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Nonlin. Processes Geophys., 13, 571-576, 2006
https://doi.org/10.5194/npg-13-571-2006
© Author(s) 2006. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
 
17 Oct 2006
Nonlinear correlations of daily temperature records over land
I. Bartos and I. M. Jánosi Department of Physics of Complex Systems, Eötvös University, Budapest, Hungary
Abstract. We present a near global statistics on the correlation properties of daily temperature records. Data from terrestrial meteorological stations in the Global Daily Climatology Network are analyzed by means of detrended fluctuation analysis. Long-range temporal correlations extending up to several years are detected for each station. In order to reveal nonlinearity, we evaluated the magnitude of daily temperature changes (volatility) by the same method. The results clearly indicate the presence of nonlinearities in temperature time series, furthemore the geographic distribution of correlation exponents exhibits well defined clustering.

Citation: Bartos, I. and Jánosi, I. M.: Nonlinear correlations of daily temperature records over land, Nonlin. Processes Geophys., 13, 571-576, https://doi.org/10.5194/npg-13-571-2006, 2006.
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