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CHAMP observation of intense kilometer-scale field-aligned currents, evidence for an ionospheric Alfvén resonator

Description : Bursts of very intense kilometer-scale field-aligned currents (KSFACs) are observed quite frequently by the CHAMP satellite when passing through the auroral region. In extreme cases estimated current densities exceed 3 mA/m². Typical scale sizes of these KSFACs are 1 km.

The low-Earth, pola...
Language(s) : English
Subject(s) : [SDU:OCEAN] Sciences of the Universe/Ocean, Atmosphere , [SDU:STU] Sciences of the Universe/Earth Sciences
Publisher(s) :
Contributor(s) :
Source(s) : Annales Geophysicae
Publication Date(s) : 2007-07-30