HR: 0800h
AN: A11A-0043    [Abstracts]
TI: Analysis of aerosol properties from the AERONET over East Asia for a remote sensing
AU: * Yoon, J
EM: cromx2@yonsei.ac.kr
AF: Yonsei Uni., Room 701, Department of Atmospheric Science, College of Science, Yonsei Uni., 134 Shinchon-dong, Seodaemun-gu, Seoul, 120-749, Korea, Republic of
AU: Kim, J
EM: jkim2@yonsei.ac.kr
AF: Yonsei Uni., Room 701, Department of Atmospheric Science, College of Science, Yonsei Uni., 134 Shinchon-dong, Seodaemun-gu, Seoul, 120-749, Korea, Republic of
AB: Most satellite-based algorithms utilize Look-Up Table (LUT) approach, precalculated with radiative transfer models which are based on many assumptions. These assumptions can sometimes lead to significant error in satellite-based algorithms in aerosol products. All available daily level 2.0 AERONET data over East Asia are compiled to investigate monthly and seasonal variations of aerosol properties (aerosol optical depth, aerosol size distribution of the particle volume, and complex refractive index). Correlation between the aerosol properties and precipitable water from the AERONET are also analyzed over the East Asia. For heavily-loaded case of aerosols, in particular, monthly means of aerosol optical depth show different pattern from that of normal cases. Most aerosol properties show seasonal pattern which strongly appears under heavy aerosol-loaded condition and is affected by the relative humidity. The precipitable water affects complex refractive index and aerosol size distribution. From this analysis, the extinction coefficients are calculated using the MIE code. Finally, it is shown that the total precipitable water affects the values of extinction coefficient. Results in this study can be applied directly to improve the retrieval accuracy of the aerosol-products for the satellite-based algorithm by providing realistic aerosol model in LUT calculation.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0305 Aerosols and particles (0345, 4801, 4906)
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting