Imaging High-Latitude Plasma Density Irregularities Resulting from Particle Precipitation: Spaceborne L-Band SAR and EISCAT Observations
High-latitude, small-scale plasma density irregularities are observed by the Advanced Land Observation Satellite 2, Phase Array type L-band Synthetic Aperture Radar-2 and the European Incoherent Scatter radar in Tromsø, Norway. Under high levels of ionization of up to approximately 300 km in height...
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ftdlr:oai:elib.dlr.de:122864 2023-12-17T10:29:36+01:00 Imaging High-Latitude Plasma Density Irregularities Resulting from Particle Precipitation: Spaceborne L-Band SAR and EISCAT Observations Sato, Hiroatsu Kim, Jun Su Jakowski, Norbert Häggström, Ingemar 2018-10 application/pdf https://elib.dlr.de/122864/ https://elib.dlr.de/122864/1/s40623-018-0934-1.pdf https://earth-planets-space.springeropen.com/articles/10.1186/s40623-018-0934-1#Bib1 de ger Springer https://elib.dlr.de/122864/1/s40623-018-0934-1.pdf Sato, Hiroatsu und Kim, Jun Su und Jakowski, Norbert und Häggström, Ingemar (2018) Imaging High-Latitude Plasma Density Irregularities Resulting from Particle Precipitation: Spaceborne L-Band SAR and EISCAT Observations. Earth, Planets and Space, 70 (163), Seiten 1-8. Springer. doi:10.1186/s40623-018-0934-1 <https://doi.org/10.1186/s40623-018-0934-1>. ISSN 1343-8832. cc_by Institut für Kommunikation und Navigation Institut für Hochfrequenztechnik und Radarsysteme Radarkonzepte Zeitschriftenbeitrag PeerReviewed 2018 ftdlr https://doi.org/10.1186/s40623-018-0934-1 2023-11-20T00:24:18Z High-latitude, small-scale plasma density irregularities are observed by the Advanced Land Observation Satellite 2, Phase Array type L-band Synthetic Aperture Radar-2 and the European Incoherent Scatter radar in Tromsø, Norway. Under high levels of ionization of up to approximately 300 km in height triggered by nighttime particle precipitation, high-resolution SAR images detect horizontal distributions of azimuth shifts resulting from the spatial gradients of electron density. The irregular electron density is characterized by tens of kilometers of band-like structures aligned in the east–west direction with small patch-like structures. We present a method for estimating the local change of TEC gradient and the height of ionospheric irregularities by using single-image SAR sub-band data. The results suggest that these observed structures are likely to be associated with density irregularities caused by precipitating electrons that may have been cascaded into smaller scales by plasma instability processes at F region altitudes. This study presents the first coordinated observations of high-latitude ionosphere features by using SAR satellites and incoherent scatter radar. Article in Journal/Newspaper EISCAT Tromsø German Aerospace Center: elib - DLR electronic library Norway Tromsø Earth, Planets and Space 70 1 |
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Open Polar |
collection |
German Aerospace Center: elib - DLR electronic library |
op_collection_id |
ftdlr |
language |
German |
topic |
Institut für Kommunikation und Navigation Institut für Hochfrequenztechnik und Radarsysteme Radarkonzepte |
spellingShingle |
Institut für Kommunikation und Navigation Institut für Hochfrequenztechnik und Radarsysteme Radarkonzepte Sato, Hiroatsu Kim, Jun Su Jakowski, Norbert Häggström, Ingemar Imaging High-Latitude Plasma Density Irregularities Resulting from Particle Precipitation: Spaceborne L-Band SAR and EISCAT Observations |
topic_facet |
Institut für Kommunikation und Navigation Institut für Hochfrequenztechnik und Radarsysteme Radarkonzepte |
description |
High-latitude, small-scale plasma density irregularities are observed by the Advanced Land Observation Satellite 2, Phase Array type L-band Synthetic Aperture Radar-2 and the European Incoherent Scatter radar in Tromsø, Norway. Under high levels of ionization of up to approximately 300 km in height triggered by nighttime particle precipitation, high-resolution SAR images detect horizontal distributions of azimuth shifts resulting from the spatial gradients of electron density. The irregular electron density is characterized by tens of kilometers of band-like structures aligned in the east–west direction with small patch-like structures. We present a method for estimating the local change of TEC gradient and the height of ionospheric irregularities by using single-image SAR sub-band data. The results suggest that these observed structures are likely to be associated with density irregularities caused by precipitating electrons that may have been cascaded into smaller scales by plasma instability processes at F region altitudes. This study presents the first coordinated observations of high-latitude ionosphere features by using SAR satellites and incoherent scatter radar. |
format |
Article in Journal/Newspaper |
author |
Sato, Hiroatsu Kim, Jun Su Jakowski, Norbert Häggström, Ingemar |
author_facet |
Sato, Hiroatsu Kim, Jun Su Jakowski, Norbert Häggström, Ingemar |
author_sort |
Sato, Hiroatsu |
title |
Imaging High-Latitude Plasma Density Irregularities Resulting from Particle Precipitation: Spaceborne L-Band SAR and EISCAT Observations |
title_short |
Imaging High-Latitude Plasma Density Irregularities Resulting from Particle Precipitation: Spaceborne L-Band SAR and EISCAT Observations |
title_full |
Imaging High-Latitude Plasma Density Irregularities Resulting from Particle Precipitation: Spaceborne L-Band SAR and EISCAT Observations |
title_fullStr |
Imaging High-Latitude Plasma Density Irregularities Resulting from Particle Precipitation: Spaceborne L-Band SAR and EISCAT Observations |
title_full_unstemmed |
Imaging High-Latitude Plasma Density Irregularities Resulting from Particle Precipitation: Spaceborne L-Band SAR and EISCAT Observations |
title_sort |
imaging high-latitude plasma density irregularities resulting from particle precipitation: spaceborne l-band sar and eiscat observations |
publisher |
Springer |
publishDate |
2018 |
url |
https://elib.dlr.de/122864/ https://elib.dlr.de/122864/1/s40623-018-0934-1.pdf https://earth-planets-space.springeropen.com/articles/10.1186/s40623-018-0934-1#Bib1 |
geographic |
Norway Tromsø |
geographic_facet |
Norway Tromsø |
genre |
EISCAT Tromsø |
genre_facet |
EISCAT Tromsø |
op_relation |
https://elib.dlr.de/122864/1/s40623-018-0934-1.pdf Sato, Hiroatsu und Kim, Jun Su und Jakowski, Norbert und Häggström, Ingemar (2018) Imaging High-Latitude Plasma Density Irregularities Resulting from Particle Precipitation: Spaceborne L-Band SAR and EISCAT Observations. Earth, Planets and Space, 70 (163), Seiten 1-8. Springer. doi:10.1186/s40623-018-0934-1 <https://doi.org/10.1186/s40623-018-0934-1>. ISSN 1343-8832. |
op_rights |
cc_by |
op_doi |
https://doi.org/10.1186/s40623-018-0934-1 |
container_title |
Earth, Planets and Space |
container_volume |
70 |
container_issue |
1 |
_version_ |
1785582017159626752 |