PUMA
Istituto di Scienze Marine     
Beretta A., Roman H., Raicich F., Crisciani F. Long-time correlations of sea-level and local atmospheric pressure fluctuations at Trieste. In: Physica A-Statistical Mechanics and Its Applications, vol. 347 pp. 695 - 703. Elsevier Science Bv, 2005.
 
 
Abstract
(English)
A random walk analysis of pressure and sea-level fluctuations from daily data taken at Trieste during the period 1939-2002 is presented. It is shown that the associated time series display long-time autocorrelations up to time scales of several thousand of days, characterized by a Hurst exponent H approximate to 0.70 for sea-level and H approximate to 0.58 for pressure. The corresponding probability distribution functions depart from the Gaussian shape, displaying asymmetric tails. The series are found to be cross-correlated with a cross-correlation coefficient of about -0.76. (C) 2004 Elsevier B.V. All rights reserved.
DOI: 10.1016/j.physa.2004.08.027
Subject variability


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