A Survey of the Storm-Time Ionospheric Scatter Seen by the Mid-Latitude SuperDARN Wallops Island Radar

Details A Survey of the Storm-Time Ionospheric Scatter Seen by the Mid-Latitude SuperDARN Wallops Island Radar A Survey of the Storm-Time Ionospheric Scatter Seen by the Mid-Latitude SuperDARN Wallops Island Radar

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsa21a0266o&link_type=abstract

American Geophysical Union, Fall Meeting 2005, abstract #SA21A-0266

Physics

2441 Ionospheric Storms (7949), 2443 Midlatitude Ionosphere, 2447 Modeling And Forecasting, 2463 Plasma Convection (2760), 2731 Magnetosphere: Outer

Scientific paper

We present a survey of the ionospheric backscatter from the SuperDARN Wallops Island radar versus magnetic latitude and local time. Since the radar came into operation in early May 2005 it has made frequent observations of disturbed and storm time electric fields and plasma motions at magnetic latitudes of 50-70 degrees. On occasion, the radar observes enhanced flows for several hours in similar local time sectors for several consecutive days. We show several examples of penetration electric fields and discuss the importance of these lower-latitude convection measurements in the determination of the total cross polar cap potential. Without data from mid-latitudes, the SuperDARN polar cap potential may be significantly underestimated during disturbed conditions and geomagnetic storms. We also present initial results from our efforts to develop an observational model of mid-latitude storm-time convection. This will be the first step in developing an observational model of the spatial and temporal evolution of inner magnetosphere electric fields during storm-time conditions.

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