New techniques for auroral irregularity studies with COSCAT
The COSCAT system enables the detection of E-region auroral backscatter with the EISCAT remote receivers at magnetic aspect angles close to 90 °. This is achieved by utilising a low-power transmitter stationed in Oulu, Finland. Many important observations of E-region irregularities have been achieve...
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Online Access: | https://doi.org/10.1007/s00585-998-1241-0 https://noa.gwlb.de/receive/cop_mods_00037217 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00037171/angeo-16-1241-1998.pdf https://angeo.copernicus.org/articles/16/1241/1998/angeo-16-1241-1998.pdf |
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00037217 2023-05-15T16:04:43+02:00 New techniques for auroral irregularity studies with COSCAT Eglitis, P. McCrea, I. W. Robinson, T. R. Nygrén, T. Schlegel, K. Turunen, T. Jones, T. B. 1998-10 electronic https://doi.org/10.1007/s00585-998-1241-0 https://noa.gwlb.de/receive/cop_mods_00037217 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00037171/angeo-16-1241-1998.pdf https://angeo.copernicus.org/articles/16/1241/1998/angeo-16-1241-1998.pdf eng eng Springer Verlag Annales Geophysicae -- http://www.bibliothek.uni-regensburg.de/ezeit/?1458425 -- https://www.ann-geophys.net/ -- https://www.ann-geophys.net/volumes.html -- http://link.springer.com/journal/585 -- 1432-0576 https://doi.org/10.1007/s00585-998-1241-0 https://noa.gwlb.de/receive/cop_mods_00037217 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00037171/angeo-16-1241-1998.pdf https://angeo.copernicus.org/articles/16/1241/1998/angeo-16-1241-1998.pdf https://open-access.net/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 1998 ftnonlinearchiv https://doi.org/10.1007/s00585-998-1241-0 2022-02-08T22:43:37Z The COSCAT system enables the detection of E-region auroral backscatter with the EISCAT remote receivers at magnetic aspect angles close to 90 °. This is achieved by utilising a low-power transmitter stationed in Oulu, Finland. Many important observations of E-region irregularities have been achieved with this simple experiment. Recent studies have attempted to push the COSCAT system to its experimental limits. Firstly, the CW signal has been phase-modulated with 13-bit Barker codes with baud lengths of 40, 70 and 100 µs. Interpretation of the received power allows the spatial distribution of the auroral scatterers to be determined. The second advance is in the use of a sophisticated correlator program which allows data to be buffered within the correlator at very high time resolution. This enables the coherent backscatter power to be sampled every 12.5 ms and the full auto-correlation function to be measured every 100 ms. These measurements allow the COSCAT system to be employed for the first time in an investigation of the growth and decay of the auroral irregularities. Key words. Ionosphere (ionospheric irregularities) · Radio science (Instruments and techniques) Article in Journal/Newspaper EISCAT Niedersächsisches Online-Archiv NOA Annales Geophysicae 16 10 1241 1250 |
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article Verlagsveröffentlichung Eglitis, P. McCrea, I. W. Robinson, T. R. Nygrén, T. Schlegel, K. Turunen, T. Jones, T. B. New techniques for auroral irregularity studies with COSCAT |
topic_facet |
article Verlagsveröffentlichung |
description |
The COSCAT system enables the detection of E-region auroral backscatter with the EISCAT remote receivers at magnetic aspect angles close to 90 °. This is achieved by utilising a low-power transmitter stationed in Oulu, Finland. Many important observations of E-region irregularities have been achieved with this simple experiment. Recent studies have attempted to push the COSCAT system to its experimental limits. Firstly, the CW signal has been phase-modulated with 13-bit Barker codes with baud lengths of 40, 70 and 100 µs. Interpretation of the received power allows the spatial distribution of the auroral scatterers to be determined. The second advance is in the use of a sophisticated correlator program which allows data to be buffered within the correlator at very high time resolution. This enables the coherent backscatter power to be sampled every 12.5 ms and the full auto-correlation function to be measured every 100 ms. These measurements allow the COSCAT system to be employed for the first time in an investigation of the growth and decay of the auroral irregularities. Key words. Ionosphere (ionospheric irregularities) · Radio science (Instruments and techniques) |
format |
Article in Journal/Newspaper |
author |
Eglitis, P. McCrea, I. W. Robinson, T. R. Nygrén, T. Schlegel, K. Turunen, T. Jones, T. B. |
author_facet |
Eglitis, P. McCrea, I. W. Robinson, T. R. Nygrén, T. Schlegel, K. Turunen, T. Jones, T. B. |
author_sort |
Eglitis, P. |
title |
New techniques for auroral irregularity studies with COSCAT |
title_short |
New techniques for auroral irregularity studies with COSCAT |
title_full |
New techniques for auroral irregularity studies with COSCAT |
title_fullStr |
New techniques for auroral irregularity studies with COSCAT |
title_full_unstemmed |
New techniques for auroral irregularity studies with COSCAT |
title_sort |
new techniques for auroral irregularity studies with coscat |
publisher |
Springer Verlag |
publishDate |
1998 |
url |
https://doi.org/10.1007/s00585-998-1241-0 https://noa.gwlb.de/receive/cop_mods_00037217 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00037171/angeo-16-1241-1998.pdf https://angeo.copernicus.org/articles/16/1241/1998/angeo-16-1241-1998.pdf |
genre |
EISCAT |
genre_facet |
EISCAT |
op_relation |
Annales Geophysicae -- http://www.bibliothek.uni-regensburg.de/ezeit/?1458425 -- https://www.ann-geophys.net/ -- https://www.ann-geophys.net/volumes.html -- http://link.springer.com/journal/585 -- 1432-0576 https://doi.org/10.1007/s00585-998-1241-0 https://noa.gwlb.de/receive/cop_mods_00037217 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00037171/angeo-16-1241-1998.pdf https://angeo.copernicus.org/articles/16/1241/1998/angeo-16-1241-1998.pdf |
op_rights |
https://open-access.net/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s00585-998-1241-0 |
container_title |
Annales Geophysicae |
container_volume |
16 |
container_issue |
10 |
container_start_page |
1241 |
op_container_end_page |
1250 |
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