Dependence of Simulated Tropospheric Ozone Trends on Uncertainties in U.S. Mobile Fleet Emissions.

Sarah A Monks1,2, Thomas B Ryerson3, Louisa K Emmons4, Simone Tilmes5, Birgit Hassler1,2 and J F Lamarque6, (1)NOAA ESRL Chemical Sciences Division, Boulder, CO, United States, (2)Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (3)NOAA/ESRL Chemical Sciences Division, Boulder, CO, United States, (4)National Center for Atmospheric Research (NCAR), Atmospheric Chemistry Observations & Modeling Laboratory (ACOM), Boulder,CO, United States, (5)Univ. of Leeds, Leeds, United Kingdom, (6)National Center for Atmospheric Research, Boulder, CO, United States