seabed drifter

Japanese: seabed drifter(英語表記)seabeddrifter
seabed drifter

...Even today, drifting postcards sealed in plastic containers are widely used to study inland sea currents. Seabed drifters, which are collected with bottom trawl nets, are used to study ocean currents near the seabed. Satellite-tracked drifters, ship-based radar-tracked buoys, and acoustic-tracked underwater buoys are also used, which can determine the drifting position.

*Some of the terminology that mentions "seabed drifter" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…現在もプラスチックの容器に封じた漂流はがきが,内海の海流調査に多用されている。底引漁網で回収する漂流クラゲseabed drifterは海底近くの海流の調査に用いる。漂流中の位置を知ることのできる,人工衛星で追跡するブイ(satellite‐tracked drifter)や船舶のレーダーで追跡するブイ,音響信号で追跡する水中ブイ(sofar buoy,swallow’s float)なども使われる。…

※「seabed drifter」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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