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Notice

AISB opportunities Bulletin Item

PhD offer: Multiscale techniques for the analysis of dynamic satellite oceanographic acquisitions, INRIA, France


Contact: Hussein.Yahia@inria.fr

PhD offer
=======
Title: Multiscale techniques for the analysis of dynamic satellite 
oceanographic acquisitions

Limite date: March 10, 2007

Subject description: The microcanonical multifractal formalism (MMF) comes 
from new research areas in the domains of multiscale signal analysis. It 
provides new ways of research for the analysis of geophysical acquisitions, 
notably satellite acquisitions in oceanography. The MMF allows the 
determination of super-geometric structures in the signal, these structures 
being strongly related to the statistical properties of the signal and to the 
dynamics of the oceanic flow.

From recent results about the advection of singularity exponents in the 
oceanic flow, the MMF has a strong potential in the analysis of ocean 
dynamics.

The PhD is centered around the following problematics:
-Use of the reconstruction properties in the MMF to provide new methods for 
the quantitative evaluation of surface ocean dynamics from Sea Surface 
Temperature (SST) and altimery satellite acquisitions. Combined optical flow 
on super-geometric structures and reconstruction properties of the MMF. 
-Use of the MMF for ocean colour acquisitions: patchiness and sub-mesoscale 
phenomena, algae blooms and upwellings.

During the PhD, theoretical results will be implemented into a software API 
called FluidExponents, developped jointly by INRIA (National Research 
Institute in Computer Science and Applied Mathematics, France) and ICM 
(Institute for Marine Sciences, Barcelona, Spain). FluidExponents is intented 
to be diffused in the geophysics community.

The applicant will make visits to ICM at Barcelona during the PhD, and to the 
LEGOS laboratory (Ocean Dynamics and Marine Biogeochemistry, head: V. Garcon) 
at Toulouse (France).

Skills
Knowledge in remote sensing and signal processing. Knowledge in wavelet theory 
is a plus. Knowledge of a programming langage. We will give the applicant a 
training in the developpment in a modern IDE (Integrated Development 
Environment) like Eclipse.

Person to contact
Please send a CV (1 or 2 pages) to
Mr. H. Yahia
Hussein.Yahia@inria.fr,
Tel: +33 (1) 39 63 53 57
INRIA-Rocquencourt,
BP 108
78153 Le Chesnay Cedex, France.

Location
The PhD is done at INRIA-Rocquencourt, near Paris.