HR: 16:45h
AN: A32D-04    [PDF]
TI: Blending AERONET, MODIS and GCM Aerosol Size Information
AU: * Lesins, G
EM: lesins@fizz.phys.dal.ca
AF: Dalhousie University, Department of Physics and Atmospheric Science Dunn Building, Halifax, NS B3H 3J5 Canada
AU: Lohmann, U
EM: Ulrike.Lohmann@dal.ca
AF: Dalhousie University, Department of Physics and Atmospheric Science Dunn Building, Halifax, NS B3H 3J5 Canada
AB: Retreivals from AERONET surface observations of solar radiance provide column-averaged detailed aerosol size distributions and optical properties for a select number of locations around the globe. Measurements from MODIS provide a high spatial resolution global coverage of more simplified column-averaged aerosol size information, namely the small mode optical depth fraction and the Angstrom exponent. GCMs perform chemical and dynamical transport of various aerosol types to predict three dimensional aerosol mass mixing ratios but with highly simplified size assumptions. By exploiting the correlations between the aerosol quantities derived from AERONET, MODIS and GCM, we suggest that an improved global distribution of aerosol sizes can be deduced.
DE: 0305 Aerosols and particles (0345, 4801)
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting