Evaluation of the Community Multiscale Air Quality Model for Simulating Winter Ozone Formation in the Uinta Basin.

ABSTRACT: The Weather Research and Forecasting (WRF) and Community Multiscale Air Quality (CMAQ) models were used to simulate a 10 day high-ozone episode observed during the 2013 Uinta Basin Winter Ozone Study (UBWOS). The baseline model had a large negative bias when compared to ozone (O₃) and volatile organic compound (VOC) measurements across the basin. Contrary to other wintertime Uinta Basin studies, predicted nitrogen oxides (NO _x ) were typically low compared to measurements. Increases to oil and gas VOC emissions resulted in O₃ predictions closer to observations, and nighttime O₃ improved when reducing the deposition velocity for all chemical species. Vertical structures of these pollutants were similar to observations on multiple days. Howe

SUBMITTER: Matichuk R 

PROVIDER: S-EPMC6145463 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature