Physics
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13...72l&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 13, Jan. 1986, p. 72-75.
Physics
59
Convection, Interplanetary Magnetic Fields, Ionospheric Currents, Plasma Currents, Bow Waves, Eiscat Radar System (Europe), F Region, Ion Temperature
Scientific paper
The UK Special Programme 'Pola' uses the European incoherent scatter (EISCAT) radar to study high-latitude plasma convection in the F-region of the ionosphere at invariant latitudes between about 71 deg and 75 deg. For a nine-hour period on Oct. 27, 1984, simultaneous observations of the IMF were obtained from the UK satellite (UKS) of the Active Magnetospheric Particle Tracer Explorer (AMPTE) mission. The observations are evaluated. Very high time resolution data from EISCAT show that ion temperature and line-of-sight velocity changes, observed 11 minutes after a southward turning of the IMF, were propagated eastward around the afternoon sector with speeds of the order of 1 km/s. The data show the establishment of a new pattern of enhanced convection in the high latitude ionosphere.
Bromage Barbara J. I.
Cowley Stan W. H.
Lockwood Marian
van Eyken Anthony P.
Willis David M.
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