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Details of Large Scale Solar Motions Revealed by Granulation Test Particles

Simon, G. W. and November, L. J. and Ferguson, S. and Shine, R. and Tarbell, T. and Title, A. and Topka, T. and Zirin, H. (1989) Details of Large Scale Solar Motions Revealed by Granulation Test Particles. In: Solar and Stellar Granulation. NATO ASI Series. Series C. No.263. Springer Netherlands , Dordrecht, pp. 371-377. ISBN 9789401068994.

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We present details of large scale horizontal (mesogranular, supergranular) flows which have been discovered by measuring the motions of granules with local correlation techniques. Not only do the flows expel magnetic field from the centers of source regions to their boundaries, thus forming the well-known supergranular network, but they also exhibit convergence into sinks, and significant vorticity. The displacement, distortion, and twisting of magnetic field by such motions may lead to a better understanding of solar flare buildup processes, and an increased ability to predict the occurrence of flares.

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Additional Information:© Kluwer Academic Publishers 1989. Operated by the Association of Universities for Research in Astronomy, Inc., under contract with the National Science Foundation; partial support for the National Solar Observatory is provided by the USAP under a Memorandum of Understanding with the NSF.
Subject Keywords:Granulation; mesogranulation; supergranulation; atmospheric motions; large scale flows; divergence; vorticity magnetic fields
Series Name:NATO ASI Series. Series C
Issue or Number:263
Record Number:CaltechAUTHORS:20201009-102843439
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:105955
Deposited By: George Porter
Deposited On:09 Oct 2020 22:10
Last Modified:16 Nov 2021 18:48

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