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Record Details

Record 96 of 63338
Resolving the 180-degree ambiguity in vector magnetic field measurements: The 'minimum' energy solution
External Online Source: doi:10.1007/BF00680593
Author and Affiliation:
Metcalf, Thomas R.(Inst. for Astronomy, Honolulu, HI, United States)
Abstract: I 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.
Publication Date: Dec 01, 1994
Document ID:
19950042600
(Acquired Dec 28, 1995)
Accession Number: 95A74199
Subject Category: SOLAR PHYSICS
Document Type: Journal Article
Publication Information: Solar Physics; p. p. 235-242; (ISSN 0038-0938); 155; 2
Publisher Information: United States
Contract/Grant/Task Num: NAS8-37334; NSF ATM-93-03873; NAGW-1542
Financial Sponsor: NASA; United States
Organization Source: NASA; Washington, DC, United States
NASA Marshall Space Flight Center; Huntsville, AL, United States
Description: 8p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: AMBIGUITY; CURRENT DENSITY; ELECTRIC CURRENT; FREE ENERGY; MAGNETIC MEASUREMENT; SOLAR MAGNETIC FIELD; ALGORITHMS; OPTIMIZATION; ROBUSTNESS (MATHEMATICS); VECTORS (MATHEMATICS)
Imprint And Other Notes: Solar Physics vol. 155, no. 2 p. 235-242 December 1994
Availability Source: Other Sources
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