@article{fdi:010073991,
  title = {{D}ampening of submesoscale currents by air-sea stress coupling in the {C}alifornian upwelling system},
  author = {{R}enault, {L}ionel and {M}c{W}illiams, {J}. {C}. and {G}ula, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{O}ceanic submesoscale currents ({SMC}s) occur on an scale of 0.1-10 km horizontally and have a large influence on the oceanic variability and on ecosystems. {A}t the mesoscale (10-250 km), oceanic thermal and current feedbacks are known to have a significant influence on the atmosphere and on oceanic dynamics. {H}owever, air-sea interactions at the submesoscale are not well known because the small size of {SMC}s presents observational and simulation barriers. {U}sing high-resolution coupled oceanic and atmospheric models for the {C}entral {C}alifornia region during the upwelling season, we show that the current feedback acting through the surface stress dominates the thermal feedback effect on the ocean and dampens the {SMC} variability by approximate to 17% +/- 4%. {A}s for the mesoscale, the current feedback induces an ocean sink of energy at the {SMC}s and a source of atmospheric energy that is related to induced {E}kman pumping velocities. {H}owever, those additional vertical velocities also cause an increase of the injection of energy by baroclinic conversion into the {SMC}s, partially counteracting the sink of energy by the stress coupling. {T}hese stress coupling effects have important implications in understanding {SMC} variability and its links with the atmosphere and should be tested in other regions.},
  keywords = {{PACIFIQUE} ; {CALIFORNIE}},
  booktitle = {},
  journal = {{S}cientific {R}eports - {N}ature},
  volume = {8},
  numero = {},
  pages = {art. 13388 [8 p.]},
  ISSN = {2045-2322},
  year = {2018},
  DOI = {10.1038/s41598-018-31602-3},
  URL = {https://www.documentation.ird.fr/hor/fdi:010073991},
}