유한 선형 자기 쌍극자에 대한 수치 모델링 및 현장 모형실험에 의한 자력 변화율 비교 연구

A Study on the Comparison of Magnetic Gradient Obtained by the Forward Modeling and the Field Test for a Finite Line of Dipoles

  A study on the comparison of magnetic gradient obtained by the forward modeling and the field test for a finite line of dipoles was carried out. From the field test horizontal gradient of horizontal component, that of vertical component, and that of total magnetic field were measured by using an 1-m long anchor layed on the ground, For the numerical modeling it was assumed that an 1-m long line of dipoles with declination of 45°, inclination of -5° are buried in the depth of 0.1 m pointing the North. From this study we can conclude that the anchor can be used as a model of finite line of dipoles, and the horizontal gradients in the direction of declination of the dipoles were maximized. In addition, it is recommended that the survey direction coincide with the declination of the anomalous object of a line type.