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A Study on the Characteristics of the Ionospheric Gradient under Geomagnetic Perturbations

The Earth’s ionosphere is greatly influenced by geomagnetic activities, especially geomagnetic storms. During a geomagnetic storm, the ionosphere suffers many perturbations, leading to a spatial gradient that are neglected during geomagnetically quiet periods. An ionospheric gradient generates poten...

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Detalles Bibliográficos
Autores principales: Zhang, Yixin, Liu, Yang, Mei, Junlei, Zhang, Chunxi, Wang, Jinling
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7181138/
https://www.ncbi.nlm.nih.gov/pubmed/32218106
http://dx.doi.org/10.3390/s20071805
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author Zhang, Yixin
Liu, Yang
Mei, Junlei
Zhang, Chunxi
Wang, Jinling
author_facet Zhang, Yixin
Liu, Yang
Mei, Junlei
Zhang, Chunxi
Wang, Jinling
author_sort Zhang, Yixin
collection PubMed
description The Earth’s ionosphere is greatly influenced by geomagnetic activities, especially geomagnetic storms. During a geomagnetic storm, the ionosphere suffers many perturbations, leading to a spatial gradient that are neglected during geomagnetically quiet periods. An ionospheric gradient generates potential hazards for a ground-based argumentation system (GBAS) by enlarging the errors in the delay corrections between ground monitor stations and users. To address this problem, this work investigates the characteristics of the ionospheric gradient under geomagnetic storms. Global Navigation Satellite System (GNSS) observations from the continuously operating reference station (CORS) network were used to analyze the ionospheric gradients during the geomagnetic storm on 8 September 2017. The statistical behavior of the ionospheric gradient was further discussed. Experiments show that strong geomagnetic perturbations lead to large ionospheric gradients, and the gradients also vary with the geomagnetic location.
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spelling pubmed-71811382020-04-28 A Study on the Characteristics of the Ionospheric Gradient under Geomagnetic Perturbations Zhang, Yixin Liu, Yang Mei, Junlei Zhang, Chunxi Wang, Jinling Sensors (Basel) Article The Earth’s ionosphere is greatly influenced by geomagnetic activities, especially geomagnetic storms. During a geomagnetic storm, the ionosphere suffers many perturbations, leading to a spatial gradient that are neglected during geomagnetically quiet periods. An ionospheric gradient generates potential hazards for a ground-based argumentation system (GBAS) by enlarging the errors in the delay corrections between ground monitor stations and users. To address this problem, this work investigates the characteristics of the ionospheric gradient under geomagnetic storms. Global Navigation Satellite System (GNSS) observations from the continuously operating reference station (CORS) network were used to analyze the ionospheric gradients during the geomagnetic storm on 8 September 2017. The statistical behavior of the ionospheric gradient was further discussed. Experiments show that strong geomagnetic perturbations lead to large ionospheric gradients, and the gradients also vary with the geomagnetic location. MDPI 2020-03-25 /pmc/articles/PMC7181138/ /pubmed/32218106 http://dx.doi.org/10.3390/s20071805 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhang, Yixin
Liu, Yang
Mei, Junlei
Zhang, Chunxi
Wang, Jinling
A Study on the Characteristics of the Ionospheric Gradient under Geomagnetic Perturbations
title A Study on the Characteristics of the Ionospheric Gradient under Geomagnetic Perturbations
title_full A Study on the Characteristics of the Ionospheric Gradient under Geomagnetic Perturbations
title_fullStr A Study on the Characteristics of the Ionospheric Gradient under Geomagnetic Perturbations
title_full_unstemmed A Study on the Characteristics of the Ionospheric Gradient under Geomagnetic Perturbations
title_short A Study on the Characteristics of the Ionospheric Gradient under Geomagnetic Perturbations
title_sort study on the characteristics of the ionospheric gradient under geomagnetic perturbations
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7181138/
https://www.ncbi.nlm.nih.gov/pubmed/32218106
http://dx.doi.org/10.3390/s20071805
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