Three-Dimensional Variational (3DVAR) Data Assimilation System for use with MM5

摘要

This document describes the three-dimensional variational (3DVAR) data assimilation system designed and built in the MMM Division of NCAR for use with the MM5 modeling system. This, and additional documentation can be found online at the MM5 3DVAR web site: http:www.mmm.ucar.edu/3dvar. The 3DVAR system described here was also adopted in June 2001 as the starting point for 3DVAR development for the Weather Research Forecast (WRF) model. This version of the technical documentation focuses on the use of 3DVAR within the MM5 modeling environment.