Reconstructing ozone chemistry during transport of boreal fire plumes over Northern Pacific with satellite, aircraft measurement, and modeling

We examine tropospheric ozone production and loss in Siberian fire plumes transported over Northern Pacific during spring 2008 ARCTAS campaign using collocated O3 and CO profiles as measured by the Tropospheric Emission Spectrometer (TES) and ozone from the Airborne UV Differential Absorption Lidar (DIAL). High CO concentrations, over 200 ppbv, are observed in fire plumes as well as O3 concentrations ranging from less than 30 to more than 100 ppbv. We validate our results using Regional Air Quality Modeling System (RAQMS) and the lagrangian model Geos-Chem. Using Geos-Chem’s adjoint, we determine the impact of these fires on O3 chemistry over North-Western America. Then, with the KPP box model, we reproduce and interpret O3 production and loss in smoke plumes during their transport.