Precision of tidal datums in the Sacramento River, California
Bouquet, Timothy Alan
Thompson, Warren C.
Northrup, Donald E.
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A method is developed for extending computed 19-year tidal datums (1960-1978 epoch) throughout the ocean/river transition zone of the Sacramento River System using waterlevel measurements from two long-term reference stations, at San Francisco and Sacramento, and collected over an 18-month period at seven secondary tide measuring stations located throughout the transition zone. The method uses the standard procedure of the National Ocean Survey for comparison of simultaneous observations to determine 19-year tidal characteristics as a function of river level, from which are determined the 19-year datums. The accuracy of tidal datums, indicated by the standard deviation, is found to be within 0.1 foot in the lower bay system and within 0.2 foot upriver.
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