The use of tidally induced vertical-mixing schemes in simulating the Pacific deep-ocean state

Abstract An optimization experiment was conducted to reproduce the climatological distribution of water properties with an ocean general circulation model in which interior vertical mixing below surface mixed layer is represented by tidally induced near- and far-field vertical-mixing schemes. Globally constant parameters schemes along other physical are optimally estimated based on Green’s function method. The optimized performs reasonably well reproducing deep-water Pacific Ocean, suggesting that combination useful providing a reliable simulation deep-ocean state, consistent both observed broad-scale hydrographic characteristics recent knowledge mixing. Adjustment near-field scheme effective improving state. These results suggest adjustment small number globally through data assimilation may enable improvements state estimation throughout entire column, including deep ocean.