Millstone Hill incoherent scatter observations of auroral convection over the 60-75 deg Lambda range. II - Initial results

Details Millstone Hill incoherent scatter observations of auroral convection over the 60-75 deg Lambda range. II - Initial results Millstone Hill incoherent scatter observations of auroral convection over the 60-75 deg Lambda range. II - Initial results

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jgr....85...41e&link_type=abstract

Journal of Geophysical Research, vol. 85, Jan. 1, 1980, p. 41-54.

Physics

7

Auroras, Convective Flow, Incoherent Scatter Radar, Atmospheric Models, Electric Fields, F Region, International Magnetospheric Study, Plasma Dynamics, Polar Caps

Scientific paper

The Millstone Hill radar, Westford, Massachusetts, has been upgraded for observations in support of the international magnetosphere study (IMS) by means of the addition of a 150-ft diameter fully steerable antenna. This antenna allows measurements of F region ion drifts, from which F region electric fields can be derived, using the existing UHF (68-cm wavelength) radar. The paper describes measurements of the electric field in the auroral zone over the 60-75 deg Lambda interval. The electric field is obtained by means of a least mean squares fit between the drifts obtained in four beam directions and a smoothly varying model with 204 degrees of freedom. Results are presented for 11 moderately quiet days in 1978 and these are compared with the models published by Heppner (1977).

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