[Updated on Apr. 18] Integration of CiNii Articles into CiNii Research

BASIC STUDY OF LONG WAVE PROPAGATION OVER A CONTINENTAL SHELF

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  • 陸棚上の長周期波の伝搬に関する基礎的研究
  • リクダナ ジョウ ノ チョウ シュウキハ ノ デンパン ニ カンスル キソテキ ケンキュウ

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Abstract

 This study investigates characteristic changes of edge waves by a topographic obstacle like a cape experimentally and numerically. The experiments were conducted in a small wave tank with setting a step-type shelf to measure two dimensional water surface fluctuations. The dispersion relationships and on-offshore wave heights of the edge wave components are found to be consistent with those described by the edge wave theory. In the numerical analysis where a concentric circle topography for the shoreline and shelf edge was set, characteristics of edge wave propagation and on-offshore distributions of edge wave height were analyzed. These results are found to reproduce the characteristics expressed by the edge wave theory. The characteristic changes of edge wave celerity and plane wave height distribution by a topographic obstacle are discussed based on the experimental and numerical results by changing experimental conditions and dimension of a model obstacle systematically.

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