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Multifractal analysis of fluorescence Lidar time series of Black Sea waters

G. J. VASILESCU1,* , C.P. CRISTESCU2, L. BELEGANTE1

Affiliation

  1. National Institute of R&D for Optoelectronics, Magurele, RO-077125, Romania
  2. Physics Department 1, Politehnica University of Bucharest, Romania

Abstract

The multifractal characteristics of the fluorescence signals from the surface Black Sea waters are analyzed using the structure function method. The fluorescence Lidar system was used to estimate in real time the distribution of dissolved organic matter and chlorophyll a during a 2007 spring campaign. The chlorophyll time series presents clear multifractal characteristics, while the dissolved organic matter presents a monofractal character. Various time series collected in the Constanta harbor area present the same general characteristics with small differences observed in the values of the exponent β but they all are restricted to the range between pink and red noise. The monofractal character is independent of the analyzed component demonstrating that the observed fluctuations are a property of the seawater itself..

Keywords

Fluorescence, Chlorophyll, structure function, multifractal.

Submitted at: May 27, 2010
Accepted at: June 16, 2010

Citation

G. J. VASILESCU, C.P. CRISTESCU, L. BELEGANTE, Multifractal analysis of fluorescence Lidar time series of Black Sea waters, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 6, pp. 1414-1420 (2010)