Use high resolution numerical model to study the sub-grid processes and to test various parameterizations

How to learn eddy diffusivity or effects of sub-grid processes in a numerical model? Could we do that by changing the resolution of the model and then compare the different results?

• Using high-resolution model to calculate the different quantities, such as velocity, temperature and salinity.

• Using low-resolution model with parameterization to calculate same quantities. Then we can compare the results and figure out wether the parameterization model works well.

• We could also figure out the relationships of diffusivity or sub-grid process and the grid size.