HR: 1340h
AN: A33C-1400    [Abstracts]
TI: Validation of OMI Tropospheric Nitrogen Dioxide Column Data Using MAX-DOAS Measurements Deep Inside the North China Plain in June 2006
AU: * Irie, H
EM: irie@jamstec.go.jp
AF: Frontier Research Center for Global Change, Japan Agency for Marine-Earth Science and Technology, 3173-25 Showa-machi, Kanazawa-ku, Yokohama, 236-0001, Japan
AU: Kanaya, Y
AF: Frontier Research Center for Global Change, Japan Agency for Marine-Earth Science and Technology, 3173-25 Showa-machi, Kanazawa-ku, Yokohama, 236-0001, Japan
AU: Akimoto, H
AF: Frontier Research Center for Global Change, Japan Agency for Marine-Earth Science and Technology, 3173-25 Showa-machi, Kanazawa-ku, Yokohama, 236-0001, Japan
AU: Tanimoto, H
AF: National Institute for Environmental Studies, 16-2, Onogawa, Tsukuba, 305-8506, Japan
AU: Wang, Z
AF: LAPC/NZC, Institute of Atmospheric Physics, Chinese Academy of Sciences, Chaoyang districts, Beijing, 100029, China
AU: Gleason, J F
AF: Atmospheric Chemistry and Dynamics branch, NASA Goddard Space Flight Center, Code 916, Greenbelt, MD 20771-0000, United States
AU: Bucsela, E J
AF: Atmospheric Chemistry and Dynamics branch, NASA Goddard Space Flight Center, Code 916, Greenbelt, MD 20771-0000, United States
AB: A challenge for the quantitative analysis of tropospheric nitrogen dioxide (NO₂) column data from satellite observations is likely posed mainly by the lack of satellite-independent observations for validation. We performed such satellite-independent observations of the tropospheric NO₂ column using the ground-based Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) technique in the North China Plain (NCP) from 29 May to 29 June, 2006. Comparisons between tropospheric NO₂ columns measured by MAX-DOAS and the Ozone Monitoring Instrument (OMI) onboard the Aura satellite indicate that OMI data over NCP likely have a positive bias of 2×10¹⁵ molecules cm^-2 (~30%), but it is within the estimated random error of 3×10¹⁵ molecules cm^-2 (~40%). Considering the uncertainty estimated here will pave the way for quantitative studies using the OMI NO₂ data over NCP.
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0365 Troposphere: composition and chemistry
DE: 0368 Troposphere: constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting