Abstract: The selection mechanisms of Rossby basin modes are investigated in the reduced-gravity quasigeostrophic framework. The linear solution of the wind-driven circulation is decomposed in a steady forced?dissipated solution and ...

Abstract: The spectrum of baroclinic basin modes is investigated in a two-layer wind-driven quasigeostrophic model through weakly nonlinear multiple time-scale expansion in the Burger number. The baroclinic basin modes are mainly ...

Abstract: Optimal surface salinity perturbations influencing the meridional overturning circulation maximum are exhibited and interpreted on a stable steady state of a 2D latitude?depth ocean thermohaline circulation model. Despite ...

Abstract: Optimal perturbations of sea surface salinity are obtained for an idealized North Atlantic basin using a 3D planetary geostrophic model?optimality is defined with respect to the intensity of the meridional overturning ...

Abstract: Recent observations and modeling studies have stressed the influence of surface salinity perturbations on the North Atlantic circulation over the past few decades. As a step toward the estimation of the sensitivity of the ...