On the origin of electric fields in the plasmasphere

Whistler data recorded continuously at Sanae, Antarctica (L=4) over a 24 hour period of quiet magnetic conditions (average Kp=1) have been analysed to obtain plasma convection patterns. A duskside plasmaspheric bulge is present, centered on 1700 UT. The westward electric fields determined for this b...

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Bibliographic Details
Main Authors: Rash,J.P.S., Hansen,H.J., Scourfield,M.W.J.
Format: Report
Language:English
Published: Department of Physics, University of Natal/Department of Physics, University of Natal/Department of Physics, University of Natal 1985
Subjects:
SANAE
Antarc*
Antarctica
Memoirs of National Institute of Polar Research
Polar Research
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1812
http://id.nii.ac.jp/1291/00001812/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1812&item_no=1&attribute_id=18&file_no=1
Description
Summary:Whistler data recorded continuously at Sanae, Antarctica (L=4) over a 24 hour period of quiet magnetic conditions (average Kp=1) have been analysed to obtain plasma convection patterns. A duskside plasmaspheric bulge is present, centered on 1700 UT. The westward electric fields determined for this bulge region suggest that quiet time plasma drift is predominantly controlled by internal ionospheric current systems of dynamo origin, while in a limited local time sector there is some evidence of the magnetospheric dawn-to-dusk electric field being responsible.

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