超音波で探る!; 津軽海峡・音景色

Investigation using accoustic signal; Sound-scene in the Tsugaru Strait

大西 光代*; 伊藤 集通 

Onishi, Mitsuyo*; Ito, Toshimichi

原子力機構と海洋科学振興財団が、東日本海フェリーの協力を得て、共同研究として実施した津軽海峡における音響ドップラー流行流速分布計(ADCP)を用いた測流について、音響を用いた流れの計測の原理,計測結果の一部、及び津軽海峡における流速測定の環境科学における意義について、小・中学生向きに平易に解説する。

This document is written for primary and secondary school student to explain the measurement of ocean flow using acoustic signal. In this document, principle and ferry mounted method of Acoustic Doppler Current Profiler (ADCP) measurement are introduced, and a part of results obtained through the measurement in the Tsugaru Strait is shown. Additionally, the importance of the measurement in the study of the Japan Sea is mentioned shortly. The measurement was carried out under the cooperative research between JAEA and Japan Marine Science Foundation getting a voluntary help from Higashi-Nihon Ferry Co. Ltd..