Fractal Analysis of Deep Ocean Current Speed Time Series

摘要: AbstractFractal properties of deep ocean current speed time series, measured at a single-point mooring on the Madeira Abyssal Plain 1000- and 3000-m depth, are explored over range between one week 5 years, by using detrended fluctuation analysis multifractal methodologies. The reveals existence two subranges with different scaling behaviors. Long-range temporal correlations following power law found in time-scale approximately 50 days while Brownian motion–type behavior is observed for shorter scales. approach underlines structure whose intensity decreases depth. shuffled surrogate versions original series shows that multifractality mainly due to long-range correlations, although there weak nonlinear contribution 1000-m which confirmed o...