2 edition of Evaluation of selected methods for determining streamflow during periods of ice effect found in the catalog.
Evaluation of selected methods for determining streamflow during periods of ice effect
N. B. Melcher
by U.S. Dept. of the Interior, U.S. Geological Survey, For sale by Books and Open-File Report Sales in [Reston, Va.?], Denver, CO
Written in English
|Statement||by N.B. Melcher and J.F. Walker.|
|Series||U.S. Geological Survey water-supply paper -- 2378.|
|Contributions||Walker, J. F.|
|The Physical Object|
|Pagination||iv, 47 p. :|
|Number of Pages||47|
Estimation of Streamflow Under Ice. The methods used to estimate winter streamflow vary widely. Melcher and Walker ( Melcher, N. B., and J. F. Walker. Evaluation of selected methods for determining streamflow during periods of ice effect. United States Geological Survey (USGS) Water Supply Paper Cited by: methods usually apply the parametric and nonparametric methods during different steps of trace generation. Srinivas and Srinivasan () and Herman et al. () both used parametric methods to pre-standardize observations and then used nonparametric resampling methods to generate streamflow .
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Evaluation of Selected Methods for Determining Streamflow During Periods of Ice Effect By N.B. Melcher anc/J.F. Walker Abstract Seventeen methods for estimating ice-affected stream- flow are evaluated for potential use with the U.S.
Geologi cal Survey streamflow-gaging station network. The methodsCited by: Add tags for "Evaluation of selected methods for determining streamflow during periods of ice effect".
Be the first. Get this from a library. Evaluation of selected methods for determining streamflow during periods of ice effect. [N B Melcher; J F Walker; Geological Survey (U.S.)].
sw "Evaluation of Selected Methods for Determining Streamflow During Periods of Ice Effect" sw "Users Manual for WSPRO - A Computer Model for Water Surface Profile Computations" sw INFORMATION--Office of Surface Water Policy System.
sw "Evaluation of Selected Methods for Determining Streamflow During Periods of Ice Effect" sw "Users Manual for WSPRO - A Computer Model for Water Surface Profile Computations" sw INFORMATION--Office of Surface Water Policy System sw REPORTS--References to Sediment Reports.
Six sub-catchments nested in the Beiluo River basin were selected to investigate streamflow regime variations during the two project periods.
The annual streamflow trends and change points were. The discharge-ratio and multiple-regression methods produce estimates of streamflow for varying ice conditions using information obtained from the existing USGS streamflow-gaging network. -from. Base flow during low flow periods is a direct measure of the ground water discharge to a stream and should reflect the discharge from fractured systems during low flow periods.
However, as discussed in more detail in the section on ground water well sampling, contaminant concentrations in the ground water of fractured systems cannot be reliably.
Introduction. Streamflow is the volumetric discharge expressed in volume per unit time (typically cubic feet per second (ft 3 /s) or cubic meters per second (m 3 /s)) that takes place in a stream or channel and varies in time and space.
Excess streamflow can create a flooding hazard, and although excess streamflow is a natural occurrence and healthy for the ecosystem, mitigation may be.  In‐stream flow protection programs require accurate, real‐time streamflow data to aid in the protection of aquatic ecosystems during winter base flow periods.
In cold regions, however, winter streamflow often can only be estimated because in‐channel ice causes variable backwater conditions and alters the stage‐discharge by: 7.
During July through September, streamflow in the Arkansas River includes decreasing amounts of snowmelt and is augmented by releases of stored water. During this time, streamflow can increase substantially over short periods fol-lowing intense rainstorms and subsequent runoff from tributar-ies.
During July through September, most streamflow in theAuthor: Tamara Ivahnenko, Roderick F. Ortiz, Robert W. Stogner. Introduction. One of the most important of all the geologic processes is the force applied to land forms by running water.
In the same manner, running water can have a significant effect upon the distribution of the flora and fauna in lotic ecosystems (see reviews by Statzner et al.,Gore,Gordon and McMahon,Allan and Castillo, ).Cited by: The hand- book analysis procedure is applicable only to these headwater areas (third-order basins or smaller).
A larger basin may be characterized from selected third-order drainages within that basin through data analysis and extrapolation based upon the similarities in site and management ac- tivities.
For this reason, the watershed area upstream from the lakes will have less immediate effect on the stream conditions downstream from the lakes during periods of increased runoff, but the lakes would have a long-term effect during base flow.
Fixed-interval water-quality samples were collected throughout the pre- and post-BMP periods. Extended periods of moisture deficit over a sizeable area sufficient to have an adverse effect on vegetation, animals, or man. ocean-atmosphere interaction Processes, including momentum, heat, gas and other exchanges, which result in profound effects on climate and interactions between the air in the lowest part of the atmosphere and the oceans.
Reduction of silica concentrations in the euphotic zone during productive thermally stratified periods to limiting levels is an important predictive parameter that should be monitored. Monthly sampling is adequate if silica concentrations exceed 5 mg/L, but sampling should be increased to biweekly when concentrations are less than 5 mg/L.
A hydrological model is a useful tool to study the effects of human activities and climate change on hydrology. Accordingly, the performance of hydrological modeling is vitally significant for hydrologic predictions. In watersheds with intense human activities, there are difficulties and uncertainties in model calibration and simulation.
Alternative approaches, such as machine learning Cited by: 6. Reliable streamflow and flood-affected area forecasting is vital for flood control and risk assessment in the Brahmaputra River basin. Based on the satellite remote sensing from four observation sites and ground observation at the Bahadurabad station, the Burg entropy spectral analysis (BESA), the configurational entropy spectral analysis (CESA), maximum likelihood (MLE), ordinary least Author: Xiaobo Wang, Shaoqiang Wang, Huijuan Cui.
It is of prime importance that the stage-discharge relation be defined for flood conditions and for periods when the rating is subject to shifts as a result of ice formation (see section titled, “Effect of Ice Formation on Discharge Ratings”) or as a result of the variable channel and control conditions discussed in the section titled.
When determining the effect flood inflows will have on dam safety, a hydrologic approach may be used. Simply stated, when determining the effect flood inflows will have on dam safety, the following approach establishes the IDF for the project, and either: • determines whether an existing project can safely accommodate the IDF; orFile Size: 1MB.
during high-impact weather events (e.g., flood risk) and during snowmelt periods in the spring. In some cases, the short-range forecast can directly determine a reservoir release, whereas in other cases, it may form one of multiple informational inputs that are used more qualitatively to determine a release schedule.Methods have been developed for determining snowmelt hydrographs based on rates of solar radiation.
However, historical snow- melt flood hydrographs from the study basin or similar basins are often the best guide to hydrograph shapes and can be adjusted on the. In addition to streamflow and snow cover data, basin mean weekly precipitation and temperature time series during – have been created based on gridded global data sets [Jones, ; Hulme, ], and used to investigate the compatibility of SWE data with climate variables and to explain the streamflow response to seasonal snow cover Cited by: