Three-Dimensional Structure of Optimal Nonlinear Excitation for Decadal Variability of the Thermohaline Circulation
ZU Zi-Qing1,2, MU Mu3,1, Henk A. DIJKSTRA4
Figure 1 Steady state: a meridional overturning stream function ¦× defined by ; units: Sv, b zonal overturning stream function ¦Ö defined by ; units: Sv, c zonal mean density units: kg m -3 , d sea surface temperature units: ¡ãC, e sea surface salinity units: psu, and f velocities averaged over upper layers from sea surface to -1500 m; units: m s -1 , with horizontal velocities denoted by arrows and vertical velocities by contours. In these figures, solid and dashed lines denote positive and negative values, respectively.