
Figure 11.6 Upper Left: Mean annual wind stress T_{x}(y) over the Pacific and the curl of the wind stress. φ_{b} are the northern and southern boundaries of the gyres, where M_{y} = 0 and curl τ = 0. φ_{0} is the center of the gyre. Upper Right: The mass transport stream function for a rectangular basin calculated by Munk (1950) using observed wind stress for the Pacific. Contour interval is 10 Sverdrups. The total transport between the coast and any point x, y is ψ ( x, y ). The transport in the relatively narrow northern section is greatly exaggerated. Lower Right: NorthSouth component of the mass transport. From Munk (1950). 