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Detection of solar flare using IGS network stations: case study for September 6, 2017

This research shows the viability of using GNSS (Global Navigation Satellite System) stations from IGS (International GNSS Service) network in the detection of solar flare. For this it was considered a flare of class X9.3 occurred on September 6, 2017 as a case study. If the flare is in the directio...

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Principais autores: Pereira, Vinícius Amadeu Stuani, Monico, João Francisco Galera, Camargo, Paulo de Oliveira
Formato: Artigo
Idioma: Inglês
Publicado em: Universidade Tecnológica Federal do Paraná (UTFPR) 2021
Acesso em linha: http://periodicos.utfpr.edu.br/rbgeo/article/view/13418
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spelling peri-article-134182022-10-19T00:36:19Z Detection of solar flare using IGS network stations: case study for September 6, 2017 Detecção de explosão solar utilizando estações da rede IGS: estudo de caso para 6 de setembro de 2017 Pereira, Vinícius Amadeu Stuani Monico, João Francisco Galera Camargo, Paulo de Oliveira Geociências, Geodésia ROTI Index; GNSS; Ionospheric Irregularites; Solar Flare Índice ROTI; GNSS; Irregularidades Ionosféricas; Explosão Solar This research shows the viability of using GNSS (Global Navigation Satellite System) stations from IGS (International GNSS Service) network in the detection of solar flare. For this it was considered a flare of class X9.3 occurred on September 6, 2017 as a case study. If the flare is in the direction of Earth, a series of events in the ionosphere may occur, which are called Sudden Ionospheric Disturbances (SID). Among the SID there is the Sudden Increases in the Total Electron Content (SITEC). This immediate variability of the TEC can be estimated from the ROTI index. Since the electromagnetic radiation takes about eight minutes to reach the Earth, the ROTI is presented as a great solar flare detector. In this sense, ROTI was estimated for several IGS stations. It was verified that there was an increase in ROTI in the period of the solar flare and in the equatorial region of the Sun-oriented Earth. Detection of an Earth-directed solar flare is of great interest for the GNSS positioning and Space Weather, since, probably after a flare, there will be geomagnetic and ionospheric storms within few days (as occurred on 7 and 8 September), which will deteriorate the positioning accuracy. A pesquisa apresenta a viabilidade de se utilizar estações GNSS (Global Navigation Satellite System) da rede IGS (International GNSS Service) na detecção de explosão solar. Para isso foi considerada como estudo de caso a explosão ocorrida no dia 6 de setembro de 2017, classificada como X9.3. Na situação da explosão estar direcionada a Terra, uma série de eventos pode ocorrer na ionosfera, os quais são denominados de Distúrbios Ionosféricos Súbitos (SID – Sudden Ionospheric Disturbances). Entre os tipos de SID há os Aumentos Súbitos no Conteúdo Total de Elétrons (SITEC – Sudden Increases in the Total Electron Content). Essa variabilidade imediata no TEC pode ser estimada a partir do índice ROTI. Uma vez que a radiação eletromagnética solar leva aproximadamente oito minutos para atingir a Terra, o índice ROTI apresenta-se como um interessante detector de explosão solar. Nesse sentido, o ROTI foi estimado utilizando dados de várias estações IGS. Foi verificado que houve um aumento nos valores de ROTI no período da explosão solar e na região equatorial orientada na direção do Sol. A detecção de uma explosão solar direcionada à Terra é de grande interesse para o posicionamento GNSS e o Clima Espacial, uma vez que, provavelmente após uma explosão, haverá tempestades geomagnéticas e ionosféricas num curto prazo de dias (conforme verificado nos dias 7 e 8 de setembro), o que deteriorará o posicionamento.  Universidade Tecnológica Federal do Paraná (UTFPR) INCT GNSS- NavAer CNPq FAPESP CAPES IBGE IGS 2021-06-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf http://periodicos.utfpr.edu.br/rbgeo/article/view/13418 10.3895/rbgeo.v9n2.13418 Revista Brasileira de Geomática; v. 9, n. 2 (2021); 103-119 Revista Brasileira de Geomática; v. 9, n. 2 (2021); 103-119 2317-4285 10.3895/rbgeo.v9n2 eng http://periodicos.utfpr.edu.br/rbgeo/article/view/13418/8369 Direitos autorais 2021 CC-BY http://creativecommons.org/licenses/by/4.0
institution Universidade Tecnológica Federal do Paraná
collection PERI
language Inglês
format Artigo
author Pereira, Vinícius Amadeu Stuani
Monico, João Francisco Galera
Camargo, Paulo de Oliveira
spellingShingle Pereira, Vinícius Amadeu Stuani
Monico, João Francisco Galera
Camargo, Paulo de Oliveira
Detection of solar flare using IGS network stations: case study for September 6, 2017
author_sort Pereira, Vinícius Amadeu Stuani
title Detection of solar flare using IGS network stations: case study for September 6, 2017
title_short Detection of solar flare using IGS network stations: case study for September 6, 2017
title_full Detection of solar flare using IGS network stations: case study for September 6, 2017
title_fullStr Detection of solar flare using IGS network stations: case study for September 6, 2017
title_full_unstemmed Detection of solar flare using IGS network stations: case study for September 6, 2017
title_sort detection of solar flare using igs network stations: case study for september 6, 2017
description This research shows the viability of using GNSS (Global Navigation Satellite System) stations from IGS (International GNSS Service) network in the detection of solar flare. For this it was considered a flare of class X9.3 occurred on September 6, 2017 as a case study. If the flare is in the direction of Earth, a series of events in the ionosphere may occur, which are called Sudden Ionospheric Disturbances (SID). Among the SID there is the Sudden Increases in the Total Electron Content (SITEC). This immediate variability of the TEC can be estimated from the ROTI index. Since the electromagnetic radiation takes about eight minutes to reach the Earth, the ROTI is presented as a great solar flare detector. In this sense, ROTI was estimated for several IGS stations. It was verified that there was an increase in ROTI in the period of the solar flare and in the equatorial region of the Sun-oriented Earth. Detection of an Earth-directed solar flare is of great interest for the GNSS positioning and Space Weather, since, probably after a flare, there will be geomagnetic and ionospheric storms within few days (as occurred on 7 and 8 September), which will deteriorate the positioning accuracy.
publisher Universidade Tecnológica Federal do Paraná (UTFPR)
publishDate 2021
url http://periodicos.utfpr.edu.br/rbgeo/article/view/13418
_version_ 1805451617091190784
score 10,814766

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