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The Late Jurassic deposits in the South-East Basin (France) were interpreted as turbidites, tempestites or shallow water lobes… The controversy lasts since the former paper of Haug (1902). I contributed to develop the tempestite interpretation significantly.
The storm wave base is a very old concept in sedimentology. It is the water depth down to which geological recording of wave-dominated facies is possible. I promoted an extension of this concept to include paleo-systems submitted to extreme waves.
We reconstruct the paleo-hydrodynamics of the lake MegaChad. The comparison in between the computations and the observation of Holocene littoral paleo-geomorphic features (by satellite imagery) allows to determine which kind of paleo-winds occured during the Holocene.
The Gulf of Lions shows about 220 km of sandy shoreline delineated by limited rocky headland (such as Cap d’Agde or Saint Clair Hill). The edification of all the present-day barrier beaches is controled by a limited number of mechanisms. They have been quite well understood thanks to field works combining THR seismic survey, geological investigation and coring.
The littoral from Palavas to Aresquiers is a typical barred beach system. I studied when and how this sand barrier arose, how it delineated several lagoons from the open sea and how much the Holocene littoral architecture inherited from the Quaternary geological history.
InSAR allows to quantify very accurately the vertical/horizontal displacements through time of local points onto the earth surface. We use InSAR to quantify the subtile subsidence of jetties in coastal areas.
Shocks between grains during coastal transport and water mass compression drive a seismic noise which is recorded by the devices traditionnally dedicated to the survey of earthquake activity. We explore this signature to quantify some relevant coastal informations on sediment transport and wave features to the shoreline.
The analysis of the time-spatial distribution of peculiar patterns within the ambiant noise recorder at seismometers and OBS allows to determine the track of typhoons.
Fuzzy logic inference systems (FIS) allows to determine reccurent matching patterns in trends of data. Georgios Sylaïos (a friend at University of Xanthi) developed a methodology to predict wave features with FIS. It is applied to the forecasting of coastal wave regimes.