An interhemispheric comparison of GPS phase scintillation with auroral emission observed at the South Pole and from the DMSP satellite
The global positioning system (GPS) phase scintillation caused by high-latitude ionospheric irregularities during an intense high-speed stream (HSS) of the solar wind from April 29 to May 5, 2011, was observed using arrays of GPS ionospheric scintillation and total electron content monitors in the A...
Published in: | Annals of Geophysics |
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Istituto Nazionale di Geofisica e Vulcanologia (INGV)
2013
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ftdoajarticles:oai:doaj.org/article:e4e901e4a4ef4001815e7584390c94e5 2023-05-15T13:44:10+02:00 An interhemispheric comparison of GPS phase scintillation with auroral emission observed at the South Pole and from the DMSP satellite Paul Prikryl Yongliang Zhang Yusuke Ebihara Reza Ghoddousi-Fard Periyadan T. Jayachandran Joe Kinrade Cathryn N. Mitchell Allan T. Weatherwax Gary Bust Pierre J. Cilliers Luca Spogli Lucilla Alfonsi Vincenzo Romano Baiqi Ning Guozhu Li Martin J. Jarvis Donald W. Danskin Emma Spanswick Eric Donovan Mike Terkildsen 2013-06-01T00:00:00Z https://doi.org/10.4401/ag-6227 https://doaj.org/article/e4e901e4a4ef4001815e7584390c94e5 EN eng Istituto Nazionale di Geofisica e Vulcanologia (INGV) http://www.annalsofgeophysics.eu/index.php/annals/article/view/6227 https://doaj.org/toc/1593-5213 https://doaj.org/toc/2037-416X 1593-5213 2037-416X doi:10.4401/ag-6227 https://doaj.org/article/e4e901e4a4ef4001815e7584390c94e5 Annals of Geophysics, Vol 56, Iss 2 (2013) Polar and auroral ionosphere Ionospheric scintillation Space weather Aurora Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 article 2013 ftdoajarticles https://doi.org/10.4401/ag-6227 2022-12-31T13:22:02Z The global positioning system (GPS) phase scintillation caused by high-latitude ionospheric irregularities during an intense high-speed stream (HSS) of the solar wind from April 29 to May 5, 2011, was observed using arrays of GPS ionospheric scintillation and total electron content monitors in the Arctic and Antarctica. The one-minute phase-scintillation index derived from the data sampled at 50 Hz was complemented by a proxy index (delta phase rate) obtained from 1-Hz GPS data. The scintillation occurrence coincided with the aurora borealis and aurora australis observed by an all-sky imager at the South Pole, and by special sensor ultraviolet scanning imagers on board satellites of the Defense Meteorological Satellites Program. The South Pole (SP) station is approximately conjugate with two Canadian High Arctic Ionospheric Network stations on Baffin Island, Canada, which provided the opportunity to study magnetic conjugacy of scintillation with support of riometers and magnetometers. The GPS ionospheric pierce points were mapped at their actual or conjugate locations, along with the auroral emission over the South Pole, assuming an altitude of 120 km. As the aurora brightened and/or drifted across the field of view of the all-sky imager, sequences of scintillation events were observed that indicated conjugate auroras as a locator of simultaneous or delayed bipolar scintillation events. In spite of the greater scintillation intensity in the auroral oval, where phase scintillation sometimes exceeded 1 radian during the auroral break-up and substorms, the percentage occurrence of moderate scintillation was highest in the cusp. Interhemispheric comparisons of bipolar scintillation maps show that the scintillation occurrence is significantly higher in the southern cusp and polar cap. Article in Journal/Newspaper Antarc* Antarctica Arctic aurora australis Baffin Island Baffin Canadian High Arctic Ionospheric Network South pole South pole Directory of Open Access Journals: DOAJ Articles Arctic Baffin Island Canada South Pole Annals of Geophysics 56 2 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Polar and auroral ionosphere Ionospheric scintillation Space weather Aurora Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Polar and auroral ionosphere Ionospheric scintillation Space weather Aurora Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 Paul Prikryl Yongliang Zhang Yusuke Ebihara Reza Ghoddousi-Fard Periyadan T. Jayachandran Joe Kinrade Cathryn N. Mitchell Allan T. Weatherwax Gary Bust Pierre J. Cilliers Luca Spogli Lucilla Alfonsi Vincenzo Romano Baiqi Ning Guozhu Li Martin J. Jarvis Donald W. Danskin Emma Spanswick Eric Donovan Mike Terkildsen An interhemispheric comparison of GPS phase scintillation with auroral emission observed at the South Pole and from the DMSP satellite |
topic_facet |
Polar and auroral ionosphere Ionospheric scintillation Space weather Aurora Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
description |
The global positioning system (GPS) phase scintillation caused by high-latitude ionospheric irregularities during an intense high-speed stream (HSS) of the solar wind from April 29 to May 5, 2011, was observed using arrays of GPS ionospheric scintillation and total electron content monitors in the Arctic and Antarctica. The one-minute phase-scintillation index derived from the data sampled at 50 Hz was complemented by a proxy index (delta phase rate) obtained from 1-Hz GPS data. The scintillation occurrence coincided with the aurora borealis and aurora australis observed by an all-sky imager at the South Pole, and by special sensor ultraviolet scanning imagers on board satellites of the Defense Meteorological Satellites Program. The South Pole (SP) station is approximately conjugate with two Canadian High Arctic Ionospheric Network stations on Baffin Island, Canada, which provided the opportunity to study magnetic conjugacy of scintillation with support of riometers and magnetometers. The GPS ionospheric pierce points were mapped at their actual or conjugate locations, along with the auroral emission over the South Pole, assuming an altitude of 120 km. As the aurora brightened and/or drifted across the field of view of the all-sky imager, sequences of scintillation events were observed that indicated conjugate auroras as a locator of simultaneous or delayed bipolar scintillation events. In spite of the greater scintillation intensity in the auroral oval, where phase scintillation sometimes exceeded 1 radian during the auroral break-up and substorms, the percentage occurrence of moderate scintillation was highest in the cusp. Interhemispheric comparisons of bipolar scintillation maps show that the scintillation occurrence is significantly higher in the southern cusp and polar cap. |
format |
Article in Journal/Newspaper |
author |
Paul Prikryl Yongliang Zhang Yusuke Ebihara Reza Ghoddousi-Fard Periyadan T. Jayachandran Joe Kinrade Cathryn N. Mitchell Allan T. Weatherwax Gary Bust Pierre J. Cilliers Luca Spogli Lucilla Alfonsi Vincenzo Romano Baiqi Ning Guozhu Li Martin J. Jarvis Donald W. Danskin Emma Spanswick Eric Donovan Mike Terkildsen |
author_facet |
Paul Prikryl Yongliang Zhang Yusuke Ebihara Reza Ghoddousi-Fard Periyadan T. Jayachandran Joe Kinrade Cathryn N. Mitchell Allan T. Weatherwax Gary Bust Pierre J. Cilliers Luca Spogli Lucilla Alfonsi Vincenzo Romano Baiqi Ning Guozhu Li Martin J. Jarvis Donald W. Danskin Emma Spanswick Eric Donovan Mike Terkildsen |
author_sort |
Paul Prikryl |
title |
An interhemispheric comparison of GPS phase scintillation with auroral emission observed at the South Pole and from the DMSP satellite |
title_short |
An interhemispheric comparison of GPS phase scintillation with auroral emission observed at the South Pole and from the DMSP satellite |
title_full |
An interhemispheric comparison of GPS phase scintillation with auroral emission observed at the South Pole and from the DMSP satellite |
title_fullStr |
An interhemispheric comparison of GPS phase scintillation with auroral emission observed at the South Pole and from the DMSP satellite |
title_full_unstemmed |
An interhemispheric comparison of GPS phase scintillation with auroral emission observed at the South Pole and from the DMSP satellite |
title_sort |
interhemispheric comparison of gps phase scintillation with auroral emission observed at the south pole and from the dmsp satellite |
publisher |
Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
publishDate |
2013 |
url |
https://doi.org/10.4401/ag-6227 https://doaj.org/article/e4e901e4a4ef4001815e7584390c94e5 |
geographic |
Arctic Baffin Island Canada South Pole |
geographic_facet |
Arctic Baffin Island Canada South Pole |
genre |
Antarc* Antarctica Arctic aurora australis Baffin Island Baffin Canadian High Arctic Ionospheric Network South pole South pole |
genre_facet |
Antarc* Antarctica Arctic aurora australis Baffin Island Baffin Canadian High Arctic Ionospheric Network South pole South pole |
op_source |
Annals of Geophysics, Vol 56, Iss 2 (2013) |
op_relation |
http://www.annalsofgeophysics.eu/index.php/annals/article/view/6227 https://doaj.org/toc/1593-5213 https://doaj.org/toc/2037-416X 1593-5213 2037-416X doi:10.4401/ag-6227 https://doaj.org/article/e4e901e4a4ef4001815e7584390c94e5 |
op_doi |
https://doi.org/10.4401/ag-6227 |
container_title |
Annals of Geophysics |
container_volume |
56 |
container_issue |
2 |
_version_ |
1766198397875781632 |