Physics
Scientific paper
Feb 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jgr....85..703s&link_type=abstract
Journal of Geophysical Research, vol. 85, Feb. 1, 1980, p. 703-709.
Physics
2
Convective Flow, Dynamic Models, Earth Ionosphere, Incoherent Scattering, Plasma Diffusion, Polar Regions, Alaska, Electric Fields, Flow Velocity, Geomagnetism, Magnetic Poles, Massachusetts, Universal Time
Scientific paper
A simple model of plasma convection at high latitudes is compared with data obtained from simultaneous measurements made by the incoherent scatter radars at Chatanika, Alaska and Millstone Hill, Mass. in June 1978. The horizontal plasma convection velocities were averaged for four days to emphasize gross features of the convection pattern and reduce the effects of substorms. The convection model includes the offset of 11.5 degrees between the geographic and geomagnetic poles, and a constant dawn/dusk magnetospheric electric field mapped to a circle about a center offset by 5 degrees in the antisunward direction from the magnetic pole. The differences in the convection pattern observed at the two sites are consistent with the predictions of the model. Results show that in analyzing high-latitude convection measurements the universal time has to be considered.
Doupnik Joe R.
Foster Christopher J.
Raitt William J.
Schunk Robert W.
Sojka Jan J.
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