[M-IS17] ガスハイドレートと地球環境・資源科学

[MIS17-08] 過去5年間の和歌山県潮岬沖のプルームの観察

*青山 千春¹、水上 知香¹ (1.国立大学法人東京海洋大学)

キーワード：プルーム、計量魚群探知機、潮岬

Numerous plumes are seeping naturally from seafloor at 1700m depth at offshore Shinomisaki of Wakayama prefecture. The author has been collaborating with Wakayama prefecture to conduct observations of these plumes. Scientific quantitative echo sounder onboard “KINOKUNI” (99ton), a research vessel of Wakayama Prefectural Fisheries Experiment Station, was used to examine the relationship between volume backscattering strength (SV) and the change in tide level, as well as submarine topography. The author will report the examination from the observation results.