Articles | Volume 12, issue 8
Geosci. Model Dev., 12, 3641–3648, 2019
https://doi.org/10.5194/gmd-12-3641-2019
Geosci. Model Dev., 12, 3641–3648, 2019
https://doi.org/10.5194/gmd-12-3641-2019

Methods for assessment of models 22 Aug 2019

Methods for assessment of models | 22 Aug 2019

Systematic bias in evaluating chemical transport models with maximum daily 8 h average (MDA8) surface ozone for air quality applications: a case study with GEOS-Chem v9.02

Katherine R. Travis and Daniel J. Jacob

Model code and software

Supporting Model Code and Output for https://doi.org/10.5194/gmd-2019-78, 2019 K. R. Travis and D. J. Jacob https://doi.org/10.5281/zenodo.3343043

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Short summary
Models of ozone air pollution are often evaluated with the policy metric set by the EPA of the maximum daily 8 h average ozone concentration. These models may be used in policy settings to evaluate air quality regulations. However, most models have difficulty simulating how ozone varies over the course of the day, and thus the use of this metric in model evaluation is problematic. Improved representation of mixed layer dynamics and ozone loss to the surface is needed to resolve this issue.