Section outline

  •  As shown in the "Oshoro-Maru Ocean Observation Chart" below, there are a wide variety of oceanographic observation methods using ships, including towing (towing), placing on the seafloor (mooring), releasing from the ship into the ocean (drifting), and indirect measurement using sound waves, in addition to lowering instruments into the ocean with a wire rope extended from a stationary ship. In this section, we will explain the five main observation methods: (1) CTD observation, (2) biological sampling, (3) water sampling, (4) geological sample collection, and (5) acoustic measurement.



    おしょろ丸　海洋観測図
    おしょろ丸　海洋観測図　Oshoro-Maru Ocean Observation Chart
    北海道大学　Hokkaido University
    海洋調査部　Oshoro-maru Marine Science Department
    科学計量魚群探知機　Scientific Quantitative Fish Finder
    極深海音響測深器　Extreme-Deep-Sea Acoustic Bathymetric Instrument
    ソナードーム　Sonar Dome
    ドップラー式多層流向流速計(ADCP)　Acoustic Doppler Current Profiler
    マルチナロービーム音響測深機　Multi-narrow-beam echo sounder
    CTD採水システム　CTD sampling systems
    自己記録式CTD　Self-recording CTD
    NORPACネット　NORPAC net
    稚魚ネット　Fry nets
    ピンガー　Pinger
    マルチプルコアラ―　Multiple Coaler
    ピストンコアラ―　Piston Coaler
    海底地震計　Seafloor Seismograph
    ORIネット　ORI Net
    MTDネット　MTD Net
    ソリネット　Solinet
    漂流トラップ　Drift trap
    係留系　Mooring system