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Showing 1 to 13 of 13 for “"Bankfull discharge"”.
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How do sand-bed meandering rivers co-construct their own bankfull discharge and bankfull channel geometry? Analytical and numerical study
… floodplain. This channel is characterized by a bankfull width and depth, longitudinal slope, and bankfull discharge when the flow spills out onto the floodplain. No specific discharge is sufficient, however, to describe how the channel maintains itself. Above-bankfull flows increase the height …
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Elevation based classification of streams and establishment of regime equations for predicting bankfull channel geometry
… amount of efforts have been made to develop bankfull relations for estimating channel geometry that can be employed for stream restoration practices. Focusing on these two objectives, in this study a new stream classification system based on elevation above mean sea level has been developed …
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Channel-forming discharge and river meander migration modeling of the Pilcomayo River in the area of Misión La Paz (Argentina) and Pozo Hondo (Paraguay)
… evolution in time. The model uses a single discharge value for the simulations, thus estimation of a channel-forming discharge was necessary for the model application. Of the available methodologies for determining the channel-forming discharge, two are described herein, namely: the bankfull …
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Geomorphic Equations and Methods for Natural Channel Design
… reaches indicates that the return period of bankfull flow (annual maximum series), ranges from 1.01 to 1.7 years, with an average of 1.2 years. This is significantly lower than the 2-year flow commonly used by engineers in naturalistic river designs. An equation is developed that predicts the …
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Modeling the Biogenic Effects of Freshwater Mollusks on Bedload Transport and Dynamics in a Gravel-Bedded Stream
… particle size distributions for bankfull discharge events; and reach and patch-scale spatial analysis examining relationships between biogenic variables and sediment particle quantile D50. This study found that separated freshwater mussel and Corbicula Fluminea densities proved to …
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A Method for the Determination of Design Discharges for Urban Stream Restoration Projects in Northern Virginia
… return natural function to a stream. The design (bankfull) discharge for an NCD stream restoration project is the cornerstone of a restoration design. Existing methodologies for determining design discharges, such as hydrologic modeling and bankfull identification, have not worked well for NCD …
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Predicting suspended sediment in Illinois rivers using dimensionless rating curves
… State Water Survey monitoring program, and discharge data, collected by the U.S. Geological Survey (USGS), from ten sites across the state of Illinois are used in the sediment rating curve analysis. Field measurements of bankfull height at each site were taken and cross-referenced with the …
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Development of a regional curve to relate discharge and drainage area to hydraulic geometry for the Red River of the North Basin
… These curves can also be used to approximate discharge data for ungaged streams with lmown hydraulic geometry and drainage area. Hydraulic geometry data were collected in the field for twenty-five stream gage sites in the Red River of the North Basin. Recurrence intervals for bankfull ranged …
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Evaluating Streambank Retreat Prediction Using the BANCS Model in the Valley and Ridge Physiographic Province
… an empirically-derived model that predicts bankfull bank erosion rates using Bank Erodibility Hazard Index (BEHI), an indicator of bank stability, and Near-Bank Stress (NBS), an indicator of applied flow energy at bankfull discharge. This study assessed the BANCS framework in the Valley and …
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Channel characteristics and large organic debris in adjacent burned and unburned watersheds a decade after wildfire, Park County, Wyoming
… primarily during summer 1999. On average, the bankfull channel was 1.2 m wider in the burned stream than the reference stream after accounting for differences in drainage area and number of debris jams. Drainage area was the most important factor for explaining mean riffle width. The direction …
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Rapid flood damage prediction in short lead-time scenarios
… hydrology make possible the ability to predict discharge at nearly all locations in the conterminous United States (CONUS). Theoretically, these discharge outputs enable investigation into the plausibility of short lead-time hydraulic, and damage analyses during flood events. A system predicting …
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Terrestrial Laser Scanning for Quantifying Uncertainty in Fluvial Applications
… and Shield's number) and natural stochasticity (bankfull discharge and grain size) were incorporated into the analysis. The uncertainty design solutions for possible channel dimensions varied over a range of one to four times the magnitude of the deterministic solution. The uncertainty inherent …
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Redesigning River des Peres: to improve, protect, and maintain
… cities are seeing increased peak flow discharge volumes within their river systems and combined sewer overflow occurrences. The River des Peres located in the City and County of Saint Louis, Missouri, is an urban waterway that is affecting the natural ecosystem and community well-being. …