Characterization of Nightside Mid-latitude Irregularities Observed with the Blackstone SuperDARN Radar

Details Characterization of Nightside Mid-latitude Irregularities Observed with the Blackstone SuperDARN Radar Characterization of Nightside Mid-latitude Irregularities Observed with the Blackstone SuperDARN Radar

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsa23c..06r&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SA23C-06

Physics

[2439] Ionosphere / Ionospheric Irregularities, [2443] Ionosphere / Midlatitude Ionosphere, [2471] Ionosphere / Plasma Waves And Instabilities

Scientific paper

The new mid-latitude SuperDARN radars at Wallops Island and Blackstone observe strong coherent backscattering on an almost nightly basis from latitudes that appear to be subauroral. One study has demonstrated an excellent correlation with the occurrence of density and temperature gradients within the ionospheric projection of the plasmapause (Greenwald et al., Geophys. Res. Lett. [2006]). We have processed all the data collected with the Blackstone radar since its inception in February 2008 for a characterization of the occurrence and properties of ‘plasmapause’ scatter. We have determined the local time and Kp dependencies of the activity and the relation of the spatial distribution of the irregularities to magnetospheric boundaries and ionospheric density gradients. We establish that the irregularities are a feature of the quiet-time subauroral ionosphere and provide a valuable diagnostic of the electric fields in the inner magnetosphere.

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