Magnetic Etna 2021 (EMFC_2021)

The data represent the total intensity (F) of the Earth's magnetic field (or geomagnetic field) acquired continuously by the stations of the Etna permanent network from XX to YY. All the stations are located along a South-North profile that crosses the summit area of ​​Etna and are equipped with Overhauser effect scalar magnetometers with a sensitivity of 0.01 nT. The network also includes a reference station located in Cesarò on the Nebrodi Mountains. The data are synchronized by a GPS and is acquired with a sampling rate of 5-10 seconds. Time series of geomagnetic data allow to observe and evaluate the anomalous variations of the magnetic field associated with the modifications of the stress field and of the thermodynamic state produced by magma rising in the more superficial layers of the volcano. The continuous data analysis therefore contributes to the evaluation of the spatio-temporal evolution of the dynamics in progress.本数据集收录埃特纳（Etna）永久观测台网各台站于XX至YY时段连续采集的地球磁场（geomagnetic field，又称地磁场）总强度（F）数据。所有台站沿横穿埃特纳火山顶部区域的南北向剖面布设，均配备灵敏度为0.01纳特斯拉（nT）的奥弗豪泽效应（Overhauser effect）标量磁力仪。该台网还包含一座位于内布罗迪山脉切萨罗（Cesarò）的基准台站。所有数据通过全球定位系统（GPS）实现同步，采样率为5至10秒。地磁数据时间序列可用于观测与评估由火山浅层岩浆上涌引发的应力场及热力学状态改变所伴随的磁场异常变化。因此，对这类连续数据开展分析，有助于评估当前火山动力学过程的时空演化规律。

搜集汇总

背景与挑战

背景概述

该数据集由意大利国家地球物理与火山学研究所（INGV）发布，包含2021年埃特纳火山永久网络站点连续采集的地球磁场总强度数据，用于监测火山活动引起的磁场异常变化。数据采用高灵敏度Overhauser效应标量磁力仪采集，采样率为5-10秒，覆盖全年时间范围，文件格式详细记录了磁场强度、传感器配置和环境参数。