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<p>The air-sea interactions with the submesoscale warm filament of the oceanic mixed layer are simulated by a coupled atmosphere-ocean model of the parallelized lager eddy simulation model. The results show that the warm core of the oceanic warm filament heats the bottom air of the atmospheric boundary layer, the rise of the bottom warm air results in the formation of the atmospheric warm filament. The variation in the width of the oceanic warm filament is generated by the change in the direction of the secondary circulations. The variation in the width of the atmospheric warm filament is created by that of the oceanic warm filament, because the direction of the secondary circulations of the atmospheric warm filament is invariable with time. The Coriolis effect results in the change in the direction of the secondary circulations for the oceanic warm filament. The secondary circulations of the atmospheric warm filament are produced by the rise of the bottom warm air caused by the oceanic warm filament, which leads to the unchanged direction of the secondary circulations. The thermal convection turbulence caused by the temperature difference of the ocean and atmosphere gradually weakens the structure of the oceanic and atmospheric warm filaments.</p>

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Air-sea interactions with an oceanic submesoscale warm filament simulated by a coupled large eddy simulation model

  • 期刊论文

  • 发表日期：

    2025年10月1日

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  • Guojing Li,
  • Yunkai He,
  • Meiyan Wei,
  • Yunqiang Deng,
  • Zeyou Wei

摘要

The air-sea interactions with the submesoscale warm filament of the oceanic mixed layer are simulated by a coupled atmosphere-ocean model of the parallelized lager eddy simulation model. The results show that the warm core of the oceanic warm filament heats the bottom air of the atmospheric boundary layer, the rise of the bottom warm air results in the formation of the atmospheric warm filament. The variation in the width of the oceanic warm filament is generated by the change in the direction of the secondary circulations. The variation in the width of the atmospheric warm filament is created by that of the oceanic warm filament, because the direction of the secondary circulations of the atmospheric warm filament is invariable with time. The Coriolis effect results in the change in the direction of the secondary circulations for the oceanic warm filament. The secondary circulations of the atmospheric warm filament are produced by the rise of the bottom warm air caused by the oceanic warm filament, which leads to the unchanged direction of the secondary circulations. The thermal convection turbulence caused by the temperature difference of the ocean and atmosphere gradually weakens the structure of the oceanic and atmospheric warm filaments.