Sentences with phrase «subgrid modeling in»

These have very interesting potential to do subgrid modeling in a more rigorous way and are superior as discretization methods for the Navier - Stokes equations.

Not exact matches

Tompkins, A., 2002: A prognostic parameterization for the subgrid - scale variability of water vapor and clouds in large - scale models and its use to diagnose cloud cover.

Iorio, J.P., et al., 2004: Effects of model resolution and subgrid scale physics on the simulation of precipitation in the continental United States.

I will try to give some insight into the reasons behind this success, focusing in particular on the importance of subgrid models and the associated limitations.

Pressel, K. G., S. Mishra, T. Schneider, C. M. Kaul, Z. Tan, 2017: Numerics and subgrid - scale modeling in large eddy simulations of stratocumulus clouds.

If you use the computer models to tune parameters for the subgrid models, it becomes critical to control numerical error or else the tuned parameters will only work in the code you used with its time step and grids.

We apply a globally uniform threshold to the AGCM, and model subgrid fluctuations in wind speed using information from the AGCM's parameterizations of the planetary boundary layer, along with dry and moist convection.

Given that they make the bulk of vertical heat transport in the atmosphere, not sure the models are worth more than the expertise of the different groups into building complex subgrid paramterisations, and this is very far from «models implemetning first principles»... I think that at this stage, climatology have more to win from progress in filling experimental database than from progress from modelling.

Principal changes in the physics in the current version of the model are use of a step - mountain C - grid atmospheric vertical coordinate [109], addition of a drag in the grid - scale momentum equation in both atmosphere and ocean based on subgrid topography variations, and inclusion of realistic ocean tides based on exact positioning of the Moon and Sun.

We then spent months tuning the computational grid and the subgrid model parameters (and adjusted the data in ways not fully reported) and then we agreed with the data almost perfectly.

Lets focus down in scale, say to a large eddy simulation model, with resolution of say 2 m. Even such models have parameterizations of the subgrid motions.

This new model is very different from earlier GFDL models in its parameterizations of subgrid - scale physical processes, numerical algorithms, and resolution.