川藏铁路廊道鲜水河地区音频大地电磁数据集（2020）

本次野外观测一共完成对鲜水河断裂带色拉哈断裂、木格措南断裂共计555个音频大电磁（AMT）测点的野外测量工作，与部分中铁二院已有的AMT数据集融合后，用于色拉哈断裂、木格措南断裂及其邻近区域浅层的精细三维电性结构成像工作。本次野外观测采用的MTU-5A仪器，每个测点记录时间超过半小时以上，每个测点包含一个由SSMT2000软件处理得到的EDI功率谱文件，其中包含坐标和各个频点的功率谱数据，可用于计算阻抗、视电阻率、相位及其统计观测误差。

This field campaign conducted 555 audio-magnetotelluric (AMT) measurement stations across the Selaha Fault and the southern Mugeduo Fault within the Xianshuihe Fault zone. After being integrated with a portion of the existing AMT datasets from China Railway Eryuan Engineering Group, the collected data will be applied to high-resolution 3D electrical structure imaging of the shallow subsurface surrounding the Selaha Fault, southern Mugeduo Fault and their adjacent areas. The MTU-5A instrument was employed for this survey. Each station has a recording duration of over 30 minutes, and contains one EDI power spectrum file processed via the SSMT2000 software. This file includes coordinate metadata and power spectrum data at all measured frequencies, which can be used to compute impedance, apparent resistivity, phase, and their statistical observation errors.

搜集汇总

背景与挑战

背景概述

该数据集包含川藏铁路廊道鲜水河地区555个音频大地电磁测点的测量数据，用于区域浅层三维电性结构成像，数据格式为EDI，需通过专业软件处理。