A new 3-D inversion algorithm for magnetic total field anomalies
A new 3-D inversion algorithm for magnetic total field anomalies
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DOI：
10.1111/j.1365-246x.1991.tb05703.x
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发表时间：
2007-04
影响因子：
2.8
通讯作者：
H. Zeyen;J. Pous
中科院分区：
文献类型：
--
作者：
H. Zeyen;J. Pous
摘要提出了一种新的三维磁场异常反演解释算法。该算法利用贝叶斯定理，允许包含模型参数的先验信息，并以概率的方式处理这些信息以及测量数据。这样就得到了一种比较快速和稳定的方法。该模型由垂直矩形棱镜组成，其顶、底、磁化率、剩余磁化强度和方向为可变参数。几个综合的例子展示了该算法提供的可能性。最后给出了对西班牙东北部的一个异常的解释，该异常显示了一个倾斜于当地地磁场的强剩余磁化分量。
SUMMARY A new 3-D inversion algorithm for the interpretation of magnetic total field anomalies is presented. Using Bayes' theorem the algorithm allows the inclusion of a priori information of model parameters and to treat this information as well as the measured data in a probabilistic manner. In this way a rather fast and stable method is obtained. The models consist of a system of vertical rectangular prisms with its top, base, susceptibility and remanent magnetization intensity and direction as variable parameters. Several synthetic examples show the possibilities that the algorithm offers. Finally the interpretation of an anomaly measured in NE Spain is presented, which shows a strong remanent magnetization component oblique to the local geomagnetic field.