| Budget Amount *help |
¥3,930,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥330,000)
Fiscal Year 2007: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2006: ¥2,500,000 (Direct Cost: ¥2,500,000)
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| Research Abstract |
An X-band type ocean radar system and a wave model are applied to obtain data on a nearshore area, which is applied to analyze the physical process in this area.
The ocean radar system is one of the image radar systems employed to observe nearshore waves and current fields: wave directional spectrum, and sea surface flow field. In this study, with the ocean radar system, additional data in the nearshore are observed continuously in the target area: whitecaps coverage, shoreline deposition and bathymetry changes. Besides, the third generation wave mode is applied; therefore, not only the ordinal wave statistics, but also some wave parameters, e.g. energy dissipation due to wave breaking ds, were evaluated. Combining these two approaches, observation data with the ocean radar system and numerical simulation with the wave model, some kind of time-dependent data in the nearshore area can be storage, as for example: wind speed and direction, observed and simulated wave spectrum, sea surface current distribution, wave breaking energy, shoreline deposition, and bathymetry deposition. This dataset is useful for multidimensional analyses of the physical processes in the nearshore. The relation of the bathymetry deposition and the wave climate in the target area is analyzed in this study. The validity of the dataset for the multidimensional analysis of the physical process in the nearshore is probed.
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