Volume 52, Number 1, October I 2000
|Page(s)||40 - 46|
|Published online||01 September 2002|
Break-up of stratus cloud structure predicted from non-Brownian motion liquid water and brightness temperature fluctuations
Department of Meteorology, Pennsylvania State University
University Park, PA 16802, USA
2 Institute of Electronics, Bulgarian Academy of Sciences 72 Tzarigradsko chaussee, Sofia 1784, Bulgaria
3 SUPRAS and GRASP, Institute of Physics, B5, University of Liège B-4000 Liège, Belgium
4 Pacific Northwest National Laboratory, U.S. Department of Energy Richland, WA 99352, USA
Accepted: 28 July 2000
The Detrended Fluctuation Analysis statistical method is applied to microwave radiometer and infrared thermometer radiance data in order to examine stratus cloud dynamics. The existence of long-range power law correlations in stratus cloud liquid water path and radiance (brightness temperature) fluctuations is demonstrated to occur over about a two-hour period. Moreover, using a finite-size (time) interval window, a change from non-Brownian to Brownian fluctuation regimes is clearly shown to define the cloud structure changes.
PACS: 05.45.Df – Fractals / 05.45.Tp – Time series analysis / 05.40.Jc – Brownian motion
© EDP Sciences, 2000
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