HR: 0800h
AN: A21B-0442    [Abstracts]
TI: Correlation analysis between trace gases and aerosol from Satellite Remote Sensing
AU: * Mok, J
EM: mc2@yonsei.ac.kr
AF: Yonsei University, 134 Sinchon-dong, Seodaemoon-gu, Seoul 120-749, Korea, Seoul, 120- 749, Korea, Republic of
AU: Kim, J
EM: jkim2@yonsei.ac.kr
AF: Yonsei University, 134 Sinchon-dong, Seodaemoon-gu, Seoul 120-749, Korea, Seoul, 120- 749, Korea, Republic of
AU: Lee, J
EM: soule82@yonsei.ac.kr
AF: Yonsei University, 134 Sinchon-dong, Seodaemoon-gu, Seoul 120-749, Korea, Seoul, 120- 749, Korea, Republic of
AB: Recent development in satellite remote sensing, with its global coverage now enables us to investigate correlation between aerosol and pollutant gases. MOPITT (Measurement of Pollution in the Troposphere) onboard Terra satellite launched in December of 1999 has observed carbon monoxide density, and MODIS (Moderate Resolution Imaging Spectroradiometer) has observed AOD (Aerosol Optical Depth). In addition, SCIAMACHY (SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY) and OMI have observed sulfur dioxide and nitrogen dioxide density. Increase of pollutant gases in tropospheric atmosphere modifies chemical, physical, and climatological properties. Aerosol classification algorithm by using MODIS AOD and OMI AI data is used to investigate correlation between gases and aerosols. This study investigates correlation between aerosol and pollutant gases which are regarded as a precursor of aerosol, and their dependence on season, and region. To investigate regional dependence, we divided globes into 7 areas – North America, South Africa, Europe, North Africa, South Africa, Asia, and Australia. Correlation between black carbon AOD retrieved by MODIS-OMI aerosol classification algorithm and CO becomes better than that between fine mode AOD and CO in most regions. By comparing these results with MODIS fire counts, enhanced correlations are found for CO with black carbon aerosol in the region of biomass burning and wild fires. But the correlation between SO2 and sulfate AOD is not good because of longer time in converting SO2 into sulfate.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0365 Troposphere: composition and chemistry
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting