Author(s)

C. Lozef and R.D. Bornstein

Abstract

This paper compares nesting techniques within the Fifth-Generation Mesoscale Model (MM5), a non hydrostatic, fully compressible meteorological model developed in 1982 by NCAR and Pennsylvania State University. Three nesting techniques have been compared in this study: 2-way, standard 1-way, and continuous 1-way. To perform this comparison, MM5 was run in a triple nested configuration (27-9-3 km) to simulate a winter wave cyclone that affected the West Coast of the U.S. during 11-13 March 1996. MM5 captured the general evolution of the storm, but inaccurate initial conditions with all three methods caused a simulated upper level flow more zonal and precipitation

Keywords