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Title: On the Fractal Structure of Solar Supergranulation
Authors: Paniveni, U
Krishan, V
Singh, J
Srikanth, R
Keywords: SOHO;Supergranulation Structure;Kinetic Energy;Isobaric
Issue Date: Oct-2005
Publisher: Springer
Citation: Solar Physics, Vol. 231, No. 1 - 2, pp. 1 - 10
Abstract: We employ fractal analysis to study the complexity of supergranulation structure using the Solar and Heliospheric Observatory (SOHO) dopplergrams. Our data consists of 200 visually selected supergranular cells, for which we find a broad, slightly asymmetric dispersion in the size distribution, with the most probable size around 31.9 Mm. From the area perimeter relation, we deduce a fractal dimension D of about 1.25. This is consistent with that for isobars, and suggests a possible turbulent origin of supergranulation. By relating this to the variances of kinetic energy, temperature and pressure, it is concluded that the supergranular network is close to being isobaric and that it has a possible turbulent origin.
Description: Restricted Access
ISSN: 00038-0938
Appears in Collections:IIAP Publications

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