A magnetotelluric dataset in the Duobaoshan island arc region

A magnetotelluric dataset in the Duobaoshan island arc region. This dataset is used for 3D inversion of unstructured grids. 57 sites are arranged, and the average acquisition time is greater than 20h. It contains full-impedance magnetotelluric data at 18 frequency in the period rang of 0.1- 0.001s. The file MT3D_BFGS_124.vtk is the inversion results obtained after 124 iterations.本数据集为多宝山岛弧带地区大地电磁（magnetotelluric）数据集，可用于非结构化网格三维反演。共布设57个测点，平均采集时长超过20小时。数据集包含周期范围0.1~0.001秒内18个频率点的全阻抗大地电磁数据。文件MT3D_BFGS_124.vtk为经124次迭代后得到的反演结果。