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RISTemporal and Spatial Scales of the Wind Field over the North Pacific and North Atlantic
Publisher: American Meteorological Society
Abstract: Quasi-geostrophic wind fields over the northern parts of the Pacific and Atlantic Oceans are calculated from synoptic surface pressure data for the four-year period 1973?76. Maps of mean and rms wind stress and of mean ...
Multiple Equilibria of the Global Thermohaline Circulation
Publisher: American Meteorological Society
Abstract: A general circulation model with a highly idealized geometry is used to investigate which fundamentally different equilibria of the global thermohaline circulation may exist. The model comprises two identical basins ...
The Role of Temperature Feedback in Stabilizing the Thermohaline Circulation
Publisher: American Meteorological Society
Abstract: Ocean climate models traditionally compute the surface heat flux with a restoring boundary condition of the form Q = ?(T* ? To). This implies an atmosphere of fixed temperature and breaks down when large-scale changes in ...
Mechanism of Interannual to Decadal Variability of the North Atlantic Circulation
Publisher: American Meteorological Society
Abstract: A model of the Atlantic Ocean was forced with decadal-scale time series of surface fluxes taken from the National Centers for Environmental Prediction?National Center for Atmospheric Research reanalysis. The bulk of the ...
Parameterization of Mesoscale Eddies as Inferred from a High-Resolution Circulation Model
Publisher: American Meteorological Society
Abstract: The compatibility of the Gent and McWilliams thickness mixing parameterization with perturbation thickness fluxes evaluated from eddy-resolving North Atlantic model results is investigated. After extensive spatial and ...
Fine Adjustment of Large Scale Air-Sea Energy Flux Parameterizations by Direct Estimates of Ocean Heat Transport
Publisher: American Meteorological Society
Abstract: An inverse technique is used to adjust uncertain coefficients and parameters in the bulk formulae of climatological air-sea energy fluxes in order to obtain an agreement of indirect estimates of meridional heat transport ...
A Diagnosis of Thickness Fluxes in an Eddy-Resolving Model
Publisher: American Meteorological Society
Abstract: Output from an eddy-resolving model of the North Atlantic Ocean is used to estimate values for the thickness diffusivity ? appropriate to the Gent and McWilliams parameterization. The effect of different choices of rotational ...
Effects of Increased Horizontal Resolution in a Simulation of the North Atlantic Ocean
Publisher: American Meteorological Society
Abstract: Global mean and eddy fields from a four-year experiment with a 1/6° ? 1/5° horizontal resolution implementation of the CME North Atlantic model are presented. The time-averaged wind-driven and thermohaline circulation in ...
Parameterizing Eddy-Induced Tracer Transports in Ocean Circulation Models
Publisher: American Meteorological Society
Abstract: It is shown that the effects of mesoscale eddies on tracer transports can be parameterized in a large-scale model by additional advection and diffusion of tracers. Thus, tracers are advected by the effective transport ...