Local Correlation Tracking and the Magnetic Induction Equation

Recently, local correlation tracking has been applied to magnetograms to estimate photospheric velocities. This Letter demonstrates that local correlation tracking is inconsistent with the magnetic induction equation, which governs the temporal evolution of the photospheric magnetograms. A modified...

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Bibliographic Details
Published in:The Astrophysical journal 2005-10, Vol.632 (1), p.L53-L56
Main Author: Schuck, P. W
Format: Article
Language:English
Subjects:
Astronomy
Earth, ocean, space
Exact sciences and technology
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Summary:Recently, local correlation tracking has been applied to magnetograms to estimate photospheric velocities. This Letter demonstrates that local correlation tracking is inconsistent with the magnetic induction equation, which governs the temporal evolution of the photospheric magnetograms. A modified formulation, consistent with the magnetic induction equation, is presented for accurately following photospheric magnetic footpoints.
ISSN:1538-4357
0004-637X
1538-4357
DOI:10.1086/497633