A. A. Zelenko and Yu. D. Resnyansky
Hydrometeorological Research Center of the Russian Federation, Moscow, Russia
Received August 24, 2005; in final form, February 28, 2006
Abstract—Features of geographical localization and of temporal variability of convective mixing were exam-
ined based on numerical experiments with the general ocean circulation model developed at the Hydrometeo-
rological Research Center of the Russian Federation. The computations were performed using 6-h data on
atmospheric forcing, which allows one to simulate the variability in a broad range of time scales—from diurnal
to interannual. On the whole, the results of the numerical experiments are consistent with the available scarce
observational data available on the deep convection in the North Atlantic. A pronounced regionalization of the
deep convection in the open ocean is noted, as well as a significant spatial and temporal intermittence of con-
vective events on time scales from a day to a few days. On the interannual time scale, a correlation is recognized
with the variations of the atmospheric forcing and with the hydrophysical conditions in the ocean, in particular,
with the cyclonic circulation within the baroclinic layer.
DOI: 10.1134/S0001437007020063
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