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

Richard Dupont(1), John Worden(1), Brad Pierce(2), Marta Fenn(2), Johnathan Hair(2) and Murali Natarajan(2)

(1) Jet Propulsion Laboratory, California Institute of Technology, California, United States
(2) NASA Langley Research Center, -, Washington, United States


We examine tropospheric ozone production and loss in Kazakhstan and Thailand 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. These variations in ozone are linked to aerosols amounts as well as aircraft measurements of ozone precursors.