Solar Flares and the Intricate Response of Earth's Outer Geomagnetic Field Variation-Reference-Cited by-同舟云学术

Solar Flares and the Intricate Response of Earth's Outer Geomagnetic Field Variation

Published:2024-09 Issue:9 Volume:129 Page:
ISSN:2169-9380
Container-title:Journal of Geophysical Research: Space Physics
language:en
Short-container-title:JGR Space Physics

Author:

Fagundes P. R.¹^ORCID,Pillat V. G.¹^ORCID,Habarulema J. B.²³⁴^ORCID,Tardelli A.¹^ORCID,Muella M. T. A. H.¹^ORCID

Affiliation:

1. Laboratorio de Fısica e Astronomia Universidade do Vale do Paraıba (UNIVAP) Sao Jose Dos Campos Brazil

2. South African National Space Agency (SANSA) Hermanus South Africa

3. Department of Physics and Electronics Rhodes University Makhanda South Africa

4. Centre for Space Research Physics Department North‐West University Potchefstroom South Africa

Abstract

AbstractIn this study, we investigate the intricate electrodynamics of the Earth's horizontal component of the geomagnetic field (ΔH) in response to two significant solar flares (SF) occurring on 03 July and 28 October 2021. These flares are classified as X1.59 and X1.0, respectively. It is noted that the ΔH follows the X‐ray variation during the SF, but there is a time lag of a few minutes between the X‐ray and ΔH. A possible explanation for the time lag is the neutral atmosphere and ionosphere coupling, via ion drag.

Funder

Fundação de Amparo à Pesquisa do Estado de São Paulo

Conselho Nacional de Desenvolvimento Científico e Tecnológico

National Research Foundation

Publisher

American Geophysical Union (AGU)

Link

https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2024JA032903

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