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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ftleicesterunfig:oai:figshare.com:article/10169972 2023-05-15T18:20:18+02:00 An adjusted location model for SuperDARN backscatter echoes E. X. Liu H. Q. Hu R. Y. Liu Z. S. Wu M. Lester 2011-12-21T00:00:00Z https://figshare.com/articles/journal_contribution/An_adjusted_location_model_for_SuperDARN_backscatter_echoes/10169972 unknown 2381/32471 https://figshare.com/articles/journal_contribution/An_adjusted_location_model_for_SuperDARN_backscatter_echoes/10169972 All Rights Reserved Uncategorized 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 Text Journal contribution 2011 ftleicesterunfig 2021-11-11T19:52:39Z 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. Other Non-Article Part of Journal/Newspaper Sodankylä University of Leicester: Figshare Sodankylä ENVELOPE(26.600,26.600,67.417,67.417) |
institution |
Open Polar |
collection |
University of Leicester: Figshare |
op_collection_id |
ftleicesterunfig |
language |
unknown |
topic |
Uncategorized 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 |
Uncategorized 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 E. X. Liu H. Q. Hu R. Y. Liu Z. S. Wu M. Lester An adjusted location model for SuperDARN backscatter echoes |
topic_facet |
Uncategorized 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. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
E. X. Liu H. Q. Hu R. Y. Liu Z. S. Wu M. Lester |
author_facet |
E. X. Liu H. Q. Hu R. Y. Liu Z. S. Wu M. Lester |
author_sort |
E. X. Liu |
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 |
publishDate |
2011 |
url |
https://figshare.com/articles/journal_contribution/An_adjusted_location_model_for_SuperDARN_backscatter_echoes/10169972 |
long_lat |
ENVELOPE(26.600,26.600,67.417,67.417) |
geographic |
Sodankylä |
geographic_facet |
Sodankylä |
genre |
Sodankylä |
genre_facet |
Sodankylä |
op_relation |
2381/32471 https://figshare.com/articles/journal_contribution/An_adjusted_location_model_for_SuperDARN_backscatter_echoes/10169972 |
op_rights |
All Rights Reserved |
_version_ |
1766197811327533056 |