin H. Tewolde and published by Universal-Publishers. This book was released on 2008-03-27 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: River stage or flow rates are required for the design and evaluation of hydraulic structures. Most river reaches are ungauged and a methodology is needed to estimate the stages, or rates of flow, at specific locations in streams where no measurements are available. Flood routing techniques are utilised to estimate the stages, or rates of flow, in order to predict flood wave propagation along river reaches. Models can be developed for gauged catchments and their parameters related to physical characteristics such as slope, reach width, reach length so that the approach can be applied to ungauged catchments in the region. The objective of this study is to assess Muskingum-based methods for flow routing in ungauged river reaches, both with and without lateral inflows. Using observed data, the model parameters were calibrated to assess performance of the Muskingum flood routing procedures and the Muskingum-Cunge method was then assessed using catchment derived parameters for use in ungauged river reaches. The Muskingum parameters were derived from empirically estimated variables and variables estimated from assumed river cross-sections within the selected river reaches used. Three sub-catchments in the Thukela catchment in KwaZulu-Natal, South Africa were selected for analyses, with river lengths of 4, 21 and 54 km. The slopes of the river reaches and reach lengths were derived from a digital elevation model. Manning roughness coefficients were estimated from field observations. Flow variables such as velocity, hydraulic radius, wetted perimeters, flow depth and top flow width were determined from empirical equations and cross-sections of the selected rivers. Lateral inflows to long river reaches were estimated from the Saint-Venant equation. Observed events were extracted for each sub-catchment to assess the Muskingum-Cunge parameter estimation method and Three-parameter Muskingum method. The extracted events were further analysed using empirically estimated flow variables. The performances of the methods were evaluated by comparing both graphically and statistically the simulated and observed hydrographs. Sensitivity analyses were undertaken using three selected events and a 50% variation in selected input variables was used to identify sensitive variables. The performance of the calibrated Muskingum-Cunge flood routing method using observed hydrographs displayed acceptable results. Therefore, the Muskingum-Cunge flood routing method was applied in ungauged catchments, with variables estimated empirically. The results obtained shows that the computed outflow hydrographs generated using the Muskingum-Cunge method, with the empirically estimated variables and variables estimated from cross-sections of the selected rivers resulted in reasonably accurate computed outflow hydrographs with respect to peak discharge, timing of peak flow and volume. From this study, it is concluded that the Muskingum-Cunge method can be applied to route floods in ungauged catchments in the Thukela catchment and it is postulated that the method can be used to route floods in other ungauged rivers in South Africa.
Book Synopsis Numerical Modeling in Open Channel Hydraulics by : Romuald Szymkiewicz
Download or read book Numerical Modeling in Open Channel Hydraulics written by Romuald Szymkiewicz and published by Springer Science & Business Media. This book was released on 2010-03-10 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Open channel hydraulics has always been a very interesting domain of scienti c and engineering activity because of the great importance of water for human l- ing. The free surface ow, which takes place in the oceans, seas and rivers, can be still regarded as one of the most complex physical processes in the environment. The rst source of dif culties is the proper recognition of physical ow processes and their mathematical description. The second one is related to the solution of the derived equations. The equations arising in hydrodynamics are rather comp- cated and, except some much idealized cases, their solution requires application of the numerical methods. For this reason the great progress in open channel ow modeling that took place during last 40 years paralleled the progress in computer technique, informatics and numerical methods. It is well known that even ty- cal hydraulic engineering problems need applications of computer codes. Thus, we witness a rapid development of ready-made packages, which are widely d- seminated and offered for engineers. However, it seems necessary for their users to be familiar with some fundamentals of numerical methods and computational techniques applied for solving the problems of interest. This is helpful for many r- sons. The ready-made packages can be effectively and safely applied on condition that the users know their possibilities and limitations. For instance, such knowledge is indispensable to distinguish in the obtained solutions the effects coming from the considered physical processes and those caused by numerical artifacts.
Book Synopsis Extreme Hydrological Events by : Zbigniew Kundzewicz
Download or read book Extreme Hydrological Events written by Zbigniew Kundzewicz and published by . This book was released on 1993 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computer Models for Water-Resources Planning and Management by : Ralph A. Wurbs
Download or read book Computer Models for Water-Resources Planning and Management written by Ralph A. Wurbs and published by DIANE Publishing. This book was released on 1997-04 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is designed to help water managers & planners who are not expert in modeling, & modeling experts in one area who are interested in surveying available models in another area. Covers: model development & distribution org's.; general-purpose software; demand forecasting & balancing supply with demand; water distribution system models; ground water models; watershed runoff models; stream, hydraulics models; river & reservoir water quality models; & reservoir/river system operation models. Inventory of selected models appendix. Tables.
Book Synopsis Hydraulic Flood Routing Models of the Peace and Slave Rivers, Hudson Hope to Great Slave Lake by : Faye Ellen Hicks
Download or read book Hydraulic Flood Routing Models of the Peace and Slave Rivers, Hudson Hope to Great Slave Lake written by Faye Ellen Hicks and published by . This book was released on 1996 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes a hydraulic flood routing model developed to accurately model the open water river discharge on the Peace and Slave rivers. The model is capable of modelling the discharge at sites where no discharge data exist. The document includes description of the development of the database for the model, including the geometric database (channel distances, surface slopes, bed profiles, channel widths and resistances) and the hydrologic data. The appendix includes a user manual for the user-friendly microcomputer program that has been set up to run historical flows (1961-93) and to simulate naturalised flows on the Peace River (1969-91).
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 1424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Information Theory and Artificial Intelligence to Manage Uncertainty in Hydrodynamic and Hydrological Models by : Abebe Andualem Jemberie
Download or read book Information Theory and Artificial Intelligence to Manage Uncertainty in Hydrodynamic and Hydrological Models written by Abebe Andualem Jemberie and published by CRC Press. This book was released on 2014-04-21 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: The complementary nature of physically-based and data-driven models in their demand for physical insight and historical data, leads to the notion that the predictions of a physically-based model can be improved and the associated uncertainty can be systematically reduced through the conjunctive use of a data-driven model of the residuals. The objective of this thesis is to minimise the inevitable mismatch between physically-based models and the actual processes as described by the mismatch between predictions and observations. The complementary modelling approach is applied to various hydrodynamic and hydrological models.
Book Synopsis Flood Routing Methods by : Vujica M. Yevjevich
Download or read book Flood Routing Methods written by Vujica M. Yevjevich and published by . This book was released on 1960 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Geological Survey Professional Paper by :
Download or read book U.S. Geological Survey Professional Paper written by and published by . This book was released on 1985 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rainfall - Runoff Modelling by : Keith J. Beven
Download or read book Rainfall - Runoff Modelling written by Keith J. Beven and published by John Wiley & Sons. This book was released on 2003 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amid climatic changes linked to global warming, ongoing changes in land-use patterns, and growing international concern with the environment it is increasingly important to understand the potential impact of these changes on the environment. Rainfall-runoff modeling is an important predictor of that impact. This book introduces rainfall-runoff models that have been developed over the past 24-30 years, giving examples of their practical applications. It provides a summary of available techniques for rainfall modeling based upon the most recent research, but in a way that serves as a primer for the subject. Provides an overview of how catchment rainfall-runoff systems work A history of rainfall-runoff models Examples of models can be downloaded over the Internet Looks at uncertainty in model prediction
Book Synopsis U.S. Geological Survey Professional Paper by : Geological Survey (U.S.)
Download or read book U.S. Geological Survey Professional Paper written by Geological Survey (U.S.) and published by . This book was released on 1984 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydraulic Engineering Software V: Free surface flow and hydraulic software by : William Robert Blain
Download or read book Hydraulic Engineering Software V: Free surface flow and hydraulic software written by William Robert Blain and published by . This book was released on 1994 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title discusses the applications of software in hydraulic engineering and water resources. It contains the edited proceedings of the Fifth International Conference on Hydraulic Engineering Software, held in Greece in September 1994.
Book Synopsis Hydrological Modelling in Arid and Semi-Arid Areas by : Howard Wheater
Download or read book Hydrological Modelling in Arid and Semi-Arid Areas written by Howard Wheater and published by Cambridge University Press. This book was released on 2007-11-22 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arid and semi-arid regions are defined as areas where water is at its most scarce. The hydrological regime in these areas is extreme and highly variable, and they face great pressures to deliver and manage freshwater resources. However, there is no guidance on the decision support tools that are needed to underpin flood and water resource management in arid areas. UNESCO initiated the Global network for Water and Development Information for arid lands (GWADI), and arranged a workshop of the world's leading experts to discuss these issues. This book presents chapters from contributors to the workshop, and includes case studies from the world's major arid regions to demonstrate model applications, and web links to tutorials and state-of-the-art modelling software. This volume is a valuable reference for researchers and engineers working on the water resources of arid and semi-arid regions.
Book Synopsis Three-dimensional Model Simulation of Transient Ground-water Flow in the Albuquerque-Belen Basin, New Mexico by : John Michael Kernodle
Download or read book Three-dimensional Model Simulation of Transient Ground-water Flow in the Albuquerque-Belen Basin, New Mexico written by John Michael Kernodle and published by . This book was released on 1987 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesized Flood Frequency for Small Urban Streams in Tennessee by : Clarence H. Robbins
Download or read book Synthesized Flood Frequency for Small Urban Streams in Tennessee written by Clarence H. Robbins and published by . This book was released on 1984 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
