GPS scintillation effects associated with polar cap patches and substorm auroral activity: direct comparison
We directly compare the relative GPS scintillation levels associated with regions of enhanced plasma irregularities called auroral arcs, polar cap patches, and auroral blobs that frequently occur in the polar ionosphere. On January 13, 2013 from Ny-Ålesund, several polar cap patches were observed to...
Published in: | Journal of Space Weather and Space Climate |
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Language: | English |
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Online Access: | http://hdl.handle.net/10852/52513 http://urn.nb.no/URN:NBN:no-55911 https://doi.org/10.1051/swsc/2014019 |
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ftoslouniv:oai:www.duo.uio.no:10852/52513 2023-05-15T17:48:27+02:00 GPS scintillation effects associated with polar cap patches and substorm auroral activity: direct comparison Jin, Yaqi Moen, Jøran I. Miloch, Wojciech J. 2014 http://hdl.handle.net/10852/52513 http://urn.nb.no/URN:NBN:no-55911 https://doi.org/10.1051/swsc/2014019 en eng Jin, Yaqi (2016) Characterization of GPS Scintillations in the Polar Ionosphere. Doctoral thesis. http://urn.nb.no/URN:NBN:no-55915 http://urn.nb.no/URN:NBN:no-55915 http://urn.nb.no/URN:NBN:no-55911 http://hdl.handle.net/10852/52513 1160545 Journal of Space Weather and Space Climate 4 http://dx.doi.org/10.1051/swsc/2014019 URN:NBN:no-55911 Fulltext https://www.duo.uio.no/bitstream/handle/10852/52513/1/swsc140011.pdf Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2014 ftoslouniv https://doi.org/10.1051/swsc/2014019 2020-06-21T08:50:00Z We directly compare the relative GPS scintillation levels associated with regions of enhanced plasma irregularities called auroral arcs, polar cap patches, and auroral blobs that frequently occur in the polar ionosphere. On January 13, 2013 from Ny-Ålesund, several polar cap patches were observed to exit the polar cap into the auroral oval, and were then termed auroral blobs. This gave us an unprecedented opportunity to compare the relative scintillation levels associated with these three phenomena. The blobs were associated with the strongest phase scintillation (σϕ), followed by patches and arcs, with σϕ up to 0.6, 0.5, and 0.1 rad, respectively. Our observations indicate that most patches in the nightside polar cap have produced significant scintillations, but not all of them. Since the blobs are formed after patches merged into auroral regions, in space weather predictions of GPS scintillations, it will be important to enable predictions of patches exiting the polar cap. Article in Journal/Newspaper Ny Ålesund Ny-Ålesund Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Ny-Ålesund Journal of Space Weather and Space Climate 4 A23 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
We directly compare the relative GPS scintillation levels associated with regions of enhanced plasma irregularities called auroral arcs, polar cap patches, and auroral blobs that frequently occur in the polar ionosphere. On January 13, 2013 from Ny-Ålesund, several polar cap patches were observed to exit the polar cap into the auroral oval, and were then termed auroral blobs. This gave us an unprecedented opportunity to compare the relative scintillation levels associated with these three phenomena. The blobs were associated with the strongest phase scintillation (σϕ), followed by patches and arcs, with σϕ up to 0.6, 0.5, and 0.1 rad, respectively. Our observations indicate that most patches in the nightside polar cap have produced significant scintillations, but not all of them. Since the blobs are formed after patches merged into auroral regions, in space weather predictions of GPS scintillations, it will be important to enable predictions of patches exiting the polar cap. |
format |
Article in Journal/Newspaper |
author |
Jin, Yaqi Moen, Jøran I. Miloch, Wojciech J. |
spellingShingle |
Jin, Yaqi Moen, Jøran I. Miloch, Wojciech J. GPS scintillation effects associated with polar cap patches and substorm auroral activity: direct comparison |
author_facet |
Jin, Yaqi Moen, Jøran I. Miloch, Wojciech J. |
author_sort |
Jin, Yaqi |
title |
GPS scintillation effects associated with polar cap patches and substorm auroral activity: direct comparison |
title_short |
GPS scintillation effects associated with polar cap patches and substorm auroral activity: direct comparison |
title_full |
GPS scintillation effects associated with polar cap patches and substorm auroral activity: direct comparison |
title_fullStr |
GPS scintillation effects associated with polar cap patches and substorm auroral activity: direct comparison |
title_full_unstemmed |
GPS scintillation effects associated with polar cap patches and substorm auroral activity: direct comparison |
title_sort |
gps scintillation effects associated with polar cap patches and substorm auroral activity: direct comparison |
publishDate |
2014 |
url |
http://hdl.handle.net/10852/52513 http://urn.nb.no/URN:NBN:no-55911 https://doi.org/10.1051/swsc/2014019 |
geographic |
Ny-Ålesund |
geographic_facet |
Ny-Ålesund |
genre |
Ny Ålesund Ny-Ålesund |
genre_facet |
Ny Ålesund Ny-Ålesund |
op_relation |
Jin, Yaqi (2016) Characterization of GPS Scintillations in the Polar Ionosphere. Doctoral thesis. http://urn.nb.no/URN:NBN:no-55915 http://urn.nb.no/URN:NBN:no-55915 http://urn.nb.no/URN:NBN:no-55911 http://hdl.handle.net/10852/52513 1160545 Journal of Space Weather and Space Climate 4 http://dx.doi.org/10.1051/swsc/2014019 URN:NBN:no-55911 Fulltext https://www.duo.uio.no/bitstream/handle/10852/52513/1/swsc140011.pdf |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1051/swsc/2014019 |
container_title |
Journal of Space Weather and Space Climate |
container_volume |
4 |
container_start_page |
A23 |
_version_ |
1766154525791485952 |