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|Application of seismic geophones to define sediment volume transport through the middle reach of the White River, Washington. (White River Bedload Monitoring)
We are interested in borrowing six 4.5 Hz 3-channel geophones and dataloggers to determine the timing and duration of bedload movement at three locations along the White River, a high energy gravel and sand river on Mount Rainier in Washington State. The goal is to identify changes in bedload transport timing and magnitude at pre-determined locations. The study reach is the subject of on-going debate about how the river is adjusting to a change in base level and whether the study reach is acting as a supply reach to downstream. Data will be collected through the winter high flow season. Bedload sediment is released from an upstream dam during winter high flows, which allows us to know the initial timing of the sediment transport downstream. Through repeat bathymetry collection upstream of the dam, we will be able to estimate the minimum volume of sediment released downstream. These data will support interpretation of the seismic data.
|Digital Object Identifier (DOI)
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