A5018115859- Coastal and Marine Dynamics
- Ocean Waves and Remote Sensing
- Tropical and Extratropical Cyclones Research
- Oceanographic and Atmospheric Processes
- Aeolian processes and effects
- Coastal wetland ecosystem dynamics
- Geological formations and processes
- Advanced Computational Techniques and Applications
- Oil Spill Detection and Mitigation
- Geotechnical Engineering and Underground Structures
- Atmospheric chemistry and aerosols
- Target Tracking and Data Fusion in Sensor Networks
- Geophysics and Gravity Measurements
- Wave and Wind Energy Systems
- Underwater Acoustics Research
- Meteorological Phenomena and Simulations
- Hydrological Forecasting Using AI
- High voltage insulation and dielectric phenomena
- Geology and Paleoclimatology Research
- Seismic Waves and Analysis
- Thermal Analysis in Power Transmission
- Methane Hydrates and Related Phenomena
- Flood Risk Assessment and Management
- Marine and coastal ecosystems
- Fluid Dynamics Simulations and Interactions
Service Hydrographique et Océanographique de la Marine
2015-2024
Laboratoire de Biotechnologie et Chimie Marines
2020-2024
Geo-Ocean
2019
Laboratoire d’Océanologie et de Géosciences
2019
Laboratoire d’Études en Géophysique et Océanographie Spatiales
2013
Ifremer
2013
Environnements et Paléoenvironnements Océaniques et Continentaux
2009-2010
Université de Bordeaux
2009-2010
Centre National de la Recherche Scientifique
2009-2010
Abstract The energy level and its directional distribution are key observations for understanding the balance in wind-wave spectrum between generation, nonlinear interactions, dissipation. Here, properties of gravity waves investigated from a fixed platform Black Sea, equipped with stereo video system that resolves frequency f up to 1.4 Hz wavelengths 0.6 11 m. One representative record is analyzed, corresponding young wind peak p = 0.33 speed 13 m s −1 . These measurements allow separation...
This study describes a laboratory experiment on rip current circulations over moveable bed. Rip characteristics eight contrasting nature‐like beach morphologies are investigated. The seabed varied from reasonably alongshore uniform to strongly nonuniform with crescentic patterns and bar‐rip morphologies, representative of full morphological down‐state sequence. same offshore shore‐normal waves were generated by the wavemaker for situations mean water level sensitivity as function morphology...
Abstract Stereo imaging of the sea surface elevation provides unique field data to investigate geometry and dynamics oceanic waves. Typically, this technique allows retrieving 4-D ocean topography (3-D space + time) at high frequency (up 15–20 Hz) over a region area ~10 4 m 2 . fill existing wide gap between time-measurements, like local observation provided by wave-buoys, large-scale observations satellites. The analysis stereo images direct measurement wavefield without need any...
Abstract Wave runup is known to depend on offshore wave conditions and coastal morphology. While most field studies have focused low‐to‐mild‐sloping sandy beaches, measurements steep irregular rocky cliff profiles are still very scarce. Here we investigate the physical processes controlling in such environments range of applicability empirical formula. This study focuses cliffs (0.1 < tan β 0.4) Banneg Island, a small island located Molène archipelago, Brittany, France, occasionally...
Abstract Wave breaking is an important process for energy dissipation in the open ocean and coastal seas. It drives beach morphodynamics, controls air-sea interactions, determines when ship offshore structure operations can occur safely, influences on retrieval of properties from satellites. Still, wave lacks a proper physical understanding mainly due to scarce observational field data. Consequently, new methods data are required improve our current this process. In paper we present novel...
This paper presents results from an experiment designed to improve the understanding of relationship between extreme breaking waves and their mechanical loading on heritage offshore lighthouses. The experiment, conducted at La Jument, iconic French lighthouse, featured several records wave, current structure accelerations acquired during severe storm conditions, with individual as high 24 m. Data analysis focuses a event marked by strong peak in horizontal measured inside Jument. Thanks...
Hydro-sedimentary numerical models have been widely employed to derive suspended particulate matter (SPM) concentrations in coastal and estuarine waters. These hydro-sedimentary are computationally technically expensive nature. Here we used a less-expensive, well-established methodology of self-organizing maps (SOMs) along with hidden Markov model (HMM) profiles inorganic (SPIM). The concept the proposed work is benefit from all available data sets through use fusion methods machine learning...
Abstract This study presents a novel method for obtaining the probability of wave breaking ( P b ) deep water, dominant wind‐sea waves (i.e., made energy within ±30% peak frequency) derived from Gaussian field theory. For given input spectrum, we demonstrate how it is possible to derive joint density function between phase speed c and horizontal orbital velocity at crest u which model can be obtained. A nonlinear kinematic criterion consistent with framework further proposed. Our would...
de niveau recherche, publiés ou non, émanant des établissements d'enseignement et recherche français étrangers, laboratoires publics privés.
Abstract. The Action Program for Flood Prevention of Saint-Malo, France, requires the assessment coastal flooding risks and development a local warning system. first prerequisite is knowledge topography bathymetry bay Saint-Malo; acquisition new multibeam bathymetric data was performed in 2018 2019 to densify existing topo-bathymetric datasets produce two high resolution (20 m 5 m) digital terrain models. Second, hydrodynamics associated with were investigated through dense extensive...
Abstract. The French Flooding Prevention Action Program of Saint-Malo, France, requires the assessment coastal flooding risks and development a local flood warning system. first prerequisite is knowledge topography bathymetry bay Saint-Malo; acquisition new multibeam bathymetric data was performed in 2018 2019 to increase resolution existing topo-bathymetric datasets produce two high-resolution (20 5 m) digital terrain models. Second, hydrodynamics associated with were investigated through...
This paper presents a novel method for obtaining the probability wave of breaking ($P_b$) deep water, dominant wind-sea waves (that is, made energy within $\pm$30\% peak frequency) derived from Gaussian field theory. For given input spectrum we demonstrate how it is possible to derive joint density function between phase speed ($c$) and horizontal orbital velocity at crest ($u$) which model $P_b$ can be obtained. A non-linear kinematic criterion consistent with framework further proposed....