Bedload estimated using hydrophones, Trinity River, California

The U.S. Geological Survey (USGS) installed acoustic bedload monitoring systems at four sites along the Trinity River below Lewiston Dam to record the noise generated by mobilized bed material, known as sediment generated noise (SGN) (Geay and others, 2017). The four sites are: Trinity River at Lewiston (TRAL, 11525500), Trinity River above Grass Valley Creek (TRGVC, 11525630), Trinity River at Limekiln Gulch (TRLG, 11525655) and Trinity River at Douglas City (TRDC, 11525854). These sites were selected because bedload measurements are frequently made at these locations during restoration flows as part of monitoring done by the Trinity River Restoration Program (TRRP). Monitoring took place in the spring of 2015, 2016, 2017 and 2019. SGN is presented as a time-series of acoustic power in units of microPascals squared. Also presented here are paired bedload and acoustic power datasets. Bedload data were collected by GMA Hydrology Inc. (Pittman, 2016; Pittman, 2017; Pittman, 2018; Pittman 2020).

References

Geay, T., Belleudy, P., Gervaise, C., Habersack, H., Aigner, J., 2017, Passive acoustic monitoring of bed load discharge in a large gravel bed river, Journal of Geophysical Research Letters, v122, p. 528-545, https://doi.org/10.1002/2016JF004112.

Pittman, S., 2016, 2015 Trinity River sediment transport monitoring final report, (Report to the Trinity River Restoration Program (TRRP) and the U.S. Bureau of Reclamation under contract R14C00122), GMA Hydrology, Inc., Placerville, California, www.trrp.net/library/document?id=2276.

Pittman, S., 2017, 2016 Trinity River sediment transport monitoring final report, (Report to the Trinity River Restoration Program (TRRP) and the U.S. Bureau of Reclamation under contract R14C00122), GMA Hydrology, Inc., Placerville, California, www.trrp.net/library/document?id=2317.

Pittman, S., 2018, 2017 Trinity River sediment transport monitoring final report, (Report to the Trinity River Restoration Program (TRRP) and the U.S. Bureau of Reclamation under contract R14C00122), GMA Hydrology, Inc., Placerville, California, www.trrp.net/library/document?id=2361.

Pittman, S., 2020, 2019 Trinity River sediment transport monitoring report, (Report for the Trinity River Restoration Program (TRRP), GMA Hydrology Inc., Arcata, California, www.trrp.net/library/document?id=2477.