期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 391, 期 4, 页码 1546-1552出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physa.2011.08.041
关键词
Wind speed; Power law; Detrended fluctuation analysis
资金
- Brazilian federal agency CNPq [CASADINHO-620113/2008]
- Brazilian federal agency CAPES [PROCAD-1396/2007, PROCAD-2273/2008]
We study the statistical properties of hourly wind speed time series detected at four weather stations in the state of Pernambuco, Brazil, in the period 2008-2009. We find that the average and maximum hourly wind speeds deviate from a mutual linear relationship, and that they may be well explained individually by a Weibull distribution, however, with different shape parameter values. On the other hand, the long-term correlations of both of these observables obey the same power-law behavior, with two distinct scaling regimes. Our results agree with previous studies on wind speed series correlations in other regions of the world, which is suggestive of universal behavior. (C) 2011 Elsevier B.V. All rights reserved.
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