In its basic configuration, the model consists of two domains of 61 X 61 and 52 X 58 grid points, with 30 and 10km spacing, respectively. In vertical the model has 23 terrain-following levels. The initial fields and boundary tendencies are interpolated from the NWS Early Eta model output with a bi-linear interpolation scheme. The water surface temperatures used in the model are obtained from a climatological data set from the National Center for Atmospheric Research. It takes about 8 hours for the model to complete the 36-hour prediction and produce graphic output.
Dotted lines are negative.
One is expansion of the coarse domain to reduce the boundary effects on the fine domain, and to include all of the Great Lakes for lake-effect snowfall study in the future. The other is switching the initial time from 12z to 00z to avoid heavy usage on the SGI workstation which is located in the Department of Geography, the Ohio State University.