|
|
| Pinot, Jm; Tintore, J; Lopezjurado, Jl; Depuelles, Mlf; Jansa, J. |
| The three-dimensional circulation of an eddy/front system is quantified using hydrographic data collected in the Channel of Ibiza, Western Mediterranean, during November 1990. The ageostrophic motion is derived from the quasi-geostrophic omega equation. Maximum upward velocities (approximate to 4 m/day) are diagnosed on the cold side of the front in the vicinity of a cyclonic eddy and coincident with a sub-surface convergence (below 50 m). This upward motion can be explained in terms of advection over isopycnals that uplift in the along-front direction. We also show the relevance of the three-dimensional circulation for the enhanced fertilization observed in the surface layer. Our results establish the importance of the ageostrophic dynamics induced by... |
| Tipo: Text |
|
| Ano: 1995 |
URL: http://archimer.ifremer.fr/doc/00097/20787/18412.pdf |
| |
