The ocean circulation plays a major role in the global climate by controlling the heat flux, sea level fluctuations, nutrient transport and CO2 control. Circulation involves motion having a large range of length scales, including small-scale convection at high latitudes, submesoscale eddies and fronts, mesoscale westerly-propagating Rossby waves and large-scale gyre recirculation across the width of the ocean. The relative role of wind stress and buoyancy forcing on these processes are not well understood. In this project, we like to develop a thermal-quasi geostrophic model for closed basin circulation. The outcomes of the project will also predict new insights into the change of transports and heat uptake rates in response to the different forcing.