Abstract
The wave observation by a marine radar has been made 30 days in total for 3 years from 1991 to 1993 at the west coast of the Awaji Island. In 11-run observations, the wave directions and wavelengths of prevailing waves could be obtained from the data of radar sea clutter. The wave directions and wavelengths obtained by the 2-dimensional spectral analysis were not different from visually observed wave directions by 7 degrees and estimated wavelengths by 6m, respectively. The results of the directional 1-dimensional spectral analysis were also reasonably consistent with them of the visual observation and the 2-dimensional spectral analysis. Although the results of the directional 1-dimensional spectral analysis were less than them of the 2-dimensional spectral analysis in accuracy, the method of the directional 1-dimensional spectral analysis is useful in the automatic selection of the analyzing area for the 2-dimensional spectral analysis in the wave analysis system.
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