Articles | Volume 17, issue 16
Atmos. Chem. Phys., 17, 9931–9943, 2017

Special issue: Global and regional assessment of intercontinental transport...

Atmos. Chem. Phys., 17, 9931–9943, 2017

Research article 24 Aug 2017

Research article | 24 Aug 2017

Modeling intercontinental transport of ozone in North America with CAMx for the Air Quality Model Evaluation International Initiative (AQMEII) Phase 3

Uarporn Nopmongcol et al.

Data sets

CAMx data CAMx



AQMEII European Commission

Short summary
The CAMx regional model was used to examine contribution of intercontinental transport over North America as part of AQMEII Phase III. Largest boundary condition (BC) contributions to ozone (O3) are from the mid-troposphere. Lower emissions in Asia by 20 % causes a near-linear relationship between the BC O3 changes and surface O3 changes in the western US, but the changes are less than 1 ppb. Using inert tracers leads to high bias over 10 ppb compared to using chemically reactive tracers.
Final-revised paper