dc.contributor.author | Zhang, Shun-Rong | |
dc.contributor.author | Nishimura, Yukitoshi | |
dc.contributor.author | Vierinen, Juha-Pekka | |
dc.contributor.author | Lyons, Larry R. | |
dc.contributor.author | Knipp, Delores J. | |
dc.contributor.author | Gustavsson, Björn Johan | |
dc.contributor.author | Waghule, Bhagyashree V. | |
dc.contributor.author | Erickson, Philip J. | |
dc.contributor.author | Coster, Anthea J. | |
dc.contributor.author | Aa, Ercha | |
dc.contributor.author | Spicher, Andres | |
dc.date.accessioned | 2023-12-20T12:24:46Z | |
dc.date.available | 2023-12-20T12:24:46Z | |
dc.date.issued | 2023-09-29 | |
dc.description.abstract | A new observational phenomenon, named Simultaneous Global Ionospheric Density Disturbance
(SGD), is identified in GNSS total electron content (TEC) data during periods of three typical geospace
disturbances: a Coronal Mass Ejection-driven severe disturbance event, a high-speed stream event, and a minor
disturbance day with a maximum Kp of 4. SGDs occur frequently on dayside and dawn sectors, with a ∼1%
TEC increase. Notably, SGDs can occur under minor solar-geomagnetic disturbances. SGDs are likely caused
by penetration electric fields (PEFs) of solar-geomagnetic origin, as they are associated with Bz southward,
increased auroral AL/AU, and solar wind pressure enhancements. These findings offer new insights into
the nature of PEFs and their ionospheric impact while confirming some key earlier results obtained through
alternative methods. Importantly, the accessibility of extensive GNSS networks, with at least 6,000 globally
distributed receivers for ionospheric research, means that rich PEF information can be acquired, offering
researchers numerous opportunities to investigate geospace electrodynamics. | en_US |
dc.identifier.citation | Zhang, Nishimura, Vierinen, Lyons, Knipp, Gustavsson, Waghule, Erickson, Coster, Aa, Spicher. Simultaneous Global Ionospheric Disturbances Associated With Penetration Electric Fields During Intense and Minor Solar and Geomagnetic Disturbances. Geophysical Research Letters. 2023;50(19) | en_US |
dc.identifier.cristinID | FRIDAID 2193941 | |
dc.identifier.doi | 10.1029/2023GL104250 | |
dc.identifier.issn | 0094-8276 | |
dc.identifier.issn | 1944-8007 | |
dc.identifier.uri | https://hdl.handle.net/10037/32179 | |
dc.language.iso | eng | en_US |
dc.publisher | Wiley | en_US |
dc.relation.journal | Geophysical Research Letters | |
dc.rights.accessRights | openAccess | en_US |
dc.rights.holder | Copyright 2023 The Author(s) | en_US |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0 | en_US |
dc.rights | Attribution 4.0 International (CC BY 4.0) | en_US |
dc.title | Simultaneous Global Ionospheric Disturbances Associated With Penetration Electric Fields During Intense and Minor Solar and Geomagnetic Disturbances | en_US |
dc.type.version | publishedVersion | en_US |
dc.type | Journal article | en_US |
dc.type | Tidsskriftartikkel | en_US |
dc.type | Peer reviewed | en_US |