| Application of a spectrum analyzer in forecasting ocean swell in southern California coastal waters - :6551 | National Weather Service (NWS)
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Application of a spectrum analyzer in forecasting ocean swell in southern California coastal waters
  • Published Date:
    1979
Filetype[PDF-1.53 MB]


Details:
  • Personal Authors:
  • Corporate Authors:
    United States, National Weather Service., Western Region,
  • Description:
    The definitions and concepts of spectral ocean wave forecasting methods are reviewed and applied to the interpretation of trace records of the Snodgrass Spectrum Analyzer. Proper interpretation of the trace enables the prediction of arrival time and size of heaviest surf. Tables derived from the Neumann Spectrum are fitted to the eight frequency channels of the analyzer and used to construct a hypothetical whole spectrum from a partially arrived swell spectrum. Case studies of a North Pacific winter storm, an Eastern Pacific Hurricane, and a Southern Hemisphere storm are made.

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