Park, Sang-Hun, William Skamarock, Joseph Klemp,
Michael Duda and Laura Fowler, National Center for Atmospheric Research
With one-way or two way
grid nesting, high-resolution mesoscale models are widely used for operational
system. However, because of their lateral boundary condition (LBC) problem,
there is new approach (Model Prediction Across Scale -MPAS) which allow having high-resolution as a tiling of the
sphere. In this study, we will evaluate the ability to solve multiresolution
meshes using MPAS and nested-WRF simulation. An idealized normal mode
baroclinic wave test case is explored from global to high-resolution regional
domain to investigate the effect of LBC for both nesting and conformal grid. We
will show the main differences occurred from lateral boundary area and the
possibility of reflection for these errors.