High altitude electrostatic fields driving subauroral ion drifts

dc.contributor.author	Lemaire, J.F.
dc.contributor.author	Roth, M.
dc.contributor.author	De Keyser, J.
dc.date	1998
dc.date.accessioned	2017-05-19T10:56:25Z
dc.date.available	2017-05-19T10:56:25Z
dc.identifier.uri	https://orfeo.belnet.be/handle/internal/5395
dc.description	A subauroral ion drift (SAID) layer is characterised by a narrow peak of westward ion drift speed exceeding 1000 m/s. It is confined in less than 1 degree in latitude and located equatorward of the nightside auroral zone but poleward of the plasmapause. We propose a mechanism for the narrow peak electric field driving this phenomenon: an electrostatic potential is produced by thermo-electric charge separation across the front edge of a hot plasma cloud moving inward from the tail and penetrating into the colder background plasma in the plasmatrough and at the plasmapause. Quantitative calculations corroborate this scenario.
dc.language	eng
dc.title	High altitude electrostatic fields driving subauroral ion drifts
dc.type	Article
dc.subject.frascati	Physical sciences
dc.audience	Scientific
dc.source.title	COSPAR Colloquia Series: Magnetospheric Research with Advanced Techniques Proceedings of the 9th COSPAR Colloquim, 15-19 April 1996, Beijing, China
dc.source.volume	9
dc.source.page	61-64
Orfeo.peerreviewed	No
dc.identifier.doi	10.1016/S0964-2749(98)80010-3
dc.identifier.scopus	2-s2.0-77957047953