Scientia Marina, Vol 63, No 2 (1999)

An experimental method to investigate the role of low frequency phenomena in the generation of tidal residues


https://doi.org/10.3989/scimar.1999.63n2165

Miguel Bruno
Faculty of Marine Sciences. Polígono del Río San Pedro, Spain

Rafael Mañanes
Faculty of Marine Sciences. Polígono del Río San Pedro, Spain

José Juan Alonso
Faculty of Marine Sciences. Polígono del Río San Pedro, Spain

Alfredo Izquierdo
Faculty of Marine Sciences. Polígono del Río San Pedro, Spain

Oscar Álvarez
Faculty of Marine Sciences. Polígono del Río San Pedro, Spain

Abstract


In this work a method to estimate the contribution to tidal residues originated by non-linear interaction between tides and low frequency phenomena is presented. In order to perform the validation, the method is applied on current data series taken from the Strait of Gibraltar which allows us to find a clear relationship between current tidal residues and low frequency fluctuations in the flow, which may be explained in terms of the non-linear interaction between tidal and sub-inertial signals in the current velocity.

Keywords


tidal hydrodynamics; shallow water tides; non-linear interactions

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