空间科学学报2017，Vol.37Issue(6)：702-709,8.DOI:10.11728/cjss2017.06.702
海南VHF雷达观测到的低纬F区电离层场向不规则体事件分析
Analysis of Low Latitude F Region Field-aligned Irregularity Events Observed with Hainan VHF Radar
摘要
Abstract
Hainan VHF radar has the rapid scan observation capability of two-dimensional imaging of ionospheric irregularities,which is essential for investigating the generation and evolution of FieldAligned Irregularities (FAI).In this study,the ionospheric irregularities observed by Hainan VHF radar on the night of Oct.27,2011 have been analyzed.The main results show that the observed irregularities can be divided into three stages.In the initial formation stage,the irregularities appear very weak and develop very slowly,which mainly expand upward and last for about 14 minutes.In the expansion and enhancement stage,the irregularities rapidly expand and develop both in upward and zonal directions,which last for about 14 minutes.The intensity of irregularities early increases rapidly and later slightly decreases.The spatial scale of irregularities exceeds more than 200km.In the stage of eastward drift and leaving,the intensity of irregularities further decreases,and the expansion area reaches the maximum.It mainly shows the eastward drift and last for nearly 30 minutes.This observation firstly gives the formation and development processes of ionospheric irregularities over the Hainan region,which seems to be quite different from that of other regions.关键词
海南VHF雷达/二维成像/电离层不规则体/形成和发展Key words
Hainan VHF radar/Two-dimensional imaging/Ionospheric irregularities/Formation and development分类
天文与地球科学引用本文复制引用
尚社平,史建魁,闫敬业,杨国涛,燕春晓,王霄,吴琼之..海南VHF雷达观测到的低纬F区电离层场向不规则体事件分析[J].空间科学学报,2017,37(6):702-709,8.基金项目
国家自然科学基金项目资助(41474136,41474137) （41474136,41474137）
