Samuel Viboud
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View article: Laboratory experiments of rotating stratified exchange flows over a sediment bed
Laboratory experiments of rotating stratified exchange flows over a sediment bed Open
View article: Rossby waves driven by the Mid Mediterranean Jet impact the Eastern Mediterranean mesoscale dynamics
Rossby waves driven by the Mid Mediterranean Jet impact the Eastern Mediterranean mesoscale dynamics Open
The most prominent and persistent feature of the eastern Mediterranean Levantine Basin (LB) is the warm anticyclonic Cyprus Eddy (CE) located above the Eratosthenes Seamount (ESM). This eddy periodically couples with two smaller cyclonic a…
View article: From internal waves to turbulence in a stably stratified fluid
From internal waves to turbulence in a stably stratified fluid Open
We report on the statistical analysis of stratified turbulence forced by large-scale waves. The setup mimics some features of the tidal forcing of turbulence in the ocean interior at submesoscales. Our experiments are performed in the larg…
View article: Experimental observations of internal wave turbulence transition in a stratified fluid
Experimental observations of internal wave turbulence transition in a stratified fluid Open
International audience
View article: Experimental observations of internal wave turbulence transition in a stratified fluid
Experimental observations of internal wave turbulence transition in a stratified fluid Open
Recent developments of the weak turbulence theory applied to internal waves exhibit a power-law solution of the kinetic energy equation close to the oceanic Garrett \& Munk spectrum, confirming weakly nonlinear wave interactions as a likel…
View article: Laboratory experiments reveal intrinsic self-sustained oscillations in ocean relevant rotating fluid flows
Laboratory experiments reveal intrinsic self-sustained oscillations in ocean relevant rotating fluid flows Open
View article: Turbulent jet through porous obstructions under Coriolis effect: an experimental investigation
Turbulent jet through porous obstructions under Coriolis effect: an experimental investigation Open
View article: Reynolds-number scaling of a vorticity-annihilating boundary layer
Reynolds-number scaling of a vorticity-annihilating boundary layer Open
View article: Impact of dense-water flow over a sloping bottom on open-sea circulation: laboratory experiments and an Ionian Sea (Mediterranean) example
Impact of dense-water flow over a sloping bottom on open-sea circulation: laboratory experiments and an Ionian Sea (Mediterranean) example Open
The North Ionian Gyre (NIG) displays prominent inversions on decadal scales. We investigate the role of internal forcing induced by changes in the horizontal pressure gradient due to the varying density of Adriatic Deep Water (AdDW), which…
View article: Can laboratory experiments reach regimes relevant for the oceanic dynamics?
Can laboratory experiments reach regimes relevant for the oceanic dynamics? Open
<p>Atmospheric and oceanic energy spectra are characterized by global scaling laws, suggesting a common mechanism driving the energy route to dissipation. Although several possible theories have been proposed, it is not clear yet wha…
View article: JEts through VEegetation in a Rotating Basin
JEts through VEegetation in a Rotating Basin Open
Contaminants, nutrients and sediment particles flow into inland and coastal water bodies often forming turbulent jets. The aim of the present project was to improve our capability to describe how jets interact with the environment in which…
View article: JEts through VEegetation in a Rotating Basin
JEts through VEegetation in a Rotating Basin Open
Contaminants, nutrients and sediment particles flow into inland and coastal water bodies often forming turbulent jets. The aim of the present project was to improve our capability to describe how jets interact with the environment in which…
View article: Comment on os-2020-122
Comment on os-2020-122 Open
Abstract. The North Ionian Gyre (NIG) displays prominent inversions on decadal scales. We investigate the role of internal forcing induced by changes in the horizontal pressure gradient due to the varying density of Adriat…
View article: Comment on os-2020-122
Comment on os-2020-122 Open
Abstract. The North Ionian Gyre (NIG) displays prominent inversions on decadal scales. We investigate the role of internal forcing induced by changes in the horizontal pressure gradient due to the varying density of Adriat…
View article: Generation of weakly nonlinear turbulence of internal gravity waves in the Coriolis facility
Generation of weakly nonlinear turbulence of internal gravity waves in the Coriolis facility Open
We investigate experimentally stratified turbulence forced by waves. Stratified turbulence is present in oceans and it is expected to be dominated by nonlinear interaction of internal gravity waves as described by the Garrett & Munk spectr…
View article: Instabilities and layering of a heated laboratory anticyclone
Instabilities and layering of a heated laboratory anticyclone Open
International audience
View article: Ice front blocking of ocean heat transport to an Antarctic ice shelf
Ice front blocking of ocean heat transport to an Antarctic ice shelf Open
<p>Shoreward oceanic heat flux in deep channels on the continental shelf typically far exceeds that required to match observed ice shelf melt rates, suggesting other critical controls.  IN the present study we study the dept…
View article: Ice front blocking of ocean heat transport to an Antarctic ice shelf
Ice front blocking of ocean heat transport to an Antarctic ice shelf Open
View article: Influence of Coriolis Force Upon Bottom Boundary Layers in a Large‐Scale Gravity Current Experiment: Implications for Evolution of Sinuous Deep‐Water Channel Systems
Influence of Coriolis Force Upon Bottom Boundary Layers in a Large‐Scale Gravity Current Experiment: Implications for Evolution of Sinuous Deep‐Water Channel Systems Open
Oceanic density currents in many deep‐water channels are strongly influenced by the Coriolis force. The dynamics of the bottom boundary layer in large geostrophic flows and low Rossby number turbidity currents are very important for determ…
View article: Gap-leaping and intruding western boundary currents investigated with the large Coriolis-LEGI rotating platform
Gap-leaping and intruding western boundary currents investigated with the large Coriolis-LEGI rotating platform Open
International audience
View article: Ice front blocking in a laboratory model of the Antarctic ice shelf
Ice front blocking in a laboratory model of the Antarctic ice shelf Open
Mass loss from the Antarctic Ice Sheet to the ocean has increased in recent decades, largely because the thinning of its floating ice shelves has allowed the outflow of grounded ice to accelerate. Enhanced basal melting of the ice shelves …
View article: Ice front blocking in a laboratory model of the Antarctic ice shelf
Ice front blocking in a laboratory model of the Antarctic ice shelf Open
Mass loss from the Antarctic Ice Sheet to the ocean has increased in recent decades, largely because the thinning of its floating ice shelves has allowed the outflow of grounded ice to accelerate. Enhanced basal melting of the ice shelves …
View article: Laboratory modeling of gap-leaping and intruding western boundary currents under different climate change scenarios
Laboratory modeling of gap-leaping and intruding western boundary currents under different climate change scenarios Open
Western boundary currents (WBCs), such as, the Kuroshio and the Gulf Stream, are very intense currents flowing along the western boundaries of the oceans.WBCs -and their respective extensions- have an important effect on climate because of…
View article: Laboratory modeling of gap-leaping and intruding western boundary currents under different climate change scenarios
Laboratory modeling of gap-leaping and intruding western boundary currents under different climate change scenarios Open
Western boundary currents (WBCs), such as, the Kuroshio and the Gulf Stream, are very intense currents flowing along the western boundaries of the oceans.WBCs -and their respective extensions- have an important effect on climate because of…
View article: The dynamics of bi-directional exchange flows: implication for morphodynamic change within estuaries and sea straits
The dynamics of bi-directional exchange flows: implication for morphodynamic change within estuaries and sea straits Open
Environmental and geophysical flows, including dense bottom gravity currents in the ocean and buoyancy-driven exchange flows in marginal seas, are strongly controlled by topographic features. These are known to exert significant influence …
View article: The dynamics of bi-directional exchange flows: implication for morphodynamic change within estuaries and sea straits
The dynamics of bi-directional exchange flows: implication for morphodynamic change within estuaries and sea straits Open
Environmental and geophysical flows, including dense bottom gravity currents in the ocean and buoyancy-driven exchange flows in marginal seas, are strongly controlled by topographic features. These are known to exert significant influence …
View article: Adriatic-Ionian Bimodal Oscillating System - Coriolis Rotating Platform Experiment
Adriatic-Ionian Bimodal Oscillating System - Coriolis Rotating Platform Experiment Open
Numerical modelling has not yet offered satisfactory description of the functioning of the Adriatic/ Ionian and Levantine system. So far, the explanation for the inversion of the near-surface circulation has been mainly sought in the wind …
View article: Adriatic-Ionian Bimodal Oscillating System - Coriolis Rotating Platform Experiment
Adriatic-Ionian Bimodal Oscillating System - Coriolis Rotating Platform Experiment Open
Numerical modelling has not yet offered satisfactory description of the functioning of the Adriatic/ Ionian and Levantine system. So far, the explanation for the inversion of the near-surface circulation has been mainly sought in the wind …
View article: JEt interacting with VEgetation in a Rotating Basin
JEt interacting with VEgetation in a Rotating Basin Open
Contaminants, nutrients and sediment particles flow into our inland and coastal water bodies often forming turbulent jets. Some examples are outflows from rivers, sources and discharges entering the ocean through natural obstructions. Mixi…
View article: Identifying four-wave-resonant interactions in a surface gravity wave turbulence experiment
Identifying four-wave-resonant interactions in a surface gravity wave turbulence experiment Open
The nonlinear dynamics of waves at the sea surface is believed to be ruled by the Weak Turbulence framework. In order to investigate the nonlinear coupling among gravity surface waves, we developed an experiment in the Coriolis facility wh…