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Su, Zhan; Torres, Hector; Klein, Patrice; Thompson, Andrew F; Siegelman, Lia; Wang, Jinbo; Menemenlis, Dimitris; Hill, Christopher. |
he rate of ocean heat uptake depends on the mechanisms that transport heat between the surface and the ocean interior. A recent study found that the vertical heat transport driven by motions with scales smaller than 50 km (submesoscales) and frequencies smaller than one day‐1 is upward. This transport competes with the other major components of the global heat transport, namely the downward heat transport explained by the large‐scale wind‐driven vertical circulation and vertical diffusion at small scales, and the upward heat transport associated with mesoscale eddies (50‐300 km size). The contribution from motions with small spatial scales (< 50 km) and frequencies larger than one day‐1, including internal gravity waves, has never been explicitly... |
Tipo: Text |
Palavras-chave: Ocean heat transport< /AUTHOR_KEYWORD> High frequency< /AUTHOR_KEYWORD> Ocean front< /AUTHOR_KEYWORD> Eddies< /AUTHOR_KEYWORD> Eddy transport< /AUTHOR_KEYWORD>. |
Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00643/75508/76354.pdf |
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Erickson, Zachary K; Thompson, Andrew F; Callies, Jörn; Yu, Xiaolong; Naveira Garabato, Alberto; Klein, Patrice. |
Submesoscale dynamics are typically intensified at boundaries and assumed to weaken below the mixed layer in the open ocean. Here, we assess both the seasonality and the vertical distribution of submesoscale motions in an open ocean region of the northeast Atlantic. Second-order structure functions, or variance in properties separated by distance, are calculated from submesoscale-resolving ocean glider and mooring observations, as well as a 1/48° numerical ocean model. This data set combines a temporal coverage that extends through a full seasonal cycle, a horizontal resolution that captures spatial scales as small as 1 km, and vertical sampling that provides near-continuous coverage over the upper 1000 m. While kinetic and potential energies undergo a... |
Tipo: Text |
Palavras-chave: Instability; Mixing; Small scale processes; Buoy observations; Profilers; Oceanic. |
Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00592/70388/68470.pdf |
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