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Magnetopause mapping to the ionosphere for northward IMF
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2007 (English)In: Annales Geophysicae, ISSN 0992-7689, E-ISSN 1432-0576, Vol. 25, no 12, 2615-2625 p.Article in journal (Refereed) Published
Abstract [en]

We study the topological structure of the magnetosphere for northward IMF. Using a magnetospheric magnetic field model we study the high-latitude response to prolonged periods of northward IMF. For forced solar wind conditions we investigate the location of the polar cap region, the polar cap potential drop, and the field-aligned acceleration potentials, depending on the solar wind pressure and IMF B-y and B-x changes. The open field line bundles, which connect the Earth's polar ionosphere with interplanetary space, are calculated. The locations of the magnetospheric plasma domains relative to the polar ionosphere are studied. The specific features of the open field line regions arising when IMF is northward are demonstrated. The coefficients of attenuation of the solar wind magnetic and electric fields which penetrate into the magnetosphere are determined.

Place, publisher, year, edition, pages
2007. Vol. 25, no 12, 2615-2625 p.
Keyword [en]
magnetospheric physics, auroral phenomena, magnetospheric configuration and dynamics, solar wind-magnetosphere interactions
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-35937DOI: 10.5194/angeo-25-2615-2007ISI: 000252860200014Scopus ID: 2-s2.0-37749038932OAI: oai:DiVA.org:kth-35937DiVA: diva2:429999
Note
QC 20110706Available from: 2011-07-06 Created: 2011-07-06 Last updated: 2017-12-11Bibliographically approved

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Cumnock, JudyBlomberg, Lars G.
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