Assessing the contamination of SuperDARN global convection maps by non-F-region backscatter
Global convection mapping using line-of-sight Doppler velocity data from the Super Dual Auroral Radar Network (SuperDARN) is now an accepted method of imaging high-latitude ionospheric convection. This mapping process requires that the flow measured by the radars is defined solely by the con...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2002-01-01
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| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/20/13/2002/angeo-20-13-2002.pdf |
| Summary: | Global convection mapping
using line-of-sight Doppler velocity data from the Super Dual Auroral Radar
Network (SuperDARN) is now an accepted method of imaging high-latitude
ionospheric convection. This mapping process requires that the flow measured by
the radars is defined solely by the convection electric field. This is
generally only true of radar backscatter from the ionospheric F-region. We
investigate the extent to which the E-region and ground backscatter in the
SuperDARN data set may be misidentified as F-region backscatter, and assess the
contamination of global convection maps which results from the addition of this
non-F-region backscatter. We present examples which highlight the importance of
identifying this contamination, especially with regard to the mesoscale
structure in the convection maps.<br><br><b>Key words. </b>Ionosphere (plasma
convection) – Radio science (radio wave propagation; instruments and
techniques) |
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| ISSN: | 0992-7689 1432-0576 |