@misc{SommeriaVinczeFenyvesietal., author = {Sommeria, Joel and Vincze, Miklos and Fenyvesi, Nora and Klein, Marten and Viboud, Samuel and Ashkenazy, Yosef}, title = {Ekman layer resonance in an ocean-analog rotating tank experiment}, series = {17th European Turbulence Conference, Turin, 3 Sep 2019 - 6 Sep 2020}, journal = {17th European Turbulence Conference, Turin, 3 Sep 2019 - 6 Sep 2020}, language = {en} } @misc{VinczeFenyvesiKleinetal., author = {Vincze, Miklos and Fenyvesi, Nora and Klein, Marten and Sommeria, Joel and Viboud, Samuel and Ashkenazy, Yossi}, title = {Evidence for wind-induced Ekman layer resonance based on rotating tank experiments}, series = {EPL : a letters journal exploring the frontiers of physics}, volume = {125}, journal = {EPL : a letters journal exploring the frontiers of physics}, number = {4}, issn = {1286-4854}, doi = {10.1209/0295-5075/125/44001}, pages = {1 -- 7}, abstract = {The temporal variability of wind stress acting on the ocean surface may have a significant impact on the energy transfer between the surface ocean and the abyssal ocean. In particular, the surface ocean layer is expected to deepen when the wind's frequency matches the inertial (Coriolis) frequency, through "Ekman layer resonance". Here, we report on laboratory experiments conducted in the large circular rotating tank of the LEGI Coriolis platform (13 m in diameter and 0.5 m in depth) to investigate the effect of oscillating horizontal shear imposed at the water surface. The analysis of the flow structure by means of particle image velocimetry (PIV) reveals a resonant thickening of the top Ekman layer and a marked increase in the kinetic energy of the flow occurs when the forcing frequency coincides with the Coriolis frequency of the rotating tank. The findings are in agreement with the theoretical expectations and constitute evidence for the existence of the Ekman layer resonance (or near inertial resonance) phenomenon in an ocean-like configuration.}, language = {en} } @misc{RoddaHarlanderSavaroetal., author = {Rodda, Costanza and Harlander, Uwe and Savaro, C. and Campagne, A. and Calpe Linares, M. and Augier, P. and Sommeria, Joel and Valran, T. and Viboud, Samuel and Mordant, N.}, title = {Can Laboratory experiments help to explain the atmosphere and ocean's energetics?}, series = {Colaborative Research Center TRR 181, Energy transfers in Atmosphere and Oceans, 16th - 18th Mar. 2021, Universit{\"a}t Hamburg, Center for Earth System Research and Sustainability (CEN)}, journal = {Colaborative Research Center TRR 181, Energy transfers in Atmosphere and Oceans, 16th - 18th Mar. 2021, Universit{\"a}t Hamburg, Center for Earth System Research and Sustainability (CEN)}, language = {en} }