Morphology of high latitude auroral electron precipitations obtained by the Aureol-3 satellite

Stepanova, M; Luizar, O; Antonova, EE; Bosqued, JM; Kovrazhkin, RA

Abstract

Latitudinal distribution of auroral electron precipitations was studied using the Aureol-3 satellite data. Analysis of 148 events in the morning, night, and evening sectors showed that structures of all types have a wide MLT distribution. However, during low geomagnetic activity the distribution of latitudinally asymmetric events is close to Iijima and Potemra's Region 1 and 2 current picture: The equatorward events prevail in the morning and postmidnight sectors, and the polarward ones - in the evening and premidnight. An increase in geomagnetic activity makes the MLT distribution of different types of events more uniform. This fact may indicate existence of the multi-layer structure of currents and consequently medium scale electric fields, in which the maximum currents considerably exceed the average values observed in the Region 1 and 2. ©2002 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

Más información

Título según WOS: Morphology of high latitude auroral electron precipitations obtained by the Aureol-3 satellite
Título según SCOPUS: Morphology of high latitude auroral electron precipitations obtained by the aureol-3 satellite
Título de la Revista: ADVANCES IN SPACE RESEARCH
Volumen: 30
Número: 12
Editorial: ELSEVIER SCI LTD
Fecha de publicación: 2002
Página de inicio: 2719
Página final: 2724
Idioma: English
URL: http://linkinghub.elsevier.com/retrieve/pii/S0273117702803921
DOI:

10.1016/S0273-1177(02)80392-1

Notas: ISI, SCOPUS