HR: 1340h
AN: A33E-1639    [Abstracts]
TI: Aerosol single scattering albedo and its contribution to radiative forcing dung EAST- AIRE
AU: * Lee, K
EM: kwonlee@umd.edu
AF: Earth System Science Interdisciplinary Center (ESSIC), University of Maryland (UMD), 2114C Computer & Space Sci. Bldg., College Park, MD 20742, United States
AU: Li, Z
EM: zli@atmos.umd.edu
AF: Earth System Science Interdisciplinary Center (ESSIC), University of Maryland (UMD), 2114C Computer & Space Sci. Bldg., College Park, MD 20742, United States
AB: Quantification of aerosol single scattering albedo (SSA) can improve determining aerosol radiative property. Combination technique using MODIS and ground-based Hazemeter measurement data by the East Asian Study of Tropospheric Aerosols: an International Regional Experiment (EAST-AIRE) over China is proposed to retrieve SSA. The accuracy of the retrieval of SSA increases with the aerosol loading and the uncertainties in the SSA retrieval are 0.02~0.03 (AOT=1.0) and up to 0.03~0.05 (AOT=0.5) at 0.47¥ìm, respectively. The comparison of one- year data of retrieved SSA values with those from AERONET inversion product are ~0.03 (RMSD) and ~0.02 (mean bias), respectively. Estimated SSA values were range from 0.89 to 0.93 over the study area. Since SSA is an important factor of aerosol radiative forcing, these will help to understood the study of aerosol climate effects.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0360 Radiation: transmission and scattering
DE: 1610 Atmosphere (0315, 0325)
DE: 1640 Remote sensing (1855)
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting