3 edition of Techniques for estimating flood hydrographs for ungaged urban watersheds found in the catalog.
Techniques for estimating flood hydrographs for ungaged urban watersheds
by U.S. Dept. of the Interior, Geological Survey, Open-File Services Section, Western Distribution Branch in [Reston, Va.?], Lakewood, Colo
Written in English
|Statement||by V.A. Stricker and V.B. Sauer ; prepared in cooperation with U.S. Department of Transportation, Federal Highway Administration|
|Series||Open-file report -- 82-365, Open-file report (Geological Survey (U.S.)) -- 82-365|
|Contributions||Sauer, Vernon B., 1933-, United States. Federal Highway Administration, Geological Survey (U.S.)|
|The Physical Object|
Journal of Hydrology 4 () ; North-Holland Publishing Co., Amsterdam Not to be reproduced by photoprint or microfilm without written permission from the publisher ESTIMATING PEAK RATES OF RUNOFF AND DESIGN HYDROGRAPHS FROM RAINFALL IN THE STATE OF OKLAHOMA G. N. SESHAPPA RAO, JOSEPH R. ASSENZO and JIM F. HARP School of Civil Engineering and Cited by: 1. hydrographs,” in general, and the peak stream flow of a design hydrograph, in particular, are critical for cost-effective, risk-mitigated design of drainage structures such .
Urban Hydrology for Small Watersheds Chapter 1 IntroductionIntroduction The conversion of rural land to urban land usually increases erosion and the discharge and volume of storm runoff in a watershed. It also causes other problems that affect soil and water. As part of . Techniques for Estimating Stormwater Runoff for Watersheds in West-Central Florida By J.T. Trommer, J.E. Loper, and K.M. Hammett U.S. Geological Survey Water-Resources Investigations Report 96– Prepared in cooperation with the SARASOTA COUNTY, FLORIDA Tallahassee, Florida
Runoff process --Hydrologic data --Frequency analysis and peak flow determinations --Peak flow determinations for ungaged sites --Determination of flood hydrographs --Hydrograph routing --Urbanization and other factors affecting peak discharge and hydrographs --Risk analysis. Series Title: Hydraulic engineering circular, no. ;. Sutherland, R. Methods for Estimating the Effective Impervious Area of Urban Watersheds: The Practice of Watershed Protection. Center for Watershed Protection, Ellicott City, MD. Pages impervious, planning, urban, watershed, protection.
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Techniques for estimating flood hydrographs for ungaged urban watersheds: USGS Open-File Report [Stricker, V. A., Sauer, V. B.] on *FREE* shipping on qualifying offers.
Techniques for estimating flood hydrographs for Authors: V. Sauer, V. Stricker. TECHNIQUES FOR ESTIMATING FLOOD HYDROGRAPHS FOR UNGAGED URBAN WATERSHEDS By V. Stricker and V. Sauer ABSTRACT The Clark Method, modified slightly, was used to develop a synthetic, dimensionless hydrograph that can be used to estimate flood hydrographs for ungaged urban watersheds.
Application of the technique results in a typicalCited by: Get this from a library. Techniques for estimating flood hydrographs for ungaged urban watersheds.
[Virginia Stricker; Vernon B Sauer; United States. Federal Highway Administration.; Geological Survey. The flood-hydrograph and flood-volume techniques are useful for estimating a typical (average) flood.
hydrograph and volume for any specified recur- rence interval peak discharge at any. ungaged stream site draining areas less than square miles in central Tennessee. INTRODUCTION. File Size: 1MB. This report presents the results of Phase 1 of Project SC ‘Estimating flood peaks and hydrographs for small catchments’.
This work was jointly funded by the Environment Agency, the Centre for Ecology & Hydrology (CEH) and JBA by: 3. sw PUBLICATIONS--Report "Techniques for Estimating Flood Hydrographs for Ungaged Urban Watersheds" by Virginia Stricker and Vernon Sauer sw PUBLICATIONS--Update of Open-File Report "User's Guide for U.S.
Geological Survey. WRIRTechniques for Estimating Selected Streamflow Characteristics of Rural, Unregulated Streams in Ohio; WSP (), Estimation of Peak-Frequency Relations, Flood Hydrographs, and Volume-Duration-Frequency Relations of Ungaged Small Urban Streams in Ohio.
The Clark Method, modified slightly, was used to develop a synthetic dimensionless hydrograph that can be used to estimate flood hydrographs for ungaged urban watersheds. ing quantities of runoff in flood hydrographs or in relation to flood peak rates (National Engineering Handbook (NEH), chapter 16).
An understand-ing of runoff types is necessary to apply the method properly in different climatic regions. Four types are distinguished: channel, surface, lateral subsurface flow, and baseflow.
Determining flood features in unguaged watersheds has always been a challenge. The under study basin in this research, named Jongabad, is an ungauged basin with an area of Km2 in center of.
The stochastic empirical loading and dilution model (SELDM) is a stormwater quality model. SELDM is designed to transform complex scientific data into meaningful information about the risk of adverse effects of runoff on receiving waters, the potential need for mitigation measures, and the potential effectiveness of such management measures for reducing these risks.
o On urban catchments (URBEXT >), where theresults of the ReFH model can be less reliable. Checks should be carried out to ensure that the flood estimates are within expected ranges based on the history of flooding and the capacity of the channel (including evidence from previous flood marks).
Estimating flood peaks and hydrographs for. Estimating flood peaks and hydrographs for small catchments: Phase 1 Executive summary This report presents the results of Phase 1 of Project SC Estimating flood ‘ peaks and hydrographs for small catchments’.
This work was jointly funded by the Environment Agency, the Centre for Ecology & Hydrology (CEH) and JBA Consulting. 16–1) is used to develop the flood hydrograph.
See example 16–1 which develops a composite flood hydrograph for area A shown in figure 16–2. Also, each of the two unit hydrographs developed for areas C2 and C1 in figure 16–2 may be used to develop flood. Urban Hydrology for Small Watersheds Tabular Hydrograph Method Table values by rounding method Actual values 1 2 3 T c T t Sum In this instance, the results from method 3 would be selected because the sum is closest to the actual sum of Selecting I a /P The computed I a / P value can File Size: KB.
flood hydrographs for selected recurrence intervals, estimates of the probable maximum flood, extrapolation of the year flood when an equation for estimating it is not available, and weighting techniques to improve flood-frequency estimates for gaging stations and ungaged sites on.
Methods are presented for estimating flood volumes and simulating flood hydrographs of rural streams in Ohio whose drainage areas are less than square miles. The methods were developed to assist engineers in the design of hydraulic structures for which the temporary storage of water is a critical element of the design criteria.
Examples of how to use the methods also are presented. Methods are presented for estimating peak discharges, flood volumes and hydrograph shapes of small (less than 5 sq mi) urban streams in Ohio.
Examples of how to use the various regression equations and estimating techniques also are presented. Multiple-regression equations were developed for estimating peak discharges having recurrence intervals of 2, 5, 10, 25, 50, and years.
and/or ungaged watersheds are discussed in Section 5. Hydrograph development is the subject of Section 6. Unit hydrographs are discussed together with the development of flood hydrographs from data and by synthetic methods for ungaged areas. The conversion of unit hydrographs to File Size: 5MB.
approaches are based on 5-minute gamma-distribution hydrographs. The unit hydrographs by watershed from the approaches are represented by shape and time to peak parameters.
Weighted least-squares regression equations to estimate the two unit hydrograph parameters for ungaged watersheds are provided on the basis of the watershed characteristics of. Two approaches for estimating the magnitude and frequency of flood discharges for ungaged watersheds are those methods based on statistical (regression) analysis of data collected at gaging stations and deterministic rainfall-runoff models that use rainfall input and algorithms to convert rainfall excess to .A hydrograph is a graph showing the rate of flow versus time past a specific point in a river, channel, or conduit carrying rate of flow is typically expressed in cubic meters or cubic feet per second (cms or cfs).
It can also refer to a graph showing the volume of water reaching a particular outfall, or location in a sewerage network. Graphs are commonly used in the design of.revised the local empirical formula for estimating the time to peak on the unitgraph for watersheds smaller than 90 acres (Urban Storm Water Design Criteria Manual, ).
All of these methods represent efforts to overcome the insufficiency of the Rational method in estimating storm hydrographs under a non-uniform rainfall distribution.