Effects of wind-stress variability on nutrient transport into the mixed layer

Type : ACL
Nature : Production scientifique
Au bénéfice du Laboratoire : Oui
Statut de publication : Publié
Année de publication : 1984
Auteurs (2) : KLEIN Patrice COSTE Bernard
Revue scientifique : Deep-Sea Research Part a-Oceanographic Research Papers
Volume : 31
Fascicule : 1
Pages : 21-37
DOI : 10.1016/0198-0149(84)90070-0
URL : http://www.sciencedirect.com/science/article/pii/0198014984900700
Abstract : This is a numerical study of the influence of unsteady dynamical atmospheric forcings on the physical entrainment of nutrient from deeper layers into the mixed layer. The one-dimensional model used is based on the Mellor and Yamada (1974, Journal of the Atmospheric Sciences, 31, 1791–1806) level 2 model which has been shown to be physically relevant.

From the results, the time evolution of the physical entrainment of nutrient is not driven by the wind stress per se, but by the wind-surface current interaction. More importantly, it appears that the interaction between the time variability of the wind stress and the Coriolis period (which acts on the surface inertial currents and hence their phase direction with respect to the wind stress) can induce a pulsing character, at a time scale of some hours, of the nutrient flux through the thermocline. Because of the non-linear processes involved, the interaction has an effect not only on the instantaneous nutrient distribution, but also on the mean level of the nutrient transported.
Mots-clés : -
Commentaire : -
Tags : -
Fichier attaché : -
Citation :
Klein P, Coste B (1984) Effects of wind-stress variability on nutrient transport into the mixed layer. Deep Sea Res 31: 21-37 | doi: 10.1016/0198-0149(84)90070-0