Response of the suspended sediment transport system to continental shelf dynamics |
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| Authors: | H A Karl D E Drake D A Cacchione |
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| Institution: | (1) U.S. Geological Survey, 94025 Menlo Park, CA |
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| Abstract: | Surface currents influenced by a wind-driven upwelling event in San Pedro Bay moved total suspended matter (TSM) confined
to the inner shelf on 19 April 1978 seaward, so that by 27 April surface TSM had increased over the outer shelf. Near-bottom
concentrations of TSM also increased across the shelf during this time. This is explained by sediment resuspended by large
surface waves being advected from the inner shelf seaward by the mean flow after this flow had turned from southeasterly to
southerly when upwelling ceased on 26 April. These complex shelf dynamics contribute to the off-shelf transport of mud to
the slope and deep basins. |
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