Long-term correlations in hourly wind speed records in Pernambuco, Brazil

作者：Santos Maira de Oliveira; Stosic Tatijana^*; Stosic Borko D

来源：Physica A: Statistical Mechanics and Its Applications , 2012, 391(4): 1546-1552.

DOI：10.1016/j.physa.2011.08.041

• Wind speed
• Power law
• Detrended fluctuation analysis

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.

• 出版日期2012-2-15