HR: 09:48h
AN: A21E-09    [Abstracts]
TI: AEROSOL RADIATIVE FORCING A MEASUREMENT BASED APPROACH
AU: * Kinne, S
EM: kinne@dkrz.de
AF: Max-Planck-Institute, Meteorology, Bundesstrasse 53, Hamburg, 20146 Germany
AU: Quaas, J
EM: quass@dkrz.de
AF: Max-Planck-Institute, Meteorology, Bundesstrasse 53, Hamburg, 20146 Germany
AB: Atmospheric aerosol introduces one of the largest uncertainties when quantifying the anthropogenic impact on the Earth-Atmosphere-System. Aerosol (climate) forcing estimates are usually based on simulations with global models. With increasing detail on atmospheric properties (via in-situ samples or remote sensing from ground or space) now, sufficient measurements are available to explore a measurement based approach (when quantifying the aerosol impact on climate). Based on a data synergy of ground statistics (AERONET: aerosol composition) and remote sensing from space (MODIS/MISR: aerosol concentration and distribution, MODIS: solar surface albedo, ISCCP: cloud cover/ vertical distribution), for the year 2000/2001 global monthly simulated fields for clear-sky and all-sky forcing are presented, where clear-sky estimates are compared to CERES data. In addition forcing detail forcing on location (atmosphere versus surface) and anthropogenic contribution (by considering only sub-micron aerosol sizes) is provided.
DE: 3359 Radiative processes
DE: 1610 Atmosphere (0315, 0325)
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0360 Transmission and scattering of radiation
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting