Modeling stratospheric intrusion and trans-Pacific transport on tropospheric ozone using hemispheric CMAQ during April 2010 – Part 1: Model evaluation and air mass characterization for stratosphere–troposphere transport
Syuichi Itahashi,Rohit Mathur,Christian Hogrefe,and Yang Zhang
Environmental Protection Agency (EPA), Computational Exposure
Division, National Exposure Research Laboratory, Office of Research and
Development, Research Triangle Park, NC 27711, USA
Environmental Protection Agency (EPA), Computational Exposure
Division, National Exposure Research Laboratory, Office of Research and
Development, Research Triangle Park, NC 27711, USA
Yang Zhang
Department of Marine, Earth, and Atmospheric Sciences (MEAS), North
Carolina State University (NCSU), Campus Box 8208, Raleigh, NC 27695, USA
now at: Department of Civil and Environmental Engineering, Northeastern University, Boston, MA 02115, USA
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The state-of-the-science Community Multiscale Air Quality model extended for hemispheric applications (H-CMAQ) is used to model the trans-Pacific transport which has been recognized as a potential source of air pollutants over the US. In Part 1, modeled ozone is evaluated with observations at surface, by ozonesonde and airplane, and by satellite across the Northern Hemisphere. In addition, a newly developed air mass characterization method to estimate stratospheric intrusion is presented.
The state-of-the-science Community Multiscale Air Quality model extended for hemispheric...
