Evaluation of Performance Measures for an Urban Photochemical Model

摘要

A workshop conducted by the American Meteorological Society for EPA in September 1980 recommended a large set of statistical measures for use in the evaluation of air quality models. The present study was designed to test the recommended measures in an actual performance evaluation of an airshed model on data developed for Denver, Colorado. Three versions of the SAI Urban Airshed Model were examined. The study involved both an evaluation of the models and an evaluation of the statistical performance measures. The evaluation of the models had two parts--a base year case and an emissions trend case, the latter representing the use of the models for regulatory purposes. Resulting recommendations are intended to aid the future use of such models, the planning of future performance evaluations of airshed models, and the use of performance evaluation statistics.