Wind Forcing and the Zonal Structure of the Equatorial Undercurrent

摘要: Abstract A recently developed nonlinear inviscid model of the equatorial undercurrent is coupled to wind-driven surface layer. Wind stress drives a poleward Ekman flow, causing divergence layer transport. This balanced by upwelling fluid supplied zonal convergence undercurrent. In this manner, imposed wind controls structure The meridional determined from transport, thermocline outside undercurrent, and conservation potential vorticity Bernoulli function Solutions are presented for two profiles stress. For westward increasing linearly westward, eastward transport increases nearly westward. with midbasin maximum, has maximum just west basin middle, there recirculation along equator. al...