| 講演要旨(和文) | | 近年,鉱物・エネルギー資源を確保するために国際的な資源開発競争が強まる中,海底熱水鉱床等の海底資源に再び関心が集まっている.我々は,こうした海底資源の賦存量を高精度に推定するために,AUVやROV,深海曳航体を用いた磁気・電気探査装置の開発に取り組んでいる.本開発は,文部科学省の委託研究として2008年8月より開始し,現在,試作機の性能試験と改良を行っている.磁気探査装置については,AUV「うらしま」,「よこすかディープ・トウ」,専用曳航フレームを用いた海域試験,およびヘリコプターを用いた空中試験を実施した.また,電気探査装置については,小型調査船「北斗」およびROV「かいこう7000II」を用いた海域試験を実施した.これらの試験から,各プラットフォームにおける基礎データを取得し,概ね良好な結果を得た.本講演では,上記の試験を中心に開発の現状について報告する. |
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| | 講演要旨(英文) | | Seabed resources like sea-floor hydrothermal deposits have recently focused renewed attention behind the international situation for natural resources. From such a standpoint, we have been developing new electrical and magnetic exploration systems by using AUV, ROV, and deep-tow system in order to estimate structures of the sea floor in detail. Since this study started with the financial support of the MEXT in 2008, we made magnetic and electrical exploration systems on an experimental basis. The magnetic exploration system was tested using AUV Urashima and towing vehicle Yokosuka Deep-Tow in the Kumano Basin, using a helicopter above Aogashima volcano, and using titanium towing frame specially designed for a magnetometer in the Bayonnaise submarine caldera area. The electrical exploration system was tested using the R/V Hokuto of Tokai University off Miho in Suruga Bay, and using ROV Kaiko 7000II in the Japan Trench. These tests gave us basic data of the systems for the platforms and the confirmation of their performance. They showed that the systems approached to practical tools. We proceed with the development on basis of the trial results. We will report the present state of the development of the systems. |
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