Equatorial ionization anomaly response to lunar phase and stratospheric sudden warming

Abstract This study examines the ionosphere response to gravitational forces of the lunar phase and dynamical disturbances of the stratospheric sudden warmings (SSWs). The total electron content (TEC) of global ionosphere maps is employed to examine responses of the equatorial ionization anomaly (EI...

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Autores principales:	Tsung-Yu Wu, Jann-Yenq Liu, Loren C. Chang, Chien‐Hung Lin, Yi-Chung Chiu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/63b4a6437265446b9bcf001b79a1382a
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spelling	oai:doaj.org-article:63b4a6437265446b9bcf001b79a1382a2021-12-02T16:50:25ZEquatorial ionization anomaly response to lunar phase and stratospheric sudden warming10.1038/s41598-021-94326-x2045-2322https://doaj.org/article/63b4a6437265446b9bcf001b79a1382a2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94326-xhttps://doaj.org/toc/2045-2322Abstract This study examines the ionosphere response to gravitational forces of the lunar phase and dynamical disturbances of the stratospheric sudden warmings (SSWs). The total electron content (TEC) of global ionosphere maps is employed to examine responses of the equatorial ionization anomaly (EIA) crests to lunar phases and twelve SSW events during 2000–2013. The most prominent feature in the ionosphere is the EIA, characterized by two enhanced TEC crests at low latitudes straddling the magnetic equator, which can be used to observe ionospheric plasma dynamics and structures. Results show that the EIA crest appearance time on new/full moons (first/third quarters) leads (lags) that of the overall 14-year average, which causes a pattern of TEC morning enhancements (suppressions) and afternoon suppressions (enhancements). A statistical analysis shows that SSWs can also significantly cause the early appearance of EIA crests, regardless of the lunar phase. Thus, both lunar phase and SSWs can significantly modulate the appearance time of EIA crest and ionospheric plasma dynamics and structures.Tsung-Yu WuJann-Yenq LiuLoren C. ChangChien‐Hung LinYi-Chung ChiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tsung-Yu Wu Jann-Yenq Liu Loren C. Chang Chien‐Hung Lin Yi-Chung Chiu Equatorial ionization anomaly response to lunar phase and stratospheric sudden warming
description	Abstract This study examines the ionosphere response to gravitational forces of the lunar phase and dynamical disturbances of the stratospheric sudden warmings (SSWs). The total electron content (TEC) of global ionosphere maps is employed to examine responses of the equatorial ionization anomaly (EIA) crests to lunar phases and twelve SSW events during 2000–2013. The most prominent feature in the ionosphere is the EIA, characterized by two enhanced TEC crests at low latitudes straddling the magnetic equator, which can be used to observe ionospheric plasma dynamics and structures. Results show that the EIA crest appearance time on new/full moons (first/third quarters) leads (lags) that of the overall 14-year average, which causes a pattern of TEC morning enhancements (suppressions) and afternoon suppressions (enhancements). A statistical analysis shows that SSWs can also significantly cause the early appearance of EIA crests, regardless of the lunar phase. Thus, both lunar phase and SSWs can significantly modulate the appearance time of EIA crest and ionospheric plasma dynamics and structures.
format	article
author	Tsung-Yu Wu Jann-Yenq Liu Loren C. Chang Chien‐Hung Lin Yi-Chung Chiu
author_facet	Tsung-Yu Wu Jann-Yenq Liu Loren C. Chang Chien‐Hung Lin Yi-Chung Chiu
author_sort	Tsung-Yu Wu
title	Equatorial ionization anomaly response to lunar phase and stratospheric sudden warming
title_short	Equatorial ionization anomaly response to lunar phase and stratospheric sudden warming
title_full	Equatorial ionization anomaly response to lunar phase and stratospheric sudden warming
title_fullStr	Equatorial ionization anomaly response to lunar phase and stratospheric sudden warming
title_full_unstemmed	Equatorial ionization anomaly response to lunar phase and stratospheric sudden warming
title_sort	equatorial ionization anomaly response to lunar phase and stratospheric sudden warming
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/63b4a6437265446b9bcf001b79a1382a
work_keys_str_mv	AT tsungyuwu equatorialionizationanomalyresponsetolunarphaseandstratosphericsuddenwarming AT jannyenqliu equatorialionizationanomalyresponsetolunarphaseandstratosphericsuddenwarming AT lorencchang equatorialionizationanomalyresponsetolunarphaseandstratosphericsuddenwarming AT chienhunglin equatorialionizationanomalyresponsetolunarphaseandstratosphericsuddenwarming AT yichungchiu equatorialionizationanomalyresponsetolunarphaseandstratosphericsuddenwarming
_version_	1718383041011777536

Equatorial ionization anomaly response to lunar phase and stratospheric sudden warming

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