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Resolving the 180-degree ambiguity in vector magnetic field measurements: The 'minimum' energy solutionI present a robust algorithm that resolves the 180-deg ambiguity in measurements of the solar vector magnetic field. The technique simultaneously minimizes both the divergence of the magnetic field and the electric current density using a simulated annealing algorithm. This results in the field orientation with approximately minimum free energy. The technique is well-founded physically and is simple to implement.
Document ID
19950042600
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Metcalf, Thomas R. (Inst. for Astronomy, Honolulu, HI United States)
Date Acquired
August 16, 2013
Publication Date
December 1, 1994
Publication Information
Publication: Solar Physics
Volume: 155
Issue: 2
ISSN: 0038-0938
Subject Category
SOLAR PHYSICS
Funding Number(s)
CONTRACT_GRANT: NAGW-1542
CONTRACT_GRANT: NSF ATM-93-03873
CONTRACT_GRANT: NAS8-37334
Distribution Limits
Public
Copyright
Other