Two-dimensional imaging of plasma density structures in auroral ionosphere

We present multi-instrumental observation of auroral ionosphere by using the EISCAT UHF radar, all sky imager, GNSS satellites and Synthetic Aperture Radar (SAR) satellite. Plasma irregularities generated by auroral precipitating particles are imaged by SAR phase data in high resolution (less than k...

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Bibliographic Details
Main Authors: Sato, Hiroatsu, Kim, Junsu, Ogawa, Yasunobu
Format: Conference Object
Language:unknown
Published: 2022
Subjects:
Online Access:https://elib.dlr.de/187971/
https://www.space.irfu.se/workshops/LPMR-EISCAT/
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spelling ftdlr:oai:elib.dlr.de:187971 2024-05-19T07:39:38+00:00 Two-dimensional imaging of plasma density structures in auroral ionosphere Sato, Hiroatsu Kim, Junsu Ogawa, Yasunobu 2022 https://elib.dlr.de/187971/ https://www.space.irfu.se/workshops/LPMR-EISCAT/ unknown Sato, Hiroatsu und Kim, Junsu und Ogawa, Yasunobu (2022) Two-dimensional imaging of plasma density structures in auroral ionosphere. 20th International EISCAT Symposium 2022, 2022-08-15 - 2022-08-19, Eskilstuna, Sweden. Solar-Terrestrische Kopplungsprozesse Konferenzbeitrag NonPeerReviewed 2022 ftdlr 2024-04-25T01:02:02Z We present multi-instrumental observation of auroral ionosphere by using the EISCAT UHF radar, all sky imager, GNSS satellites and Synthetic Aperture Radar (SAR) satellite. Plasma irregularities generated by auroral precipitating particles are imaged by SAR phase data in high resolution (less than kilometer) in the two dimensional form over the area of several tens of kilometers. The observed localized density irregularities are aligned in east-west direction near the location of 558-nm optical emission. The results suggest that highly structured plasma density gradients exist primarily near the edge of the precipitation region. The level of density enhancement is approximately 5 TECU (Total Electron Content Unit) from a GNSS receiver collocated at the UHF radar. We show that L-band satellite data provides complemental observation for the current and future EISCAT/EISCAT3D facilities to study high-latitude ionosphere in multi-scale. Conference Object EISCAT German Aerospace Center: elib - DLR electronic library
institution Open Polar
collection German Aerospace Center: elib - DLR electronic library
op_collection_id ftdlr
language unknown
topic Solar-Terrestrische Kopplungsprozesse
spellingShingle Solar-Terrestrische Kopplungsprozesse
Sato, Hiroatsu
Kim, Junsu
Ogawa, Yasunobu
Two-dimensional imaging of plasma density structures in auroral ionosphere
topic_facet Solar-Terrestrische Kopplungsprozesse
description We present multi-instrumental observation of auroral ionosphere by using the EISCAT UHF radar, all sky imager, GNSS satellites and Synthetic Aperture Radar (SAR) satellite. Plasma irregularities generated by auroral precipitating particles are imaged by SAR phase data in high resolution (less than kilometer) in the two dimensional form over the area of several tens of kilometers. The observed localized density irregularities are aligned in east-west direction near the location of 558-nm optical emission. The results suggest that highly structured plasma density gradients exist primarily near the edge of the precipitation region. The level of density enhancement is approximately 5 TECU (Total Electron Content Unit) from a GNSS receiver collocated at the UHF radar. We show that L-band satellite data provides complemental observation for the current and future EISCAT/EISCAT3D facilities to study high-latitude ionosphere in multi-scale.
format Conference Object
author Sato, Hiroatsu
Kim, Junsu
Ogawa, Yasunobu
author_facet Sato, Hiroatsu
Kim, Junsu
Ogawa, Yasunobu
author_sort Sato, Hiroatsu
title Two-dimensional imaging of plasma density structures in auroral ionosphere
title_short Two-dimensional imaging of plasma density structures in auroral ionosphere
title_full Two-dimensional imaging of plasma density structures in auroral ionosphere
title_fullStr Two-dimensional imaging of plasma density structures in auroral ionosphere
title_full_unstemmed Two-dimensional imaging of plasma density structures in auroral ionosphere
title_sort two-dimensional imaging of plasma density structures in auroral ionosphere
publishDate 2022
url https://elib.dlr.de/187971/
https://www.space.irfu.se/workshops/LPMR-EISCAT/
genre EISCAT
genre_facet EISCAT
op_relation Sato, Hiroatsu und Kim, Junsu und Ogawa, Yasunobu (2022) Two-dimensional imaging of plasma density structures in auroral ionosphere. 20th International EISCAT Symposium 2022, 2022-08-15 - 2022-08-19, Eskilstuna, Sweden.
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