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| Levy, Marina; Klein, Patrice; Treguier, Anne-marie. |
| Using a protocol of numerical experiments where horizontal resolution is progressively increased, we show that small-scale (or sub-mesoscale) physics has a strong impact on both mesoscale physics and phytoplankton production/subduction.Mesoscale and sub-mesoscale physics result from the nonlinear equilibration of an unstable baroclinic jet. The biogeochemical context is oligotrophy. The explicitly resolved sub-mesoscales, at least smaller than one fifth of the internal Rossby radius of deformation, reinforce the mesoscale eddy field and contribute to double the primary production and phytoplankton subduction budgets. This enhancement is due to the reinforced mesoscale physics and is also achieved by the small-scale frontal dynamics. This sub-mesoscale... |
| Tipo: Text |
Palavras-chave: Oligotrophy; Phytoplankton production; Vorticity gradient; Eddy field; Mesoscale physics. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/2001/publication-800.pdf |
