Title: 
==============
Characteristic size scale of Supergranulation

Lead Investigator:
=======
John G. Beck

Team Members:
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Roger K. Ulrich
Frank Hill

Local Coordinator:
==================


Lead Programmer:
=====


Technical Summary:
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 The size scale of supergranulation has been given as about 30 Mm
(Simon and Leighton, 1964) suggesting a possible convective driving
mechanism for supergranulation stemming from the Helium ionization 
region.  Alternatively, an inverse cascade of energy from 
granulation size scale to the supergranulation size scale has 
been proposed to explain this phenomenon.  The spectrum of
supergranule sizes predicted by an inverse cascade process
differs from that predicted by deep convective motions.  Using
high resolution data from SOI we propose to study the spatial
spectrum of supergranules to determine support for these two
models.
        

Proposal Text:
=======================
	We plan on using High Resolution images taken from
the off-pointing run of SOHO to study the spectrum of 
supergranule size scales.

See Also:
=========
Simon G.W., Leighton, R.B. Ap. J. 140, 1120
Worden, S.P. 1975, Ph.D. Thesis: Solar Supergranulation, Univ. of Arizona