An EISCAT UHF/ESR Experiment That Explains How Ionospheric Irregularities Induce GPS Phase Fluctuations at Auroral and Polar Latitudes
A limitation to the use of Global Navigation Satellite System (GNSS) for precise and real-time services is introduced by irregularities in the ionospheric plasma density. An EISCAT UHF/ESR experiment was conducted to characterize the effect of electron density irregularities on temporal fluctuations...
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ftdlr:oai:elib.dlr.de:143901 2023-07-23T04:19:05+02:00 An EISCAT UHF/ESR Experiment That Explains How Ionospheric Irregularities Induce GPS Phase Fluctuations at Auroral and Polar Latitudes John, Habila Forte, Biagio Astin, Ivan Allbrook, T. Arnold, A. Vani, Bruno Häggström, Ingemar Sato, Hiroatsu 2021-08 application/pdf https://elib.dlr.de/143901/ https://elib.dlr.de/143901/1/2020RS007236.pdf https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020RS007236 en eng Wiley https://elib.dlr.de/143901/1/2020RS007236.pdf John, Habila und Forte, Biagio und Astin, Ivan und Allbrook, T. und Arnold, A. und Vani, Bruno und Häggström, Ingemar und Sato, Hiroatsu (2021) An EISCAT UHF/ESR Experiment That Explains How Ionospheric Irregularities Induce GPS Phase Fluctuations at Auroral and Polar Latitudes. Radio Science. Wiley. doi:10.1029/2020RS007236 <https://doi.org/10.1029/2020RS007236>. ISSN 0048-6604. cc_by Institut für Solar-Terrestrische Physik Zeitschriftenbeitrag PeerReviewed 2021 ftdlr https://doi.org/10.1029/2020RS007236 2023-07-02T23:20:16Z A limitation to the use of Global Navigation Satellite System (GNSS) for precise and real-time services is introduced by irregularities in the ionospheric plasma density. An EISCAT UHF/ESR experiment was conducted to characterize the effect of electron density irregularities on temporal fluctuations in TEC along directions transverse to GPS ray paths in the high latitudes ionosphere. Two representative case studies are described: Enhancements in temporal TEC fluctuations originating (a) in the auroral ionosphere following auroral particle precipitation and (b) in the polar ionosphere following the drift of a polar patch as well as particle precipitation. The results indicate that the origin of enhancements in TEC fluctuations is due to the propagation through large-to-medium scale irregularities (i.e., ranging from few kilometres in the E region to few tens of kilometres in the F region) and occurring over spatial distances of up to approximately 400 km in the E region and up to approximately 800 km in the F region with a patchy distribution. Furthermore, the results indicate that enhancements in TEC fluctuations produced by polar plasma patches and particle precipitation occur over similar temporal scales, thus explaining the overall observation of higher phase scintillation indices in the high-latitude ionosphere. The similarity in the temporal scales over which enhancements in TEC fluctuations occur in the presence of both particle precipitation and plasma patches suggests an intrinsic limitation in the monitoring and tracking of plasma patches through ground GNSS observations. Article in Journal/Newspaper EISCAT German Aerospace Center: elib - DLR electronic library Radio Science 56 9 |
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Open Polar |
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German Aerospace Center: elib - DLR electronic library |
op_collection_id |
ftdlr |
language |
English |
topic |
Institut für Solar-Terrestrische Physik |
spellingShingle |
Institut für Solar-Terrestrische Physik John, Habila Forte, Biagio Astin, Ivan Allbrook, T. Arnold, A. Vani, Bruno Häggström, Ingemar Sato, Hiroatsu An EISCAT UHF/ESR Experiment That Explains How Ionospheric Irregularities Induce GPS Phase Fluctuations at Auroral and Polar Latitudes |
topic_facet |
Institut für Solar-Terrestrische Physik |
description |
A limitation to the use of Global Navigation Satellite System (GNSS) for precise and real-time services is introduced by irregularities in the ionospheric plasma density. An EISCAT UHF/ESR experiment was conducted to characterize the effect of electron density irregularities on temporal fluctuations in TEC along directions transverse to GPS ray paths in the high latitudes ionosphere. Two representative case studies are described: Enhancements in temporal TEC fluctuations originating (a) in the auroral ionosphere following auroral particle precipitation and (b) in the polar ionosphere following the drift of a polar patch as well as particle precipitation. The results indicate that the origin of enhancements in TEC fluctuations is due to the propagation through large-to-medium scale irregularities (i.e., ranging from few kilometres in the E region to few tens of kilometres in the F region) and occurring over spatial distances of up to approximately 400 km in the E region and up to approximately 800 km in the F region with a patchy distribution. Furthermore, the results indicate that enhancements in TEC fluctuations produced by polar plasma patches and particle precipitation occur over similar temporal scales, thus explaining the overall observation of higher phase scintillation indices in the high-latitude ionosphere. The similarity in the temporal scales over which enhancements in TEC fluctuations occur in the presence of both particle precipitation and plasma patches suggests an intrinsic limitation in the monitoring and tracking of plasma patches through ground GNSS observations. |
format |
Article in Journal/Newspaper |
author |
John, Habila Forte, Biagio Astin, Ivan Allbrook, T. Arnold, A. Vani, Bruno Häggström, Ingemar Sato, Hiroatsu |
author_facet |
John, Habila Forte, Biagio Astin, Ivan Allbrook, T. Arnold, A. Vani, Bruno Häggström, Ingemar Sato, Hiroatsu |
author_sort |
John, Habila |
title |
An EISCAT UHF/ESR Experiment That Explains How Ionospheric Irregularities Induce GPS Phase Fluctuations at Auroral and Polar Latitudes |
title_short |
An EISCAT UHF/ESR Experiment That Explains How Ionospheric Irregularities Induce GPS Phase Fluctuations at Auroral and Polar Latitudes |
title_full |
An EISCAT UHF/ESR Experiment That Explains How Ionospheric Irregularities Induce GPS Phase Fluctuations at Auroral and Polar Latitudes |
title_fullStr |
An EISCAT UHF/ESR Experiment That Explains How Ionospheric Irregularities Induce GPS Phase Fluctuations at Auroral and Polar Latitudes |
title_full_unstemmed |
An EISCAT UHF/ESR Experiment That Explains How Ionospheric Irregularities Induce GPS Phase Fluctuations at Auroral and Polar Latitudes |
title_sort |
eiscat uhf/esr experiment that explains how ionospheric irregularities induce gps phase fluctuations at auroral and polar latitudes |
publisher |
Wiley |
publishDate |
2021 |
url |
https://elib.dlr.de/143901/ https://elib.dlr.de/143901/1/2020RS007236.pdf https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020RS007236 |
genre |
EISCAT |
genre_facet |
EISCAT |
op_relation |
https://elib.dlr.de/143901/1/2020RS007236.pdf John, Habila und Forte, Biagio und Astin, Ivan und Allbrook, T. und Arnold, A. und Vani, Bruno und Häggström, Ingemar und Sato, Hiroatsu (2021) An EISCAT UHF/ESR Experiment That Explains How Ionospheric Irregularities Induce GPS Phase Fluctuations at Auroral and Polar Latitudes. Radio Science. Wiley. doi:10.1029/2020RS007236 <https://doi.org/10.1029/2020RS007236>. ISSN 0048-6604. |
op_rights |
cc_by |
op_doi |
https://doi.org/10.1029/2020RS007236 |
container_title |
Radio Science |
container_volume |
56 |
container_issue |
9 |
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1772181873997381632 |