A comparison of velocity measurements from the CUTLASS Finland radar and the EISCAT UHF system
The CUTLASS Finland radar, which comprises an integral part of the SuperDARN system of HF coherent radars, provides near continuous observations of high-latitude plasma irregularities within a field-of-view which extends over some four million square kilometres. Within the Finland radar field-of-vie...
Published in: | Annales Geophysicae |
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Format: | Article in Journal/Newspaper |
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European Geosciences Union (EGU), Copernicus Publications, Springer Verlag (Germany)
2012
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Online Access: | http://hdl.handle.net/2381/18360 http://www.ann-geophys.net/17/892/1999/angeo-17-892-1999.html https://doi.org/10.1007/s00585-999-0892-9 |
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ftleicester:oai:lra.le.ac.uk:2381/18360 2023-05-15T16:04:18+02:00 A comparison of velocity measurements from the CUTLASS Finland radar and the EISCAT UHF system Davies, J. A. Lester, Mark Milan, Stephen E. Yeoman, T. K. 2012-10-24T09:05:04Z http://hdl.handle.net/2381/18360 http://www.ann-geophys.net/17/892/1999/angeo-17-892-1999.html https://doi.org/10.1007/s00585-999-0892-9 English eng European Geosciences Union (EGU), Copernicus Publications, Springer Verlag (Germany) ANNALES GEOPHYSICAE-ATMOSPHERES HYDROSPHERES AND SPACE SCIENCES, 1999, 17 (7), pp. 892-902 0992-7689 http://hdl.handle.net/2381/18360 http://www.ann-geophys.net/17/892/1999/angeo-17-892-1999.html doi:10.1007/s00585-999-0892-9 1432-0576 Archived with reference to SHERPA/RoMEO and publisher website. © European Geosciences Union 1999. Version of record: http://www.ann-geophys.net/17/892/1999/angeo-17-892-1999.html Web of Science http://webofknowledge.com Science & Technology Physical Sciences Astronomy & Astrophysics Geosciences Multidisciplinary Meteorology & Atmospheric Sciences Geology ionosphere (ionospheric irregularities plasma convection) AURORAL BACKSCATTER EXPERIMENT SMALL-SCALE IRREGULARITIES HIGH-LATITUDE CONVECTION UNSTABLE PLASMA-WAVES POLAR E-REGION IONOSPHERIC IRREGULARITIES F-REGION HF RADARS DRIFT RADIO Journal Article 2012 ftleicester https://doi.org/10.1007/s00585-999-0892-9 2019-03-22T20:16:40Z The CUTLASS Finland radar, which comprises an integral part of the SuperDARN system of HF coherent radars, provides near continuous observations of high-latitude plasma irregularities within a field-of-view which extends over some four million square kilometres. Within the Finland radar field-of-view lie both the EISCAT mainland and EISCAT Svalbard incoherent scatter radar facilities. Since the CUTLASS Finland radar commenced operation, in February 1995, the mainland EISCAT UHF radar has been run in common programme 1 and 2 modes for a total duration exceeding 1000 h. Simultaneous and spatially coincident returns from these two radars over this period provide the basis for a comparison of irregularity drift velocity and F-region ion velocity. Initial comparison is limited to velocities from four intervals of simultaneous radar returns; intervals are selected such that they exhibit a variety of velocity signatures including that characteristic of the convection reversal and a rapidly fluctuating velocity feature. Subsequent comparison is on a statistical basis. The velocities measured by the two systems demonstrate reasonable correspondence over the velocity regime encountered during the simultaneous occurrence of coherent and incoherent scatter; differences between the EISCAT UHF measurements of F-region ion drift and the irregularity drift velocities from the Finland radar are explained in terms of a number of contributing factors including contamination of the latter by E-region echoes, a factor which is investigated further, and the potentially deleterious effect of discrepant volume and time sampling intervals. 42126 Article in Journal/Newspaper EISCAT Svalbard University of Leicester: Leicester Research Archive (LRA) Svalbard Annales Geophysicae 17 7 892 902 |
institution |
Open Polar |
collection |
University of Leicester: Leicester Research Archive (LRA) |
op_collection_id |
ftleicester |
language |
English |
topic |
Science & Technology Physical Sciences Astronomy & Astrophysics Geosciences Multidisciplinary Meteorology & Atmospheric Sciences Geology ionosphere (ionospheric irregularities plasma convection) AURORAL BACKSCATTER EXPERIMENT SMALL-SCALE IRREGULARITIES HIGH-LATITUDE CONVECTION UNSTABLE PLASMA-WAVES POLAR E-REGION IONOSPHERIC IRREGULARITIES F-REGION HF RADARS DRIFT RADIO |
spellingShingle |
Science & Technology Physical Sciences Astronomy & Astrophysics Geosciences Multidisciplinary Meteorology & Atmospheric Sciences Geology ionosphere (ionospheric irregularities plasma convection) AURORAL BACKSCATTER EXPERIMENT SMALL-SCALE IRREGULARITIES HIGH-LATITUDE CONVECTION UNSTABLE PLASMA-WAVES POLAR E-REGION IONOSPHERIC IRREGULARITIES F-REGION HF RADARS DRIFT RADIO Davies, J. A. Lester, Mark Milan, Stephen E. Yeoman, T. K. A comparison of velocity measurements from the CUTLASS Finland radar and the EISCAT UHF system |
topic_facet |
Science & Technology Physical Sciences Astronomy & Astrophysics Geosciences Multidisciplinary Meteorology & Atmospheric Sciences Geology ionosphere (ionospheric irregularities plasma convection) AURORAL BACKSCATTER EXPERIMENT SMALL-SCALE IRREGULARITIES HIGH-LATITUDE CONVECTION UNSTABLE PLASMA-WAVES POLAR E-REGION IONOSPHERIC IRREGULARITIES F-REGION HF RADARS DRIFT RADIO |
description |
The CUTLASS Finland radar, which comprises an integral part of the SuperDARN system of HF coherent radars, provides near continuous observations of high-latitude plasma irregularities within a field-of-view which extends over some four million square kilometres. Within the Finland radar field-of-view lie both the EISCAT mainland and EISCAT Svalbard incoherent scatter radar facilities. Since the CUTLASS Finland radar commenced operation, in February 1995, the mainland EISCAT UHF radar has been run in common programme 1 and 2 modes for a total duration exceeding 1000 h. Simultaneous and spatially coincident returns from these two radars over this period provide the basis for a comparison of irregularity drift velocity and F-region ion velocity. Initial comparison is limited to velocities from four intervals of simultaneous radar returns; intervals are selected such that they exhibit a variety of velocity signatures including that characteristic of the convection reversal and a rapidly fluctuating velocity feature. Subsequent comparison is on a statistical basis. The velocities measured by the two systems demonstrate reasonable correspondence over the velocity regime encountered during the simultaneous occurrence of coherent and incoherent scatter; differences between the EISCAT UHF measurements of F-region ion drift and the irregularity drift velocities from the Finland radar are explained in terms of a number of contributing factors including contamination of the latter by E-region echoes, a factor which is investigated further, and the potentially deleterious effect of discrepant volume and time sampling intervals. 42126 |
format |
Article in Journal/Newspaper |
author |
Davies, J. A. Lester, Mark Milan, Stephen E. Yeoman, T. K. |
author_facet |
Davies, J. A. Lester, Mark Milan, Stephen E. Yeoman, T. K. |
author_sort |
Davies, J. A. |
title |
A comparison of velocity measurements from the CUTLASS Finland radar and the EISCAT UHF system |
title_short |
A comparison of velocity measurements from the CUTLASS Finland radar and the EISCAT UHF system |
title_full |
A comparison of velocity measurements from the CUTLASS Finland radar and the EISCAT UHF system |
title_fullStr |
A comparison of velocity measurements from the CUTLASS Finland radar and the EISCAT UHF system |
title_full_unstemmed |
A comparison of velocity measurements from the CUTLASS Finland radar and the EISCAT UHF system |
title_sort |
comparison of velocity measurements from the cutlass finland radar and the eiscat uhf system |
publisher |
European Geosciences Union (EGU), Copernicus Publications, Springer Verlag (Germany) |
publishDate |
2012 |
url |
http://hdl.handle.net/2381/18360 http://www.ann-geophys.net/17/892/1999/angeo-17-892-1999.html https://doi.org/10.1007/s00585-999-0892-9 |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
EISCAT Svalbard |
genre_facet |
EISCAT Svalbard |
op_source |
Web of Science http://webofknowledge.com |
op_relation |
ANNALES GEOPHYSICAE-ATMOSPHERES HYDROSPHERES AND SPACE SCIENCES, 1999, 17 (7), pp. 892-902 0992-7689 http://hdl.handle.net/2381/18360 http://www.ann-geophys.net/17/892/1999/angeo-17-892-1999.html doi:10.1007/s00585-999-0892-9 1432-0576 |
op_rights |
Archived with reference to SHERPA/RoMEO and publisher website. © European Geosciences Union 1999. Version of record: http://www.ann-geophys.net/17/892/1999/angeo-17-892-1999.html |
op_doi |
https://doi.org/10.1007/s00585-999-0892-9 |
container_title |
Annales Geophysicae |
container_volume |
17 |
container_issue |
7 |
container_start_page |
892 |
op_container_end_page |
902 |
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1766399982705836032 |