KOPRI Repository

Source characterization of carbon monoxide and ozone over the Northwestern Pacific in summer 2012

Cited 0 time in scopus
Metadata Downloads
Source characterization of carbon monoxide and ozone over the Northwestern Pacific in summer 2012
Park, Keyhong
Rhee, Tae Siek
Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
Carbon monoxide; Ozone; Marine boundary layer; Global chemical transport model; Source composition; Araon
Issue Date
Park, Keyhong, Rhee, Tae Siek. 2015. "Source characterization of carbon monoxide and ozone over the Northwestern Pacific in summer 2012". Atmospheric Environment, 111: 151-160.
Carbon monoxide (CO) and ozone (O3) were continuously measured in the marine boundary layer of the East Sea, the Northwestern Pacific, and the Bering Sea onboard R/V Araon in the second halves of July and September of 2012, as a part of the SHIpborne Pole-to-Pole Observations (SHIPPO) program. Depending on the characteristics of each section of the cruise track, up to 66 ppbv and 17 ppbv of CO and O3 variability were observed, respectively. The O3/CO ratio suggests that O3 was dominantly produced by photochemical reactions in the troposphere, although in the northern sections of the cruise track, the ratio likely suggests vertical transport from the free troposphere or the lowermost stratosphere. To analyze the source characteristics and the transport of both trace gases, a tagging technique in a 3-D global chemical transport model (Model for OZone And Related chemical Tracers-4; MOZART-4) was applied. The model reproduced the observations fairly well, and the technique enabled us to characterize the source regions and composition of the observed CO. Anthropogenic emissions from Northeastern Asian countries appeared to be substantial sources of the CO in the southern sections, and biomass burning in Siberia was an important source of the CO observed in the northern sections of the cruise track. Long-range transport of anthropogenic CO emissions was distinct over the Bering Sea, where the comparable contributions from North America, Northeast Asia, and Europe were identified. Low CO events driven by southern hemispheric invasion were encountered at the southern coast of the Korean peninsula and in the North Pacific at ∼50N latitude. The model pointed to a noticeable contribution from the open ocean in the Southern Hemisphere for these events
Files in This Item
General Conditions
      ROMEO Green
    Can archive pre-print and post-print or publisher's version/PDF
      ROMEO Blue
    Can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
      ROMEO Yellow
    Can archive pre-print (ie pre-refereeing)
      ROMEO White
    Archiving not formally supported


    Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.