Nonlinear statistics of daily temperature fluctuations reproduced in a laboratory experiment

Balázs Gyüre, Imre Bartos, Imre M. Jánosi
2007 Physical Review E  
The near-global statistics of daily mean temperature changes reveals a robust asymmetry. Warming steps have significantly higher frequency and lower average magnitude than those of cooling steps for most weather stations. This is a markedly nonlinear feature: Fourier surrogate time series exhibit completely symmetric increment statistics. The obtained geographic distribution of asymmetry parameters suggested an experimental test in a classical rotating tank setup. Temperature measurements in
more » ... dynamical regime of geostrophic turbulence reproduce quantitatively the strong asymmetry and spatial dependence of field observations. The statistics might be relevant in other systems of nonequilibrium steady states.
doi:10.1103/physreve.76.037301 pmid:17930373 fatcat:du52yio63ffydiu2o2676mxpei