Suspended-sediment dynamics in the tidal reach of a San Francisco Bay tributary
California State Coastal Conservancy
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Abstract
To better understand suspended-sediment transport in a tidal slough adjacent to a large wetland restoration project, we deployed continuously-measuring temperature, salinity, depth, turbidity, and velocity sensors since 2010, and added a dissolved-oxygen sensor in 2012, at a near-bottom location in Alviso Slough (Alviso, California USA). Alviso Slough is the downstream reach of the Guadalupe River and flows into the far southern end of San Francisco Bay. River flow is influenced by the Mediterranean climate, with high flows correlated to episodic winter storms (~85 m3 s-1) and low base flow during the summer (~0.85 m3 s-1). Storms and associated runoff have the greatest influence on sediment flux. Strong spring tides promote upstream sediment flux and weak neap tides have only a small net flux. During neap tides, stratification likely suppresses sediment transport during weaker flood and ebb tides.
Suggested Citation
Shellenbarger, G., Downing-Kunz, M.A., Schoellhamer, D., 2015, Suspended-sediment dynamics in the tidal reach of a San Francisco Bay tributary, in Proceedings of the 17th physics of estuaries and coastal seas (PECS) conference, Porto de Galinhas, Pernambuco, Brazil, 19–24 October 2014, 4 p.
Study Area
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Suspended-sediment dynamics in the tidal reach of a San Francisco Bay tributary |
| Year Published | 2015 |
| Language | English |
| Contributing office(s) | California Water Science Center |
| Description | 4 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Conference publication |
| Larger Work Title | Proceedings of the 17th physics of estuaries and coastal seas (PECS) conference |
| Conference Title | 17th physics of estuaries and coastal seas (PECS) conference |
| Conference Location | Porto de Galinhas, Pernambuco, Brazil |
| Conference Date | 19–24 October 2014 |
| Country | United States |
| State | California |
| Other Geospatial | Southern reach of San Francisco Bay |