Physics
Scientific paper
Apr 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cosre..46..114s&link_type=abstract
Cosmic Research, Volume 46, Issue 2, pp.114-119
Physics
94.20.Vv
Scientific paper
Characteristics of the polarization jet (PJ) are considered on the basis of measurements made in 1989 1992 at the ionospheric stations Yakutsk ( L = 3.0, λ = 129.6°) and Podkamennaya Tunguska ( L = 3.0, λ = 90.0°) separated in longitude. Using the data of these stations, the result obtained earlier (that the formation of PJ during disturbances in the near-midnight sector occurs at the expansion phase of a substorm) is confirmed. At isolated magnetic disturbances with AE > 500 nT in the 11:00 16:00 UT interval, the PJ band covers an MLT sector of 3 h between the Yakutsk and Podkamennaya Tunguska stations. The time of the PJ beginning at the Podkamennaya Tunguska station for the majority of events is 45 60 min behind the PJ beginning at the Yakutsk station. This corresponds to the westward motion of a PJ source with a velocity of ˜3 MLT h per hour.
Bondar' E. D.
Khalipov V. L.
Stepanov A. E.
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