| 講演要旨(和文) | | 港湾内や海浜域などに分布する金属製や非金属製の廃棄物の分布を電気探査で調査する目的で、新しく探査システムを開発した。実際に海底から回収された廃棄物を用いて水槽実験を行い、探査システムの特性試験を行った結果、ノイズ環境が悪い中、海水中の微小な電位差を精度良く測定できることが確認された。さらに、相関トモグラフィ解析の結果、廃棄物(金属パイプ)の位置に、低比抵抗と強い相関を示す結果が得られ、解析手法の有効性も確認できた。 |
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| | 講演要旨(英文) | | We developed a high accuracy marine electrical prospecting system for the purpose of investigating distribution of metal and non-metal waste deposits around harbor or beach area. As the result of the tank experiment of the new measurement system with actual waste collected by sea bottom, it can be confirmed that the accuracy of the measurement of electric potential changes is good in high electric noise environment. Correlation factor related to resistivity change under sea bottom obtained by towing-style measurement can be calculated quickly in correlation tomography. Two dimensional distribution of the correlation factor obtained by correlation tomography can indicate distribution of waste. |
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