TRANSPORT PROCESSES AROUND SAGAMI BAY AND SURUGA BAY USING A PARTICLE TRACKING MODEL

DOI Web Site 1 Citations 11 References
  • INOUE Takayoshi
    茨城大学 大学院理工学研究科都市システム工学専攻
  • MASUNAGA Eiji
    茨城大学 地球・地域環境共創機構
  • KOSAKO Taichi
    国立研究開発法人海上・港湾・航空技術研究所 港湾空港技術研究所 沿岸土砂管理研究グループ
  • ZHANG Xu
    神戸大学 大学院工学研究科
  • UCHIYAMA Yusuke
    神戸大学 大学院工学研究科市民工学専攻

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Other Title
  • 粒子追跡モデルを用いた相模湾及び駿河湾周辺の物質輸送過程の解析

Abstract

<p> This study investigated material transport and diffusion processes in Sagami Bay and Suruga Bay using the ROMS model with a 3-D Lagrange particle tracking model. Particles that flowed out from Sagami Bay were mainly transported to the north-east ward caused by the Kuroshio Current. For Suruga Bay, particles were mainly outflowed on the west side of the bay mouth and the out flowed particles were transported to the south-west ward due to a cyclonic eddies located off Suruga Bay. Vertical advective transport due to submesoscale eddies largely contributes to diffusive processes and particle transport toward offshore areas. Diffusions caused by the vertical advective term are much greater than that by horizontal diffusion (10-1 m2/s) implemented by a random walk model. Transport from the inner part toward out of Sagami Bay is much higher for that of Suruga Bay when the vertical advective transport is considered. Tides suppressed south-west (north-east) ward transport in Sagami Bay (Suruga Bay) and enhanced south-west ward transport in Suruga Bay.</p>

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