子午工程数据资源概述

A summary of data resources produced by the Meridian Project

东半球空间环境地基综合监测子午链项目(简称"子午工程"),是近地空间环境地基监测网络系统,沿东半球东经120°子午线附近和北纬30°附近的15个台站部署了地磁(电)监测设备、常规无线电监测设备、大型无线电监测设备、宇宙线监测设备、光学监测设备和行星际监测设备,连续监测地球表面20-30公里以上直到几百公里的中高层大气、电离层和磁层,以及十几个地球半径以外的行星际空间,获得地磁场、电场、中高层大气的风场、密度、温度、成分,电离层、磁层和行星际太阳风的速度等空间环境参数,共有163个数据集,时间覆盖2010年至今。子午工程的数据,为研究我国上空空间环境特征,空间天气事件的子午链传播,以及地球空间各个圈层之间的耦合过程等提供了重要的数据支持,有力地推动了现有各类地球空间模型的发展,为我国载人航天和探月工程等航天任务等提供了大量的业务数据支撑。

The Ground-based Space Environment Monitoring Network(Meridian Project for short) is a ground-based monitoring network system for the near-earth space environment. Geomagnetic(electrical) monitoring instruments, conventional radio monitoring instruments, large-scale radio monitoring instruments, cosmic ray monitoring instruments, optical monitoring equipment and interplanetary monitoring instruments have been deployed in 15 stations along 120°E and 30°N to continuously monitor the middle and upper atmosphere, ionosphere and magnetosphere from 20–30 km above the Earth’s surface to hundreds of kilometers above the Earth’s surface, as well as the interplanetary space that is a dozen Earth radii away from the Earth’s surface. Space environment data such as wind field, density, temperature, and composition of the middle and upper atmosphere, and the bulk speed in the ionosphere, magnetosphere, and interplanetary solar wind have been collected from 2010 to today, and a total of 163 datasets have been obtained. The data of the Meridian Project provides significant support for the studies on the characteristics of the space environment over China, the propagation of space weather events along the meridian chain, and the coupling between different domains of geospace environment, promotes the development of various existing geospatial models, and provides a large amount of business data for manned spaceflight and lunar exploration missions in China.