High-resolution global ocean general circulation models (OGCMs) play a key role in accurate forecasting. However, the of operational forecasting systems are still not high resolution due to subsequent demand for large computation, as well low parallel efficiency barrier. Good scalability is an important index and challenge OGCMs. We found that communication cost barotropic solver, namely, preco...

in spite of considerable increase in the resolution of general circulation and regional models, none of these models are capable to predict and downscale the meteorological outputs in the scale of meteorological station.in this regard, different dynamical and statistical models have been developed for downscaling outputs of gcms. in this paper, grided meteorological outputs of general circulati...

Polynomial Chaos (PC) expansions are used to propagate parametric uncertainties in an ocean general circulation model. The computations focus on shorttime, high-resolution simulations of the Gulf of Mexico (GOM), using the HYbrid Coordinate Ocean Model (HYCOM), with wind stresses corresponding to hurricane Ivan. A sparse quadrature approach is used to determine the PC coefficients which provide...

The multiple equilibria of the thermohaline circulation (THC: used here in the sense of the meridional overturning circulation) as function of the surface freshwater flux has been studied intensively following a Stommel paper from 1961. It is shown here that multistability and hysteresis of the THC also exist when the wind stress amplitude is varied as a control parameter. Both the Massachusett...

A parameterization of mesoscale eddies in coarse-resolution ocean general circulation models (GCM) is formulated and implemented using a residual-mean formalism. In that framework, mean buoyancy is advected by the residual velocity (the sum of the Eulerian and eddy-induced velocities) and modified by a residual flux which accounts for the diabatic effects of mesoscale eddies. The residual veloc...