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USGS CMG InfoBank: Computer Model

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Comment: 20:29 - 21:13 (00:44)
Source: Annenberg/CPB Resources - Earth Revealed - 19. Running Water I: Rivers, Erosion and Deposition
Keywords: river, "Old River", dam, "U.S. Army Corps of Engineers", "Old River Control Project", river, "Mississippi River", "Atchafalaya River", "navigational lock", flow-rate, "Red Eye Crossing", "river channel", modeling, WES, "Waterways Experiment Station", discharge, "flow velocity", sediment, deposition

Our transcription: Using data from the moveable bed model and from the field, WES engineers have created a computer model which calculates the movement of sediment through Red Eye Crossing.
It mimics the sediment's behavior through time as water discharge and velocities change.
The light blue area is deep water, the dark blue, shallow water, which corresponds to sediment buildup.
As the model goes from low discharge levels to high discharge and back to low again, the dark blue area grows in size indicating that sediment is moving in, causing the deep water channel to narrow.

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