Download or read book Flood Hydrograph and Peak Flow Frequency Analysis written by Arlen D. Feldman and published by . This book was released on 1979 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Flood Frequency Analysis for Regulated Watersheds written by Natalie Jean Ergish and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Flood frequency curves provide the annual probability of exceeding a specific flood flow. Unregulated peak flow frequencies are typically estimated based on a statistical analysis assuming floods are random homogenous events. Bulletin 17B procedures recommend a log-Pearson Type III distribution to fit a curve through observed flood data. However, such statistical analysis is inappropriate for regulated flood flows because they are affected by the flood operation of reservoirs as well as the volumes and peaks of flood hydrographs. A regulated flood frequency curve can be derived from a long unregulated period of flow record based on routing studies and developing a relationship between regulated peak outflow and unregulated inflow peak or volume, often called a peak flow transform. To resolve the interaction of peak flow rate and flood volume, a critical peak duration is often chosen, averaging flow over several days. The unregulated peak flow frequency curve, averaged over a critical duration, is then transformed to produce the regulated peak flow frequency curve. This paper examines the theoretical behavior of regulated peak transforms and provides a short case study within the Feather-Yuba river system. Two operating rules are used to simulate inflow, outflow, and storage within the reservoir and illustrate the development of a peak flow transform. These rules are: 1) optimal peak reduction with perfect foreknowledge of the flood hydrograph; and 2) minimized exceedences of downstream channel capacity. The flow transforms developed using these two operating rules seem likely to bound the range of actual peak flow transforms.

Download or read book Guidelines for Determining Flood Flow Frequency written by and published by . This book was released on 1981 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guidelines for Determining Flood Flow Frequency written by Water Resources Council (U.S.). Hydrology Committee and published by . This book was released on 1975 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimating Peak Flow Frequencies for Natural Ungaged Watersheds written by Water Resources Council (U.S.). Hydrology Committee and published by . This book was released on 1981 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Engineering and Design written by and published by . This book was released on 1993 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of frequency analysis in a hydrologic context is to infer the probability that various size events will be exceeded or not exceeded from a given sample of recorded events. Two basic problems exist for most hydrologic applications. First the sample is usually small, by statistical standards, resulting in uncertainty as to the true probability. And secondly, a single theoretical frequency distribution does not always fit a particular data-type equally well in all applications. This manual provides guidance in fitting frequency distributions and construction of confidence limits. Techniques are presented which can possibly reduce the errors caused by small sample sizes. Also, some types of data are noted which usually do not fit any theoretical distributions.

Download or read book Flood Flow Frequency for Ungaged Watersheds written by and published by . This book was released on 1977 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Flood Frequency Analysis written by Khaled Hamed and published by CRC Press. This book was released on 2019-04-30 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: After five decades, the field of Statistical Hydrology continues to evolve and remains a very active area of investigation. Researchers continue to examine various distributions, methods of estimation of parameters, and problems related to regionalization. However, much of this research appears in journals and reports and usually in a form not easi

Download or read book Estimated 100 year Peak Flows and Flow Volumes in the Big Lost River and Birch Creek at the Idaho National Engineering Laboratory Idaho written by L. C. Kjelstrom and published by . This book was released on 1996 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this report is to provide estimates of the 100-year peak flows and flow volumes that could enter the INEL area from the Big Lost River and Brich Creek are needed as input data for models that will be used to delineate the extent of the 100-year flood plain at the INEL. The methods, procedures and assumptions used to estimate the 100-year peak flows and flow volumes are described in this report.

Download or read book Analysis of flood flow frequency flood duration and channel forming flow for the James River in South Dakota written by Rick D. Benson and published by . This book was released on 1988 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Frequency Analysis of Illinois Floods Using Observed and Synthetic Streamflow Records written by George W. Curtis and published by . This book was released on 1978 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Regression Equations for Estimating Flood Flows for the 2 10 25 50 100 and 500 year Recurrence Intervals in Connecticut written by Elizabeth A. Ahearn and published by . This book was released on 2004 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technique for estimating flood peak discharges and frequencies on rural streams in Illinois written by George W. Curtis and published by . This book was released on 1988 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Application of the Frequency equivalent Non linear Hydrograph Method of Flood Frequency Analysis in Urban Basins written by Robert Lee Smith and published by . This book was released on 1978 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seminar on Flood Frequency Analysis 30 September 1985 written by and published by . This book was released on 1985 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrology written by Frank D. Masch and published by . This book was released on 1984 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual provides a synthesis of practical hydrologic methods and techniques to assist the highway engineer in the analysis and design of highway drainage structures. The manual begins with a discussion of descriptive hydrology, the surface runoff process and hydrologic data with emphasis given to the highway stream-crossing problem. The commonly used frequency distributions for estimating peak flows for basins with adequate data are discussed in detail and illustrated by examples. USGS regional regression equations and other methods for peak flow determinations in ungaged watersheds and in basins with insufficient data are presented with examples. Methods for developing unit hydrographs from streamflow data and by the Snyder and SCS synthetic procedures for ungaged sites are described in detail. Techniques for developing design storms and design hydrographs are given for basins with and without data. The Muskingum method for routing of hydrographs in channels and the Storage-Indication method for storage routing at highway embankments are discussed with illustrative examples. Estimates of peak flow and hydrograph development in urban watersheds using the SCS methods of TR-55 and the USGS Basin Development Factor procedure are illustrated in detail. The manual concludes with a brief discussion of risk analysis and its dependence on hydrologic analysis.

Download or read book The New HEC 1 Flood Hydrograph Package written by Arlen D. Feldman and published by . This book was released on 1981 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes the new version of the HEC-1 Flood Hydrograph Package - a comprehensive simulation model computer program. The many hydrologic and hydraulic simulation capabilities of the model are described. Special emphasis is given to analysis of dam safety and dam failure flood damage studies, and urban hydrology. The general applicability and usage of the model are described. (Author).