Xバンドレーダによる離岸流の観測(沿岸域の流れと物質循環(2),一般講演)

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概要

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• Averaged X-band radar images have been analyzed to detect occurrence of rip current. Radar images were collected at research pier HORS on a straight sandy coast. Rader images capture wave propagation, breaking and run-up motions. Hourly averaged images have been processed, in which characteristic cross shore patterns have been observed frequently. This pattern resembles to neck and head of a rip current captured in aerial images. Cross shore wave propagation speeds were smaller at zones where the patterns were observed suggesting existence of offshore-wards current. Wave and tide conditions were analyzed, showing the pattern formation was most frequent when the waves are high, shore normal incident, and tide level is low, which are equivalent to the known conditions of rip current occurrence.

• 日本流体力学会の論文
• 2007-08-06

著者

• 山川 泰司

  筑大システム情報工学研究科

• 武若 聡

  筑大システム情報工学研究科

関連論文

• 離岸流観測へのXバンドレーダ利用に関する検討
• Xバンドレーダによる離岸流の観測(沿岸域の流れと物質循環(2),一般講演)

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