|
|
Article: A global version of the PSU-NCAR mesoscale model
- Article from:
- Monthly Weather Review
- Article date:
- December 1, 2002
- Author:
CopyrightCopyright American Meteorological Society Dec 2002. Provided by ProQuest LLC. (Hide copyright information)
|
ABSTRACT
A global version of the fifth-generation Pennsylvania State University-National Center for Atmospheric Research Mesoscale Model (PSU-NCAR MM5) is described. The new model employs two polar stereographic projection domains centered on each pole. These domains interact at their equators, thereby eliminating the need for a lateral boundary condition file.
This paper describes the method, and contrasts this fully compressible nonhydrostatic Eulerian global model with other global models. There are potential advantages over spherical polar grids in the resolution distribution and the treatment of curvature forces near the poles. The model also selectively damps acoustic modes, which ...