Determination of water mass properties of water pumped down from the Ekman layer to the geostrophic flow below.

摘要: Abstract In a subtropical gyre, the convergent Ekman layer forces water downward into geostrophic flow below. The properties and depth of mixed vary considerably during course year, but this variability does not penetrate region. Evidently there is some process at work that selects only late winter for actual net pumping. It much like performed by Maxwell's Demon. Arguing from particular example in North Atlantic region where Sverdrup dynamics presumed to prevail, an elementary description given as how Demon works sample set profiles season computed. Present day models involve local vertical mixing process. Thermocline theories adiabatic high latitudes. There intermediate range which two processes operate alternatively, according season.