Atmos. Chem. Phys. Discuss., 8, 17891-17905, 2008
© Author(s) 2008. This work is distributed
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This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
Scaling behaviour of the global tropopause
C. Varotsos, M. Efstathiou, and C. Tzanis
Department of Applied Physics, University of Athens, Athens, Greece

Abstract. Detrended fluctuation analysis is applied to the time series of the global tropopause height derived from the 1980–2004 daily radiosonde data, in order to detect long-range correlations in its time evolution.

Global tropopause height fluctuations in small time-intervals are found to be positively correlated to those in larger time intervals in a power-law fashion. The exponent of this dependence is larger in the tropics than in the middle and high latitudes in both hemispheres. Greater persistence is observed in the tropopause of the Northern than in the Southern Hemisphere.

This finding for the tropopause height variability should reduce the existing uncertainties in assessing the climatic characteristics.

Citation: Varotsos, C., Efstathiou, M., and Tzanis, C.: Scaling behaviour of the global tropopause, Atmos. Chem. Phys. Discuss., 8, 17891-17905, doi:10.5194/acpd-8-17891-2008, 2008.
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