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Published online by Cambridge University Press: 08 February 2017
We model the evolution of photospheric field elements by treating them as mean field structures undergoing a nonlinear self-interaction mediated by much smaller-scale, convectively driven plasma turbulence. Distributed fields can gather into discrete, strong elements of a minimum permitted scale. Also studied are the transport of flux from dissolving elements and to growing elements via weak intermediate fields and the cancellation of adjacent emements of opposite polarity.