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Abstract
Eight months of continuous measurements of tidal current profiles with an acoustic Doppler current profiler (ADCP) were made in Carquinez Strait, California, during 1988 for the purpose of estimating long-term variations in vertical profiles of Eulerian residual currents. Salinity stratification near the ADCP deployment site also was analyzed. The strength of density-driven gravitational circulation and the amount of salinity stratification in the strait varied significantly over the spring-neap tidal cycle. Density currents and stratification were greater during neap tides when vertical mixing from the tide is at a minimum. Landward residual currents along the bottom were observed only during neap tides. Simulations made with a three-dimensional model to supplement the field measurements show a significant, tidally induced lateral variation in residual currents across the strait. The Stokes drift of 1-2 cm/s in the strait is small relative to the speed of gravitational currents.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Gravitational circulation in a tidal strait |
| ISBN | 0872628167 |
| Year Published | 1991 |
| Language | English |
| Publisher | Publ by ASCE |
| Publisher location | New York, NY, United States |
| Contributing office(s) | San Francisco Bay-Delta, Pacific Regional Director's Office |
| Larger Work Title | Proceedings - National Conference on Hydraulic Engineering |
| First page | 429 |
| Last page | 434 |
| Conference Title | Proceedings of the 1991 National Conference on Hydraulic Engineering |
| Conference Location | Nashville, TN, USA |
| Conference Date | 29 July 1991 through 2 August 1991 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |