DURAZO, Reginaldo; FLORES-VIDAL, Xavier; CASTRO, Ruben; OCAMPO-TORRES, Francisco J.; SAAVEDRA, Johanna; RODRIGUEZ PADILLA, Isaac; LARRANAGA, Marco

doi:10.1016/j.csr.2024.105171

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CONTINENTAL SHELF RESEARCH. 2024-02

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Depending on dimensions, orientation and topographic features, the circulation of semi-enclosed seas adjacent to regions of coastal upwelling are strongly influenced by their interaction with a shelf upwelling jet of adjacent waters. A special case are square bays, where opening is about the same size as length, and are bordered by headlands at the entrance. This study analyzed surface currents measured between 2009 and 2020 with high-frequency (HF) radar in Todos Santos Bay, a square bay located in northwestern México, to obtain mean and seasonal surface circulation patterns. HF radar measurements indicate that the average circulation pattern within the bay is cyclonic, with water of the California Current (CC) entering primarily as a coastal jet through the northern mouth of the bay. The similarity of monthly average maps with the long-term average suggests the cyclonic circulation persists year-round. Scale analysis demonstrates that given the size of the bay, only one eddy, primarily controlled by inertia, is dominantly formed inside. The mean cyclonic circulation defines the bay as an upwelling shadow.< Leer menos

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Surface circulation in Todos Santos Bay, Baja California, Mexico

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