2021年全球电离层电子密度样本数据

2021年全球电离层电子密度样本数据提供了全球范围内的格网点处的电离层电子密度信息，该文件逐天生成，主要包含了地图起始时间和结束时间、历元间隔、地球平均半径、经纬度以及高度的起始值和截止值等。该数据产生方式为加工处理数据；数据源为IGS提供的IONEX产品。引入利用IRI-2016模型作为背景场并结合电离层电子密度三维层析成像技术反演计算，精确计算电离层电子密度值并进行格网化。目前数据质量良好，并且定期更新，该数据可为用户提供全球电离层电子密度信息，用于GNSS电离层扰动监测、电离层空间天气监测等，具有非常高的应用价值。

2021 Global Ionospheric Electron Density Sample Dataset provides ionospheric electron density information at grid points across the globe. It is generated on a daily basis, and mainly includes the start and end times of the map, epoch interval, Earth's mean radius, as well as the start and end values of longitude, latitude and altitude. This dataset is produced via post-processing, with the data source being the IONEX products supplied by IGS. It adopts the IRI-2016 model as the background field, combined with three-dimensional ionospheric electron density tomography technology for inversion calculation, to accurately derive the ionospheric electron density values and perform gridding processing. Currently, the dataset has good data quality and is updated regularly. It can provide users with global ionospheric electron density information, which can be used for GNSS ionospheric disturbance monitoring, ionospheric space weather monitoring and other scenarios, with extremely high application value.

搜集汇总

背景与挑战

背景概述

该数据集是2021年全球电离层电子密度样本数据，提供全球网格点上的电离层电子密度信息，空间分辨率为纬度2.5度、经度5度。数据基于IGS的IONEX产品，结合IRI-2016模型和三维层析成像技术生成，质量良好且更新规律，主要用于GNSS电离层扰动监测和电离层空间天气监测，具有高应用价值。