西藏当雄县羊易地热田大地电磁数据集（2021）

该数据集为项目组在西藏当雄县羊易地热田采集的大地电磁法（MT）原始观测数据，数据格式为EDI，共包含36个文件。该数据集共包含3条MT剖面，测线间距大约为1 km，测点间距约 500 米。野外数据采集设备采用中国科学院研制的新型SEP地面电磁探测系统。在每个 MT 测点，使用不极化电极测量电场的两个水平分量Ex（南北向），Ey（东西向），使用磁传感器测量磁场的三个分量Hx（南北向）、Hy（东西向）、Hz（铅锤向）。每个测点观测时间均超过10小时，有效频率范围320 Hz~0.001 Hz。通过对该数据集的预处理及反演，可获羊易地热田深部10千米深度范围的电性结构，为调查区内深部热源以及控热、导热构造的位置及规模提供依据。

This dataset contains 36 raw magnetotelluric (MT) observation files collected by the research team at the Yangdi Geothermal Field, Damxung County, Tibet, China, with all files in EDI format. This dataset includes three MT profiles, with a line spacing of approximately 1 km and a station spacing of about 500 meters. The field data acquisition equipment adopted is the novel SEP surface electromagnetic exploration system developed by the Chinese Academy of Sciences. At each MT station, two horizontal components of the electric field, Ex (north-south direction) and Ey (east-west direction), were measured using non-polarizing electrodes, while three components of the magnetic field, Hx (north-south), Hy (east-west), and Hz (vertical direction), were measured using magnetic sensors. The observation duration at each station exceeded 10 hours, with an effective frequency range of 320 Hz to 0.001 Hz. Through preprocessing and inversion of this dataset, the electrical structure of the Yangdi Geothermal Field within the 10 km deep depth range can be obtained, which provides a basis for investigating the locations and scales of deep heat sources as well as heat-controlling and heat-conducting structures in the study area.

搜集汇总

背景与挑战

背景概述

该数据集包含西藏当雄县羊易地热田2021年采集的大地电磁法（MT）原始观测数据，共36个EDI格式文件，覆盖3条MT剖面，旨在揭示地热田深部10千米范围内的电性结构，为研究深部热源及构造提供依据。