Data from: Comparison of sediment transport and bedforms from steady and unsteady flow hydrographs of similar flow rate
This is the dataset that was used to make the figures for the publication entitled "Comparison of sediment transport and bedforms from steady and unsteady flow hydrographs of similar flow rate"The citation for the publication is: Wren, D. G., McAlpin, T. O., and Langendoen, E. L. Comparison of sediment transport and bedforms for equilibrium flows to unsteady hydrograph flows at the same flow rates. Journal of Hydraulic Engineering. (In preparation).Flow rates and depths in natural rivers and streams can change rapidly with time due to runoff from rainfall and snowmelt. These changing conditions complicate the prediction of sediment transport, bed topography, and flow depth. Due to the difficulty in collecting field data during unsteady flow events, it is necessary to use laboratory flume experiments to study sediment transport and bedform properties during unsteady flows. The goal of the work described here was to isolate the effects of hydrograph flows on bedform dimensions, water surface slope, and sediment transport relative to the same flow rates in equilibrium conditions for steady flows while also comparing results across the various flowrates. For three repeated hydrographs of 1-, 3-, and 6-hour periods, quantities measured at four different flow rates during the hydrographs will be compared to equilibrium conditions for each flow rate. The development of bedforms during rising and peak flow rates competed with the destruction of bedforms during falling flow rates. When bedform growth was greater than decay, bedform sizes, water surface slopes, and transport rates during falling flow rates were typically greater than for equilibrium steady conditions at the same flow rate, while they were typically smaller than equilibrium bedforms for rising flow rates.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"005:18"
]
|
| contactPoint |
{
"fn": "Wren, Daniel G.",
"hasEmail": "mailto:daniel.wren@usda.gov"
}
|
| description | <p dir="ltr">This is the dataset that was used to make the figures for the publication entitled "Comparison of sediment transport and bedforms from steady and unsteady flow hydrographs of similar flow rate"</p><p dir="ltr">The citation for the publication is: Wren, D. G.<b>,</b> McAlpin, T. O., and Langendoen, E. L. Comparison of sediment transport and bedforms for equilibrium flows to unsteady hydrograph flows at the same flow rates. Journal of Hydraulic Engineering. (In preparation).</p><p dir="ltr">Flow rates and depths in natural rivers and streams can change rapidly with time due to runoff from rainfall and snowmelt. These changing conditions complicate the prediction of sediment transport, bed topography, and flow depth. Due to the difficulty in collecting field data during unsteady flow events, it is necessary to use laboratory flume experiments to study sediment transport and bedform properties during unsteady flows. The goal of the work described here was to isolate the effects of hydrograph flows on bedform dimensions, water surface slope, and sediment transport relative to the same flow rates in equilibrium conditions for steady flows while also comparing results across the various flowrates. For three repeated hydrographs of 1-, 3-, and 6-hour periods, quantities measured at four different flow rates during the hydrographs will be compared to equilibrium conditions for each flow rate. The development of bedforms during rising and peak flow rates competed with the destruction of bedforms during falling flow rates. When bedform growth was greater than decay, bedform sizes, water surface slopes, and transport rates during falling flow rates were typically greater than for equilibrium steady conditions at the same flow rate, while they were typically smaller than equilibrium bedforms for rising flow rates.</p> |
| distribution |
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|
| identifier | 10.15482/USDA.ADC/28351667.v1 |
| keyword |
[
"bedforms",
"hydrographs",
"sediment transport",
"unsteady flows"
]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2026-01-16 |
| programCode |
[
"005:040"
]
|
| publisher |
{
"name": "Agricultural Research Service",
"@type": "org:Organization"
}
|
| spatial |
"{"type": "Point", "coordinates": [-89.535870552063, 34.379439746018]}"
|
| temporal | 2022-03-03/2023-06-06 |
| title | Data from: Comparison of sediment transport and bedforms from steady and unsteady flow hydrographs of similar flow rate |
