An introduction to the Meteor and ionospheric Irregularity Observation System and its preliminary results
Li Yi
Li Guozhu
Xie Haiyong
Sun Wenjie
Hu Lianhuan
Wu Zhi
Chen Wenzhi
Huang Zhaoguo
Wu Baoyuan
Zhao Xiukuan
Yu You
Chang Shoumin
Ning Baiqi
Liu Libo
Abstract：Meteoroids entering the Earth's atmosphere lose most of their mass during atmospheric passage and considerably disturb the background ionosphere.To elucidate better the effects of meteoroids on the near-Earth space environment,it is important to simultaneously observe various meteoroids and their related phenomena in the Earth's atmosphere.This study briefly describes a newly developed Meteor and ionospheric Irregularity Observa-tion System(MIOS),which consists of a phased-array radar,a bi-static all-sky radar,and a multi-station optical imaging and spectroscopy subsystem.The MIOS can capture the processes of ablation and evaporation of meteo-roids,creating luminous and ionization trails,and measure the properties of both the meteor trail and its corres-ponding meteoroid within a large field of view.Based on the MIOS,some observational modes and data pro-cessing methods have been developed,where the physical and chemical properties of meteoroids(including their velocity,mass,composition,and source region),meteor plasma head and trail irregularity and their structural evolu-tion,and the instantaneous neutral wind can be obtained.Using the MIOS measurements,a preliminary study of some of the characteristics of meteoroids,meteor plasma head,meteor plasma trail field-aligned and non-field-aligned irregularities,meteor flare and dust trail irregularity,and ionospheric irregularity is presented.
Keywords：meteormeteoroidmeteor plasma trail irregularityionospheric irregularityobservation system
Publication Date：2024-05-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：16( 292-307 )