European Turbulence Conference 2015

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16:00
15 mins

Scaling and intermittency in ocean turbulence: analysis of coastal water optical properties and sea surface temperature (SST).
P.R. Renosh, Francois Schmitt, Hubert Loisel

Session: Intermittency and scaling 2
Session starts: Tuesday 25 August, 15:00
Presentation starts: 16:00
Room: Room H

P.R. Renosh (Univ Lille UMR 8187 LOG)
Francois Schmitt (CNRS)
Hubert Loisel (ULCO, UMR 8187 LOG)

Abstract:
We consider here some scaling and intermittency properties of oceanic turbulence, with a general aim of considering the impact of turbulence on the bio-optical dynamics. For that purpose, we tried two different approaches, using in situ and satellite data. For the in situ study we adopted one dimensional and for the satellite two dimensional approaches. Different techniques such as Fourier power spectrum, Empirical mode of decomposition (EMD), Hilbert spectral analysis (HSA) have been used for analyzing the intermittency characteristics of the in situ data. For analyzing the multi-scale properties of the satellite images, we have considered Structure functions (SF) and Fourier power spectrum (1D and 2D). The general objective is to understand the multi-scale oceanic variability using scaling tools developed in the field of intermittent turbulence studies.