Articles with "equatorial ionization" as a keyword



Earthquake aftereffects in the Equatorial Ionization Anomaly region under geomagnetic quiet and storm conditions

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Published in 2017 at "Advances in Space Research"

DOI: 10.1016/j.asr.2017.03.039

Abstract: Abstract In addition to multi-scale spatio-temporal trends that shape the ionosphere variability, the ionosphere responds to the disturbances that are solar, geomagnetic and seismic in origin. In this study, post-seismic ionospheric disturbances are investigated retrospectively… read more here.

Keywords: quiet storm; geomagnetic quiet; equatorial ionization; ionization anomaly ... See more keywords

On the variability of the Equatorial Ionization Anomaly Trough over Indian region: A novel analysis using Beacon TEC measurements

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Published in 2020 at "Advances in Space Research"

DOI: 10.1016/j.asr.2020.04.040

Abstract: Abstract A novel method using single station beacon Relative Slant Total Electron Content (RSTEC) measurements is proposed to estimate the location of Equatorial Ionization Anomaly Trough (EAT). The feasibility of this method is established based… read more here.

Keywords: anomaly trough; novel; location; equatorial ionization ... See more keywords

Recent developments in the understanding of equatorial ionization anomaly: A review

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Published in 2017 at "Journal of Atmospheric and Solar-Terrestrial Physics"

DOI: 10.1016/j.jastp.2017.06.020

Abstract: Abstract A brief review of the recent developments in the understanding of the equatorial plasma fountain (EPF) and equatorial ionization anomaly (EIA) under quiet and active conditions is presented. It is clarified that (1) the… read more here.

Keywords: plasma; recent developments; understanding equatorial; developments understanding ... See more keywords

Morphology of the equatorial ionization anomaly in Africa and Middle East due to a sudden stratospheric warming event

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Published in 2019 at "Journal of Atmospheric and Solar-Terrestrial Physics"

DOI: 10.1016/j.jastp.2019.01.006

Abstract: Abstract Using total electron content (TEC) data deduced from 18 Global Positioning System (GPS) receivers in Africa and Middle East, we investigated the morphology of the equatorial ionization anomaly (EIA) and its underlying variations before,… read more here.

Keywords: middle east; morphology equatorial; equatorial ionization; ionization anomaly ... See more keywords

Occurrence of Ionospheric Equatorial Ionization Anomaly at 840 km Height Observed by the DMSP Satellites at Solar Maximum Dusk

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Published in 2021 at "Space Weather"

DOI: 10.1029/2020sw002690

Abstract: Although it is accepted that the electron density double peaks of the Equatorial Ionization Anomaly (EIA) generally merge into a single‐peak with increasing altitude and thus the signature of EIA becomes inconspicuous in the higher… read more here.

Keywords: equatorial ionization; ionization anomaly; observed dmsp; solar maximum ... See more keywords

Responses of the African and American Equatorial Ionization Anomaly (EIA) to 2014 Arctic SSW Events

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Published in 2021 at "Space Weather"

DOI: 10.1029/2021sw002812

Abstract: Aside from the influence of forcing from above on the ionosphere during space weather, forcing from below also have significant influence on the ionosphere. This study investigates responses of the equatorial ionization anomaly (EIA) in… read more here.

Keywords: sector; equatorial ionization; ionization anomaly; ssw events ... See more keywords

Equatorial Ionization Anomaly Crest Position and Width Modeling

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Published in 2025 at "Space Weather"

DOI: 10.1029/2025sw004479

Abstract: Knowing the locations and widths of the Northern and Southern Equatorial Ionization Anomaly (EIA) crests is essential for characterizing the spatiotemporal and solar activity variations of the low latitude ionosphere. The crest region is characterized… read more here.

Keywords: ionization anomaly; navigation; positions widths; equatorial ionization ... See more keywords

Four‐Peak Structure on Equatorial Ionization Anomaly Crests During the May 2024 Geomagnetic Storms

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Published in 2025 at "Space Weather"

DOI: 10.1029/2025sw004542

Abstract: This study investigates the four‐peak electron density structure in the Equatorial Ionization Anomaly (EIA) during the intense geomagnetic storms of 10–20 May 2024, utilizing dayside data at ∼500 km from the China Seismo‐Electromagnetic Satellite (CSES‐01).… read more here.

Keywords: ionization anomaly; structure equatorial; peak; four peak ... See more keywords

Coupling study of ionospheric anomalies and equatorial ionization anomalies before the 2024 Mw 7.3 Hualien earthquake

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Published in 2025 at "Geomatics, Natural Hazards and Risk"

DOI: 10.1080/19475705.2025.2565410

Abstract: ABSTRACT This study explores the potential link between pre-earthquake ionospheric anomalies and the equatorial ionization anomaly (EIA) in the lead-up to the 2024 Mw 7.3 Hualien earthquake. Using multi-source data – including GPS observations from… read more here.

Keywords: 2024 hualien; anomalies equatorial; equatorial ionization; hualien earthquake ... See more keywords