Wavelike movement of bedload sediment,East Fork River,Wyoming |
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| Authors: | Robert H Meade |
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| Institution: | (1) U S Geological Survey, 80225 Denver, Colorado |
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| Abstract: | Bedload is moved down the East Fork River in distinct wavelike pulses that have the form of composite dune fields The moving
material consists mostly of coarse sand and fine gravel The wavelengths of the pulses are about 500–600 m, a distance that
is predetermined by the pattern of stoage of bed sediment in the river during low water As the river discharge increases,
the bed sediment is scoured from the storage areas, and it is moved onto and across the interventing riffles As the river
discharge decreases, the bed sediment is scoured off the riffles and moved into the next storage area downstream Each successive
pulse of water discharge sets into motion a wave of bedload that continues to move unitil it reaches the next storage area |
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