Examination of Solar Flare Monitoring using a Low Cost VLF Receiver

2021 7th International Conference on Space Science and Communication (IconSpace) Pub Date : 2021-11-23 DOI:10.1109/iconspace53224.2021.9768776

S. Bahari, Nurul Shazana Abdul Hamid, Mardina Abdullah, S. Abdullah

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Abstract

A low cost VFL receiver known as UKM-SID has been developed by Universiti Kebangsaan Malaysia. This system has been installed at UKM since 2015 to monitor the solar flares and has been used in outreach programmes with school students. Based on the capability of this system to monitor solar flares, analysis on the VLF signal strength observed by the UKM-SID receiver was therefore conducted. A month-long data for August 2015 was analyzed and compared with GOES-15 satellite. Result showed a repetitive and clear diurnal pattern with sunrise-sunset of VLF signal strength throughout the month of analysis. It was found that the VLF signal strength shown was in agreement with the solar flare events where there was an increasing value of the signals when solar flares occurred. A detailed comparison showed that only solar flares of class C4.8 and above (including M class solar flare) affected the VLF signal strength. The result suggests that different classes of solar flares have different effects on the VLF signal strength.

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使用低成本VLF接收器监测太阳耀斑的研究

马来西亚Kebangsaan大学开发了一种称为UKM-SID的低成本VFL接收器。自2015年以来，该系统已安装在UKM，用于监测太阳耀斑，并已用于与学生的外展计划。基于该系统监测太阳耀斑的能力，对UKM-SID接收机观测到的VLF信号强度进行了分析。分析了2015年8月的一个月数据，并与GOES-15卫星进行了比较。结果显示，在整个分析月中，VLF信号强度具有明显的日出-日落的重复日模式。结果发现，所示的VLF信号强度与太阳耀斑事件相一致，当太阳耀斑发生时，信号的值增加。详细对比表明，只有C4.8级及以上的太阳耀斑(包括M级太阳耀斑)影响VLF信号强度。结果表明，不同类型的太阳耀斑对VLF信号强度有不同的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2021 7th International Conference on Space Science and Communication (IconSpace)

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