Download or read book Parameterization of Hydrological Model in Ungauged Catchments written by Shailesh Kumar Singh and published by LAP Lambert Academic Publishing. This book was released on 2010-07 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: A prediction in ungauged basins is one of the challenging tasks for a hydrologist of this century. Even though the physically based hydrological models can be the more appropriate in ungauged basins but data requirement limit the use. Conceptual hydrological models are simple and easy to use. These models are needed to be calibrated to obtain the parameters of the model. Availability of data at all location in the basin limits the calibration of conceptual hydrological models. In this book a calibration methodology is presented for discharge series limited condition using upstream and downstream data.

Download or read book Rainfall runoff Modelling in Gauged and Ungauged Catchments written by Thorsten Wagener and published by World Scientific. This book was released on 2004 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important monograph is based on the results of a study on the identification of conceptual lumped rainfall-runoff models for gauged and ungauged catchments. The task of model identification remains difficult despite decades of research. A detailed problem analysis and an extensive review form the basis for the development of a Matlab- modelling toolkit consisting of two components: a Rainfall-Runoff Modelling Toolbox (RRMT) and a Monte Carlo Analysis Toolbox (MCAT). These are subsequently applied to study the tasks of model identification and evaluation. A novel dynamic identifiability approach has been developed for the gauged catchment case. The theory underlying the application of rainfall-runoff models for predictions in ungauged catchments is studied, problems are highlighted and promising ways to move forward are investigated. Modelling frameworks for both gauged and ungauged cases are developed. This book presents the first extensive treatment of rainfall-runoff model identification in gauged and ungauged catchments."

Download or read book Predictions in Ungauged Basins written by Murugesu Sivapalan and published by . This book was released on 2006 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Runoff Prediction in Ungauged Basins written by Günter Blöschl and published by Cambridge University Press. This book was released on 2013-04-18 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: Predicting water runoff in ungauged water catchment areas is vital to practical applications such as the design of drainage infrastructure and flooding defences, runoff forecasting, and for catchment management tasks such as water allocation and climate impact analysis. This full colour book offers an impressive synthesis of decades of international research, forming a holistic approach to catchment hydrology and providing a one-stop resource for hydrologists in both developed and developing countries. Topics include data for runoff regionalisation, the prediction of runoff hydrographs, flow duration curves, flow paths and residence times, annual and seasonal runoff, and floods. Illustrated with many case studies and including a final chapter on recommendations for researchers and practitioners, this book is written by expert authors involved in the prestigious IAHS PUB initiative. It is a key resource for academic researchers and professionals in the fields of hydrology, hydrogeology, ecology, geography, soil science, and environmental and civil engineering.

Download or read book Regionalization of Hydrological Model to Predict Ungauged Basins written by Syed Abu Shoaib and published by LAP Lambert Academic Publishing. This book was released on 2012-08 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Author analyzed the existing methods in regionalization studies to Predict Ungauged Basins and considering all the aspects a new methodology is developed, which is named as RDS Method. ROPE(R) - Data depth (D)-Spatial Proximity (S) together gets this name RDS. Robust Parameter Estimation (ROPE) algorithm ensure all parameter vectors robust with the following criteria: (i) lead to good model performance over the selected time period (ii) lead to a hydrologically reasonable representation of the corresponding process (iii) insensitive (iv) transferable (can be regionalized). Data depth function is used to find the boundary or the outlier of the catchments to identify donor catchments. It's also used in ROPE algorithm. Application of the Spatial proximity-one of the earliest approach consists of transferring parameters from neighboring catchments to the ungauged catchment, the inspiration being that catchments that are close to each other should have similar behavior since climate and catchment conditions should vary evenly in space. Blending this three key (ROPE- Data depth- Spatial Proximity) concept together brought a new light in predicting Ungauged Basins.

Download or read book Large Sample Basin Experiments for Hydrological Model Parameterization written by Vazgēn Andrēasean and published by International Assn of Hydrological Sciences. This book was released on 2006-01-01 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The estimation of hydrological parameters at ungauged catchments written by D H. Burn and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

Download or read book Hydrologic Modeling of Gauged and Ungauged Catchments written by Shibayan Sarkar and published by LAP Lambert Academic Publishing. This book was released on 2010 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describe the modeling approach for the flood flows for gauged and ungauged catchments. This book comprise of modeling approaches of intensity duration frequency curve, unit hydrograph, geomorphologic instantaneous unit hydrograph, rainfall excess computations, parameter estimation, hydraulic modeling, etc. Apart from this, application of Geographic Information System (GIS) in surface hydrology is described in the book. This book will provide the good understanding of using the hydrologic models for estimating the flood flows. For replication of the approches, computer programmes appended in the book will be very helpful to users. This book will be beneficial to the hydrologist, researchers, civil and agricultural engineers.

Download or read book Catchment Classification Applied to the Estimation of Hydrological Parameters at Ungauged Catchments written by Donald H. Burn and published by . This book was released on 1992 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estimates of hydrological parameters at ungauged sites have traditionally been obtained from regression equations. This study investigates alternative methods based on the classification of catchments according to their flow regime, the assignment of ungauged catchments to a class based on physical characteristics of the catchment, and the use of similarity measures to transfer parameters from gauged to ungauged catchments. This report considers the methods that can be adopted in this type of approach, and the many variations that must be considered in their implementation. The methods are examined using a set of 99 catchments from the UK, and are seen to be efficacious in estimating the unit hydrograph time to peak and standard percentage runoff, as defined by the UK Flood Studies Report. A step-by-step guide and worked example show how the method can be applied in practice.

Download or read book Calibration of Watershed Models written by Qingyun Duan and published by John Wiley & Sons. This book was released on 2003-01-10 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Water Science and Application Series, Volume 6. During the past four decades, computer-based mathematical models of watershed hydrology have been widely used for a variety of applications including hydrologic forecasting, hydrologic design, and water resources management. These models are based on general mathematical descriptions of the watershed processes that transform natural forcing (e.g., rainfall over the landscape) into response (e.g., runoff in the rivers). The user of a watershed hydrology model must specify the model parameters before the model is able to properly simulate the watershed behavior.

Download or read book Scale Issues in Hydrological Modelling written by J. D. Kalma and published by John Wiley & Sons. This book was released on 1995-09-11 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a growing need for appropriate models which address the management of land and water resources and ecosystems at large space and time scales. Theories of non-linear hydrological processes must be extrapolated to large-scale, three-dimensional natural systems such as drainage basins, flood plains and wetlands. This book reports on recent progress in research on scale issues in hydrological modelling. It brings together 27 papers from two special issues of the journal Hydrological Processes. The book makes a significant contribution towards developing research strategies for linking model parameterisations across a range of temporal and spatial scales. The papers selected for this book reflect the tremendous advances which have been made in research into scale issues in hydrological modelling during the last ten years.

Download or read book Rainfall Runoff Modelling written by Keith J. Beven and published by John Wiley & Sons. This book was released on 2012-01-30 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rainfall-Runoff Modelling: The Primer, Second Edition is the follow-up of this popular and authoritative text, first published in 2001. The book provides both a primer for the novice and detailed descriptions of techniques for more advanced practitioners, covering rainfall-runoff models and their practical applications. This new edition extends these aims to include additional chapters dealing with prediction in ungauged basins, predicting residence time distributions, predicting the impacts of change and the next generation of hydrological models. Giving a comprehensive summary of available techniques based on established practices and recent research the book offers a thorough and accessible overview of the area. Rainfall-Runoff Modelling: The Primer Second Edition focuses on predicting hydrographs using models based on data and on representations of hydrological process. Dealing with the history of the development of rainfall-runoff models, uncertainty in mode predictions, good and bad practice and ending with a look at how to predict future catchment hydrological responses this book provides an essential underpinning of rainfall-runoff modelling topics. Fully revised and updated version of this highly popular text Suitable for both novices in the area and for more advanced users and developers Written by a leading expert in the field Guide to internet sources for rainfall-runoff modelling software

Download or read book Spatial Patterns in Catchment Hydrology written by Rodger Grayson and published by CUP Archive. This book was released on 2001-08-06 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes use of observed patterns in understanding and modelling hydrological response, for researchers and graduate students.

Download or read book Water in Environmental Planning written by Thomas Dunne and published by Macmillan. This book was released on 1978-08-15 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt: A classic advanced undergraduate/graduate level text showing how knowledge of hydrology, fluvial geomorphology, and river quality are used in environmental planning. The focus is on maintenance or reclamation of environmental quality, with the text, examples, and exercises emphasizing early identification of problems and address nonstructural solutions

Download or read book Global Change and Regional Impacts written by Thomas Gaiser and published by Springer Science & Business Media. This book was released on 2003 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a summary of the main research results and the presentations given at the final conference of the WAVES Program on June 25-26, 2001 in Fortaleza (Brazil). Global climatic change will most likely affect natural resources and human living conditions in semi-arid regions. The authors present disciplinary as well as integrative methods to assess these impacts considering the interactions between climate variability and change, water availability, land-use systems, and quality of life.

Download or read book Conceptual Catchment Model Parameter Transfer Studies written by Denis Arthur Hughes and published by . This book was released on 1983 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: