Parallel Electrical Conductivity in the Topside Ionosphere Derived From Swarm Measurements.
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| Title: | Parallel Electrical Conductivity in the Topside Ionosphere Derived From Swarm Measurements. |
|---|---|
| Authors: | Giannattasio, F.1 fabio.giannattasio@ingv.it, De Michelis, P.1, Pignalberi, A.1, Coco, I.1, Consolini, G.2, Pezzopane, M.1, Tozzi, R.1 |
| Source: | Journal of Geophysical Research. Space Physics. Feb2021, Vol. 126 Issue 2, p1-19. 19p. |
| Subject Terms: | Planetary ionospheres, Magnetosphere, Electric conductivity, Geomagnetic field lines |
| Company/Entity: | European Space Agency |
| Abstract: | Our knowledge of the physical properties of the topside ionosphere is still incomplete. A key point still not fully understood is how field-aligned currents are generated, evolve and dissipate in the ionosphere. Answering to this question is fundamental for a better understanding of the mechanisms regulating the coupling between magnetosphere and ionosphere and to shed light on the physical processes inherent to space weather events occurring in the Earth's ionosphere. In this framework a relevant role is played by the ionospheric conductivity. The purpose of this study is to analyze the main properties of the electrical conductivity parallel to the geomagnetic field from a climatological point of view. The statistical study of the electrical conductivity is proposed using four years of in-situ electron density and temperature measurements at 1 Hz acquired by the European Space Agency's Swarm A satellite. Variations due to seasonal effects are also investigated. Finally, starting from observations and comparing our results with those obtained using International Reference Ionosphere model, we give a first estimation of the conductivity mainly due to particle precipitation. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Geophysical Research. Space Physics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | GreenFILE |
| FullText | Text: Availability: 0 |
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| Header | DbId: 8gh DbLabel: GreenFILE An: 149767927 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Parallel Electrical Conductivity in the Topside Ionosphere Derived From Swarm Measurements. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Giannattasio%2C+F%2E%22">Giannattasio, F.</searchLink><relatesTo>1</relatesTo><i> fabio.giannattasio@ingv.it</i><br /><searchLink fieldCode="AR" term="%22De+Michelis%2C+P%2E%22">De Michelis, P.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Pignalberi%2C+A%2E%22">Pignalberi, A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Coco%2C+I%2E%22">Coco, I.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Consolini%2C+G%2E%22">Consolini, G.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Pezzopane%2C+M%2E%22">Pezzopane, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Tozzi%2C+R%2E%22">Tozzi, R.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Geophysical+Research%2E+Space+Physics%22">Journal of Geophysical Research. Space Physics</searchLink>. Feb2021, Vol. 126 Issue 2, p1-19. 19p. – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Planetary+ionospheres%22">Planetary ionospheres</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetosphere%22">Magnetosphere</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+conductivity%22">Electric conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Geomagnetic+field+lines%22">Geomagnetic field lines</searchLink> – Name: SubjectCompany Label: Company/Entity Group: Su Data: <searchLink fieldCode="DE" term="%22European+Space+Agency%22">European Space Agency</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Our knowledge of the physical properties of the topside ionosphere is still incomplete. A key point still not fully understood is how field-aligned currents are generated, evolve and dissipate in the ionosphere. Answering to this question is fundamental for a better understanding of the mechanisms regulating the coupling between magnetosphere and ionosphere and to shed light on the physical processes inherent to space weather events occurring in the Earth's ionosphere. In this framework a relevant role is played by the ionospheric conductivity. The purpose of this study is to analyze the main properties of the electrical conductivity parallel to the geomagnetic field from a climatological point of view. The statistical study of the electrical conductivity is proposed using four years of in-situ electron density and temperature measurements at 1 Hz acquired by the European Space Agency's Swarm A satellite. Variations due to seasonal effects are also investigated. Finally, starting from observations and comparing our results with those obtained using International Reference Ionosphere model, we give a first estimation of the conductivity mainly due to particle precipitation. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Geophysical Research. Space Physics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1029/2020JA028452 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 19 StartPage: 1 Subjects: – SubjectFull: Planetary ionospheres Type: general – SubjectFull: Magnetosphere Type: general – SubjectFull: Electric conductivity Type: general – SubjectFull: Geomagnetic field lines Type: general – SubjectFull: European Space Agency Type: general Titles: – TitleFull: Parallel Electrical Conductivity in the Topside Ionosphere Derived From Swarm Measurements. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Giannattasio, F. – PersonEntity: Name: NameFull: De Michelis, P. – PersonEntity: Name: NameFull: Pignalberi, A. – PersonEntity: Name: NameFull: Coco, I. – PersonEntity: Name: NameFull: Consolini, G. – PersonEntity: Name: NameFull: Pezzopane, M. – PersonEntity: Name: NameFull: Tozzi, R. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2021 Type: published Y: 2021 Identifiers: – Type: issn-print Value: 21699380 Numbering: – Type: volume Value: 126 – Type: issue Value: 2 Titles: – TitleFull: Journal of Geophysical Research. Space Physics Type: main |
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