Analysis and Evaluation of the UAM-V, UAM-IV, and ROM/UAM-IV Photochemical GridModels for the Region Around Lake Michigan

摘要

This report describes the evaluation of the models on the LMOS domain. Thepredictions of the UAM-IV and UAM-V regional photochemical grid models have been evaluated using observations from two three-day ozone episodes (26-28 June 1991 and 17-19 July 1991). UAM-IV and UAM-V have been run on LMOS Domain B in a consistent manner using the same emissions inputs, diagnostic National Weather Service meteorological inputs, and observed Domain B boundary conditions. In addition, UAM-IV has been using Domain B boundary conditions derived from the output of EPA ROM 2.2 runs, and UAM-V has been run on optimum nested node with meterological inputs from the CALRAMS prognostic model. The results suggest how well the individual models simulate key variables such as ozone, NOx, and VOC at the surface and aloft, and allow a comparison of the relative performance of the models.