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- W2094530651 abstract "심해탐사를 위해 새롭게 개발된 소형 루프형 해양 전자탐사 시스템의 실해역 실험 결과의 반응 양상을 적분방정식 기반의 3차원 모델링을 통하여 분석하였다. 수심 약 300 m 해저환경에서 획득한 금속 이상체의 전자기 반응 양상에 대한 영향인자를 분석하기 위해 이상체의 크기와 모양을 다르게 설정하여 모델링을 수행하였다. 모델링 결과 분석을 통하여 이상체의 모양이 크기보다 반응 양상에 더 큰 영향을 주는 것을 확인하였다. 탐사고도와 주파수에 따른 반응값 변화를 알아보기 위해 모델링을 수행하였고 이를 통해 일정한 탐사 고도 유지의 필요성과 주파수 대역에 따른 허수부의 민감도를 확인하였다. 또한 탐사 고도와 주파수에 따른 반응값을 단면 그래프로 나타내어 시스템에 사용되는 주파수 대역에 대한 적절한 탐사고도를 제시하였다. 본 연구를 통해 도출된 결과는 해저 열수광상 실해역 탐사 설계 시 매개변수 설정에 있어 유용한 정보를 줄 것으로 예상된다. We analyzed response patterns of test field data acquired with new small loop electromagnetic (EM) system using three-dimensional (3D) electromagnetic modeling code. The size and shape of a conductor was adopted as experimental parameters for EM modeling to understand influencing factors of the response patterns due to a metallic object on the seafloor. Obtaining the responses for four models of difference sizes and shapes through 3D EM modeling, we confirmed that the shape of the object have a more critical factor on the response pattern than size. We also calculated ppm values with respect to different altitudes of the sensor and source frequencies. The modeling results show that the consistency of sensor altitude is important and imaginary part of ppm response is more sensitive than real part. We also visualized the contour map of the real and imaginary part of ppm value as a function of frequency and altitude so that we can estimate proper altitude for source frequency band of our survey system. The results of this paper are anticipated to give proper parameters in survey construction for seafloor massive sulfide deposit." @default.
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- W2094530651 date "2014-02-28" @default.
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- W2094530651 title "Response Analysis of Data Acquired by Marine Loop Electromagnetic System Using Three-Dimensional Modeling Based on Integral Equation" @default.
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- W2094530651 doi "https://doi.org/10.7582/gge.2014.17.1.021" @default.
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