CIR-Driven Geomagnetic Storm and High-Intensity Long-Duration Continuous AE Activity (HILDCAA) Event: Effects on Brazilian Equatorial and Low-Latitude Ionosphere—Observations and Modeling

This paper investigates the effects of a Corotating Interaction Region (CIR)/High-Speed Stream (HSS)-driven geomagnetic storm from 13 to 23 October 2003, preceding the well-known Halloween storm. This moderate storm exhibited a prolonged recovery phase and persistent activity due to a High-Intensity...

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Bibliographic Details
Main Authors:	Samuel Abaidoo, Virginia Klausner, Claudia Maria Nicoli Candido, Valdir Gil Pillat, Stella Pires de Moraes Santos Ribeiro Godoy, Fabio Becker-Guedes, Josiely Aparecida do Espírito Santo Toledo, Laura Luiz Trigo
Format:	Article
Language:	English
Published:	MDPI AG 2025-04-01
Series:	Atmosphere
Subjects:	CIR/HSS-driven geomagnetic storm HILDCAA ionospheric parameters descending phase of solar activity prompt penetration electric fields disturbance dynamo
Online Access:	https://www.mdpi.com/2073-4433/16/5/499
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CIR-Driven Geomagnetic Storm and High-Intensity Long-Duration Continuous AE Activity (HILDCAA) Event: Effects on Brazilian Equatorial and Low-Latitude Ionosphere—Observations and Modeling

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