A Multivariable Study of a Traveling Ionosphere Disturbance Using the Arecibo Incoherent Scatter Radar.
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| Title: | A Multivariable Study of a Traveling Ionosphere Disturbance Using the Arecibo Incoherent Scatter Radar. |
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| Authors: | Zhou, Qihou1 (AUTHOR) liy27@miamioh.edu, Li, Yanlin1 (AUTHOR), Gong, Yun2 (AUTHOR) |
| Source: | Remote Sensing. Nov2024, Vol. 16 Issue 21, p4104. 10p. |
| Subjects: | Gravity waves, Incoherent scattering, Ionosphere, Ion temperature, Inductive effect |
| Abstract: | We present the first simultaneous observations of a traveling ionosphere wave (TID) event, measuring electron concentration ( N e ), vertical plasma drift ( V z ), and ion and electron temperatures ( T i , T e ) using the Arecibo incoherent scatter radar. A TID with a period of 135 min was evident in all four state variables in the thermosphere. The amplitudes of V z and relative T i fluctuations show only small height variations from 200 to 500 km and their vertical wavelengths increase with altitude. The T e fluctuation shows different characteristics from EISCAT in both phase and amplitude. When the geomagnetic dip angle is 45°, half of the driving gravity wave's (GW's) equatorward velocity is mapped to V z . This meridional-to-vertical velocity coupling amplifies GW's effect in N e through vertical transport. The amplifying and anisotropic effects of the geomagnetic field explain the ubiquitous presence of TIDs and their preferred equatorward propagation direction in the geomagnetic mid-latitudes, as well as the midnight collapse phenomenon observed at Arecibo. [ABSTRACT FROM AUTHOR] |
| Copyright of Remote Sensing is the property of MDPI 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: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 180782614 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A Multivariable Study of a Traveling Ionosphere Disturbance Using the Arecibo Incoherent Scatter Radar. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhou%2C+Qihou%22">Zhou, Qihou</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> liy27@miamioh.edu</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Yanlin%22">Li, Yanlin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gong%2C+Yun%22">Gong, Yun</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Remote+Sensing%22">Remote Sensing</searchLink>. Nov2024, Vol. 16 Issue 21, p4104. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Gravity+waves%22">Gravity waves</searchLink><br /><searchLink fieldCode="DE" term="%22Incoherent+scattering%22">Incoherent scattering</searchLink><br /><searchLink fieldCode="DE" term="%22Ionosphere%22">Ionosphere</searchLink><br /><searchLink fieldCode="DE" term="%22Ion+temperature%22">Ion temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Inductive+effect%22">Inductive effect</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: We present the first simultaneous observations of a traveling ionosphere wave (TID) event, measuring electron concentration ( N e ), vertical plasma drift ( V z ), and ion and electron temperatures ( T i , T e ) using the Arecibo incoherent scatter radar. A TID with a period of 135 min was evident in all four state variables in the thermosphere. The amplitudes of V z and relative T i fluctuations show only small height variations from 200 to 500 km and their vertical wavelengths increase with altitude. The T e fluctuation shows different characteristics from EISCAT in both phase and amplitude. When the geomagnetic dip angle is 45°, half of the driving gravity wave's (GW's) equatorward velocity is mapped to V z . This meridional-to-vertical velocity coupling amplifies GW's effect in N e through vertical transport. The amplifying and anisotropic effects of the geomagnetic field explain the ubiquitous presence of TIDs and their preferred equatorward propagation direction in the geomagnetic mid-latitudes, as well as the midnight collapse phenomenon observed at Arecibo. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Remote Sensing is the property of MDPI 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: 10.3390/rs16214104 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 4104 Subjects: – SubjectFull: Gravity waves Type: general – SubjectFull: Incoherent scattering Type: general – SubjectFull: Ionosphere Type: general – SubjectFull: Ion temperature Type: general – SubjectFull: Inductive effect Type: general Titles: – TitleFull: A Multivariable Study of a Traveling Ionosphere Disturbance Using the Arecibo Incoherent Scatter Radar. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhou, Qihou – PersonEntity: Name: NameFull: Li, Yanlin – PersonEntity: Name: NameFull: Gong, Yun IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 20724292 Numbering: – Type: volume Value: 16 – Type: issue Value: 21 Titles: – TitleFull: Remote Sensing Type: main |
| ResultId | 1 |
