An empirical electric field model derived from Chatanika radar data

Details An empirical electric field model derived from Chatanika radar data An empirical electric field model derived from Chatanika radar data

Feb 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jgr....88..981f&link_type=abstract

Journal of Geophysical Research, vol. 88, Feb. 1, 1983, p. 981-987.

Physics

90

Atmospheric Electricity, Electric Fields, Incoherent Scatter Radar, Plasma Diagnostics, Auroral Zones, Convective Flow, Flow Velocity, Polar Substorms, Summer

Scientific paper

Plasma convection velocity observations obtained with the Chatanika, Alaska incoherent scatter radar have been used to prepare a quantitative empirical model of the convection electric field at auroral latitudes between 58 deg lambda and 75 deg lambda. Vector averaging of the individual days' data and smoothing across 2.5 hours of local time were used to reduce substorm perturbations. Tables of the vector electric field components at 300-km altitude have been prepared for moderately disturbed (Kp = 3) summer conditions. Resolution of the model is 0.5 deg of invariant latitude and one half hour of magnetic local time. The model field is asymmetric with the afternoon convection cell dominant in magnitude and spatial extent and corresponds to conditions in which the cross polar cap potential is approximately 70 kV

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