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Article: Formation of Double Tongues of Ionization During the 17 March 2013 Geomagnetic Storm

TitleFormation of Double Tongues of Ionization During the 17 March 2013 Geomagnetic Storm
Authors
Keywordspolar ionosphere
tongue of ionization
geomagnetic storm
model simulation
Issue Date2019
PublisherAmerican Geophysical Union. The Journal's web site is located at https://agupubs.onlinelibrary.wiley.com/journal/21562202a
Citation
Journal of Geophysical Research: Space Physics, 2019, v. 124 n. 12, p. 10619-10630 How to Cite?
AbstractDuring geomagnetic disturbances, enhanced high-latitude convection transports ionospheric F-2-region plasma from the dayside midlatitude region into the polar cap, leading to structures such as tongues of ionization (TOIs) and patches. In this study, we investigate the dynamic evolution of TOIs during the 17 March 2013 storm using a high-resolution coupled thermosphere-ionosphere-electrodynamics model and Defense Meteorological Satellite Program (DMSP) satellite observations. Both model and observations show the occurrence of two TOIs simultaneously. One originates in the morning convection cell and the other one in the evening cell. DMSP observations also show similar signatures of two density peaks inside the polar cap. Further diagnostic analysis and control simulations show that the morning TOI is associated with auroral precipitation and is transported into the polar cap region by the convection electric field. This study reveals that the plasma transport in both the afternoon and morning sectors play critical roles in the dynamic evolution of polar ionospheric structures.
Persistent Identifierhttp://hdl.handle.net/10722/284048
ISSN
2019 Impact Factor: 2.799

 

DC FieldValueLanguage
dc.contributor.authorDang, T-
dc.contributor.authorLei, J-
dc.contributor.authorWang, W-
dc.contributor.authorWang, B-
dc.contributor.authorZhang, B-
dc.contributor.authorLiu, J-
dc.contributor.authorBurns, A-
dc.contributor.authorNishimura, Y-
dc.date.accessioned2020-07-20T05:55:41Z-
dc.date.available2020-07-20T05:55:41Z-
dc.date.issued2019-
dc.identifier.citationJournal of Geophysical Research: Space Physics, 2019, v. 124 n. 12, p. 10619-10630-
dc.identifier.issn2169-9380-
dc.identifier.urihttp://hdl.handle.net/10722/284048-
dc.description.abstractDuring geomagnetic disturbances, enhanced high-latitude convection transports ionospheric F-2-region plasma from the dayside midlatitude region into the polar cap, leading to structures such as tongues of ionization (TOIs) and patches. In this study, we investigate the dynamic evolution of TOIs during the 17 March 2013 storm using a high-resolution coupled thermosphere-ionosphere-electrodynamics model and Defense Meteorological Satellite Program (DMSP) satellite observations. Both model and observations show the occurrence of two TOIs simultaneously. One originates in the morning convection cell and the other one in the evening cell. DMSP observations also show similar signatures of two density peaks inside the polar cap. Further diagnostic analysis and control simulations show that the morning TOI is associated with auroral precipitation and is transported into the polar cap region by the convection electric field. This study reveals that the plasma transport in both the afternoon and morning sectors play critical roles in the dynamic evolution of polar ionospheric structures.-
dc.languageeng-
dc.publisherAmerican Geophysical Union. The Journal's web site is located at https://agupubs.onlinelibrary.wiley.com/journal/21562202a-
dc.relation.ispartofJournal of Geophysical Research: Space Physics-
dc.rightsJournal of Geophysical Research: Space Physics. Copyright © American Geophysical Union.-
dc.rights©[2019]. American Geophysical Union. All Rights Reserved. This article is available at https://doi.org/10.1029/2019ja027268-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectpolar ionosphere-
dc.subjecttongue of ionization-
dc.subjectgeomagnetic storm-
dc.subjectmodel simulation-
dc.titleFormation of Double Tongues of Ionization During the 17 March 2013 Geomagnetic Storm-
dc.typeArticle-
dc.identifier.emailZhang, B: binzh@hku.hk-
dc.identifier.authorityZhang, B=rp02366-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1029/2019ja027268-
dc.identifier.scopuseid_2-s2.0-85076927264-
dc.identifier.hkuros310829-
dc.identifier.volume124-
dc.identifier.issue12-
dc.identifier.spage10619-
dc.identifier.epage10630-
dc.publisher.placeUnited States-

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