An adjusted location model for SuperDARN backscatter echoes
The radars that form the Super Dual Auroral Radar Network (SuperDARN) receive scatter from ionospheric irregularities in both the E- and F-regions, as well as the Earth's surface, either ground or sea. For ionospheric scatter, the current SuperDARN standard software considers a straight-line pr...
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Online Access: | http://www.ann-geophys.net/30/1769/2012/angeo-30-1769-2012.html http://hdl.handle.net/2381/32471 https://doi.org/10.5194/angeo-30-1769-2012 |
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ftleicester:oai:lra.le.ac.uk:2381/32471 2023-05-15T18:20:18+02:00 An adjusted location model for SuperDARN backscatter echoes Liu, E. X. Hu, H. Q. Liu, R. Y. Wu, Z. S. Lester, M. 2015-07-02T08:26:27Z http://www.ann-geophys.net/30/1769/2012/angeo-30-1769-2012.html http://hdl.handle.net/2381/32471 https://doi.org/10.5194/angeo-30-1769-2012 en eng Copernicus Publications on behalf of the European Geosciences Union Annales Geophysicae, 2012, 30 (12), pp. 1769-1779 0992-7689 http://www.ann-geophys.net/30/1769/2012/angeo-30-1769-2012.html http://hdl.handle.net/2381/32471 doi:10.5194/angeo-30-1769-2012 1432-0576 Copyright © the authors, 2012. This is an open-access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/3.0/ ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Science & Technology Physical Sciences Astronomy & Astrophysics Geosciences Multidisciplinary Meteorology & Atmospheric Sciences Geology Ionosphere Ionospheric irregularities Radio science Radio wave propagation RADIO-WAVE PROPAGATION HF RADAR BACKSCATTER REGION BACKSCATTER COHERENT ECHOES AURORAL FORMS CUTLASS CONVECTION Journal Article Article;Journal 2015 ftleicester https://doi.org/10.5194/angeo-30-1769-2012 2019-03-22T20:20:19Z The radars that form the Super Dual Auroral Radar Network (SuperDARN) receive scatter from ionospheric irregularities in both the E- and F-regions, as well as the Earth's surface, either ground or sea. For ionospheric scatter, the current SuperDARN standard software considers a straight-line propagation from the radar to the scattering zone with an altitude assigned by a standard height model. The knowledge of the group delay to a scatter volume is not sufficient for an exact determination of the location of the irregularities. In this study, the difference between the locations of the backscatter echoes determined by SuperDARN standard software and by ray tracing has been evaluated, using the ionosonde data collected at Sodankylä, which is in the field-of-view of Hankasalmi SuperDARN radar. By studying elevation angle information of backscattered echoes from the data sets of Hankasalmi radar in 2008, we have proposed an adjusted fitting location model determined by slant range and elevation angle. To test the reliability of the adjusted model, an independent data set is selected in 2009. The result shows that the difference between the adjusted model and the ray tracing is significantly reduced and the adjusted model could provide a more accurate location for backscatter targets. Peer-reviewed Publisher Version Article in Journal/Newspaper Sodankylä University of Leicester: Leicester Research Archive (LRA) Sodankylä ENVELOPE(26.600,26.600,67.417,67.417) Annales Geophysicae 30 12 1769 1779 |
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 Radio science Radio wave propagation RADIO-WAVE PROPAGATION HF RADAR BACKSCATTER REGION BACKSCATTER COHERENT ECHOES AURORAL FORMS CUTLASS CONVECTION |
spellingShingle |
Science & Technology Physical Sciences Astronomy & Astrophysics Geosciences Multidisciplinary Meteorology & Atmospheric Sciences Geology Ionosphere Ionospheric irregularities Radio science Radio wave propagation RADIO-WAVE PROPAGATION HF RADAR BACKSCATTER REGION BACKSCATTER COHERENT ECHOES AURORAL FORMS CUTLASS CONVECTION Liu, E. X. Hu, H. Q. Liu, R. Y. Wu, Z. S. Lester, M. An adjusted location model for SuperDARN backscatter echoes |
topic_facet |
Science & Technology Physical Sciences Astronomy & Astrophysics Geosciences Multidisciplinary Meteorology & Atmospheric Sciences Geology Ionosphere Ionospheric irregularities Radio science Radio wave propagation RADIO-WAVE PROPAGATION HF RADAR BACKSCATTER REGION BACKSCATTER COHERENT ECHOES AURORAL FORMS CUTLASS CONVECTION |
description |
The radars that form the Super Dual Auroral Radar Network (SuperDARN) receive scatter from ionospheric irregularities in both the E- and F-regions, as well as the Earth's surface, either ground or sea. For ionospheric scatter, the current SuperDARN standard software considers a straight-line propagation from the radar to the scattering zone with an altitude assigned by a standard height model. The knowledge of the group delay to a scatter volume is not sufficient for an exact determination of the location of the irregularities. In this study, the difference between the locations of the backscatter echoes determined by SuperDARN standard software and by ray tracing has been evaluated, using the ionosonde data collected at Sodankylä, which is in the field-of-view of Hankasalmi SuperDARN radar. By studying elevation angle information of backscattered echoes from the data sets of Hankasalmi radar in 2008, we have proposed an adjusted fitting location model determined by slant range and elevation angle. To test the reliability of the adjusted model, an independent data set is selected in 2009. The result shows that the difference between the adjusted model and the ray tracing is significantly reduced and the adjusted model could provide a more accurate location for backscatter targets. Peer-reviewed Publisher Version |
format |
Article in Journal/Newspaper |
author |
Liu, E. X. Hu, H. Q. Liu, R. Y. Wu, Z. S. Lester, M. |
author_facet |
Liu, E. X. Hu, H. Q. Liu, R. Y. Wu, Z. S. Lester, M. |
author_sort |
Liu, E. X. |
title |
An adjusted location model for SuperDARN backscatter echoes |
title_short |
An adjusted location model for SuperDARN backscatter echoes |
title_full |
An adjusted location model for SuperDARN backscatter echoes |
title_fullStr |
An adjusted location model for SuperDARN backscatter echoes |
title_full_unstemmed |
An adjusted location model for SuperDARN backscatter echoes |
title_sort |
adjusted location model for superdarn backscatter echoes |
publisher |
Copernicus Publications on behalf of the European Geosciences Union |
publishDate |
2015 |
url |
http://www.ann-geophys.net/30/1769/2012/angeo-30-1769-2012.html http://hdl.handle.net/2381/32471 https://doi.org/10.5194/angeo-30-1769-2012 |
long_lat |
ENVELOPE(26.600,26.600,67.417,67.417) |
geographic |
Sodankylä |
geographic_facet |
Sodankylä |
genre |
Sodankylä |
genre_facet |
Sodankylä |
op_relation |
Annales Geophysicae, 2012, 30 (12), pp. 1769-1779 0992-7689 http://www.ann-geophys.net/30/1769/2012/angeo-30-1769-2012.html http://hdl.handle.net/2381/32471 doi:10.5194/angeo-30-1769-2012 1432-0576 |
op_rights |
Copyright © the authors, 2012. This is an open-access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/3.0/ ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/angeo-30-1769-2012 |
container_title |
Annales Geophysicae |
container_volume |
30 |
container_issue |
12 |
container_start_page |
1769 |
op_container_end_page |
1779 |
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1766197811149275136 |