HR: 0800h
AN: A11C-0606    [Abstracts]
TI: Singular value decomposition analyses of tropical tropospheric ozone determined from satellites
AU: * Kim, J H
EM: jaekim@pusan.ac.kr
AF: Pusan National University, Department of Atmospheric Science, Pusan, 609-735, Korea, Republic of
AU: * Kim, J H
EM: jaekim@pusan.ac.kr
AF: University of Alabama in Huntsville, Department of Atmospheric Science, Huntsville, AL 35853, United States
AU: Newchurch, M J
EM: mike@nsstc.uah.edu
AF: University of Alabama in Huntsville, Department of Atmospheric Science, Huntsville, AL 35853, United States
AU: Na, S
EM: sunmi@pusan.ac.kr
AF: Pusan National University, Department of Atmospheric Science, Pusan, 609-735, Korea, Republic of
AU: Kim, S
EM: somyoung@pusan.ac.kr
AF: Pusan National University, Department of Atmospheric Science, Pusan, 609-735, Korea, Republic of
AU: Martin, R V
EM: randall.martin@dal.ca
AF: Dalhousie University, Department of Physics and Atmospheric Science, Halifax, 3J5, Canada
AB: A controversial dispute in space-based tropospheric ozone remote sensing is the puzzling discrepancy in the spatiotemporal distribution between residual-based satellite ozone observations and biomass-burning activity in the tropics during boreal winter. This study focuses on evaluation and analyses of two tropospheric ozone products determined from Earth Probe TOMS, AURA/OMI, and AURA/TES measurements. Rather than using the typical station-to-station inter-comparison with ozonesounding measurements, the evaluation was performed at the global scale using temporal and spatial patterns derived from Singular Value Decomposition (SVD) analyses. The satellite observations of ozone precursors from MOPITT CO and GOME and OMI NO2 serve as markers identifying airmasses influenced by biomass burning. The SVD analyses reveal that the SAM tropospheric ozone product is remarkably consistent (99% significance level) with the two measured ozone precursors, CO and NO2, in distribution as well as in seasonality. The analyses provide compelling evidence that there is no discrepancy between tropospheric ozone and its precursors during boreal winter.
DE: 0365 Troposphere: composition and chemistry
DE: 0368 Troposphere: constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting