Medium Range (10 Day) Forecasts with the UCLA General Circulation Model.
Final rept. Jan-May 79,
CALIFORNIA UNIV LOS ANGELES DEPT OF ATMOSPHERIC SCIENCES
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This report presents a series of medium-range 10-day forecasts performed with the UCLA general circulation model GCM. For most of the forecasts we have used more than one version fo the GCM with different horizontal resolutions and vertical extents. The impact of these model characteristics on the accuracy of the forecasts, therefore, can be assessed. Section 2 contains an outline of the UCLA GCM. Descriptions of the dataset and the initialization procedure are given in Section 3. An inventory of cases and models used for each case is in Section 4. The major part of this report consists of the forecast results, presented as maps of sea-level pressure SLP and geopotential Z fields at selected pressure levels.