中纬度地区粒子沉降和太阳耀斑对甚低频传播的影响分析

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摘要:

通过观测俄罗斯Alpha甚低频导航台到中纬度地区(新乡)之间的甚低频(VLF)信号的相位变化数据,发现在2002-07-17-2002-07-20期间,VLF信号发生了多次相位超前现象,观测到在2002-07-19和2002-07-20发生了高能粒子沉降事件,并分析出此次事件是由2002-07-17和2002-07-18发生的太阳耀斑引起.通过与美国发布的GOES卫星数据进行对比,发现两者的数据有很好的一致性.粒子沉降和太阳耀斑都会使甚低频信号的相位发生相位超前.粒子沉降大多数情况发生在极区,本次在新乡地区观测到高能粒子沉降,是一次极为宝贵的观测数据,对研究中纬度地区的高能粒子沉降有很大的作用.

By observing the very low frequency (VLF) VLF phase anomalies from the Russian Alpha navigation station in mid latitude regions (Xinxiang) , we find VLF signal phase leading phenomenon during July 17th, 2002 and July 20th, 2002. Then we observe high-energy particles sedimentation events in the mid latitude zone on July 19th,2002 and July 20th, 2002, So we analyze those events which are caused by solar flares occurring on July 17th, 2002 and July 18th, 2002. By comparing the GOES satellite data released by the US, we find that they are in good agreement with dates we observe.So VLF signal phase have a good correlation with the solar flare and high-energy particle sedimentation, it confirms the correctness of the analysis. The majority of particle sedimentation occur in the polar regions, Particle sedimentation observed in the Xinxiang is an extremely valuable data, it will have a great effect on studying the high-energy particle sedimentation of latitude regions.

作者:

牛有田 朴金龙 苏艳芳 张益萌

机构地区:

betway官方app 电子与电气工程学院河南省电磁波特征信息探测重点学科开放重点实验室

出处:

《betway官方app 学报:自然科学版》 CAS 北大核心 2017年第6期31-36,共6页

基金:

国家自然科学基金(49070217) 河南省重点科技攻关计划项目(162102210263)

关键词:

VLF信号 相位变化 高能粒子沉降 太阳耀斑 中纬度

VLF signal phase change high-energy particle sedimentation solar flares mid latitude

分类号:

TN98 [电子电信—信息与通信工程]


中纬度地区粒子沉降和太阳耀斑对甚低频传播的影响分析.pdf

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