On the non-Gaussian nature of ionospheric vorticity

Chisham, G.; Freeman, M. P.. 2010 On the non-Gaussian nature of ionospheric vorticity. Geophysical Research Letters, 37, L12103. 5, pp. 10.1029/2010GL043714

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Abstract/Summary

We present, for the first time, the probability density function (PDF) of ionospheric vorticity measurements made by the SuperDARN HF radars. We show that the PDF is typically heavy-tailed and best modelled by the q-exponential distribution across most of the ionosphere, except in the dayside region 1 current region where the Weibull distribution provides the best model. We identify these distributions as stationary solutions of a Fokker-Planck equation whose corresponding Langevin equation can be derived from the classic baroclinic and barotropic vorticity equations, respectively.

Item Type:	Article
Identification Number/DOI:	10.1029/2010GL043714
Programmes:	BAS Programmes > Polar Science for Planet Earth (2009 - ) > Environmental Change and Evolution
ISSN:	0094-8276
NORA Subject Terms:	Atmospheric Sciences Mathematics Space Sciences
Date made live:	06 Jul 2010 16:04
URI:	http://nora.nerc.ac.uk/id/eprint/10034

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