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Título : Common turbulent signature in sea surface temperature and chlorophyll maps
Autor : Nieves, Verònica, Llebot, Clara, Turiel, Antonio, Solé, Jordi, García-Ladona, Emilio, Estrada, Marta, Blasco, Dolors
Palabras clave : Temperature and chlorophyll satellite images
Microcanonical multifractal formalism
Currents and energy transfers in the oceans
Fecha de publicación : 1-Dec-2007
Editor: American Geophysical Union
Resumen: Oceans and 2D turbulence present similar characteristics, as for instance the dominant role played by eddies in energy and matter transport. However, providing a complete justification of this analogy is difficult, as it requires knowledge of the ocean's dynamic state at different instants and over large scales. Recently, new techniques coming from the Microcanonical Multifractal Formalism have made it possible to infer the streamlines from the analysis of satellite images of some scalar variables. In this paper, we will show that this information is enough to characterize the scaling properties of the energy cascade, which is manifested as a multifractal signature; further, the multifractal signature is obtained at each location in a local basis. Different scalars obtained from satellite measurements such as Sea Surface Temperature or Surface Chlorophyll Concentration present essentially the same multifractal structure, which is interpreted as a consequence of the pervading character of the turbulent advection at the scales of observation.
Descripción : 5 pages, 3 figures.-- Full-text version available Open Access at:
Versión del editor:
ISSN: 0094-8276
DOI: 10.1029/2007GL030823
Citación : Geophysical Research Letters 34(23): L23602 (2007)
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