Ionospheric Winds in the Auroral Zone

摘要: Abstract : Observations of the drift velocity rocket-borne chemical releases have been used to determine neutral wind and ion in altitude range 90-230 km at ESRANGE, Kiruna. The cloud measurements demonstrated orthogonality simultaneous magnetic perturbation vector ground level F region ionosphere. This result implies that auroral zone Hall currents are predominantly responsible for part total seen due ionospheric currents. A comparison profiles obtained under quiet disturbed geomagnetic conditions has shown observed west-east component above about 120 is directly correlated with mean south-north over a period two-three hours prior observations. correlation acceleration atmosphere by ions drifting meridional electric field. Both direct functions locally enhanced field electron (and hence ion) density. (Author)