HR: 1340h
AN: A53A-0174    [Abstracts]
TI: Results From Simulations of an Ensemble of Global Aerosol Models Using the Same Emission Data Within AeroCom
AU: * Textor, C
EM: christiane.textor@gmx.de
AF: Laboratoire des Sciences du Climat et de l'Environnement, Orme des Merisiers, Gif-sur-Yvette, F-91191 France
AU: Schulz, M
EM: michael.schulz@cea.fr
AF: Laboratoire des Sciences du Climat et de l'Environnement, Orme des Merisiers, Gif-sur-Yvette, F-91191 France
AU: Guibert, S
EM: sarah.guibert@cea.fr
AF: Laboratoire des Sciences du Climat et de l'Environnement, Orme des Merisiers, Gif-sur-Yvette, F-91191 France
AU: Kinne, S
EM: kinne@dkrz.de
AF: Max-Planck-Institute for Meteorology, Bundesstrasse 55, Hamburg, 20146 Germany
AB: Atmospheric aerosols play a key role in many important environmental issues including stratospheric ozone depletion, smog, acid rain, and climate change. The AeroCom exercise aims to identify weak components in aerosol modeling and to decrease the uncertainty of aerosol radiative forcing. AeroCom is an open international initiative of scientists interested in the advancement of the understanding of the global aerosol and its impact on climate. A variety of observations and simulation results from 16 global aerosol models have been assembled in the frame of AeroCom. In this study, results from two series of experiments are presented. In a first experiment, each model was run with different emission data. In a second experiment, all models used the same emission data sets. These data include temporal and spatial (including injection height) information, and particle sizes. We examine the parameters and processes that determine the aerosol fields and life cycles, and discuss new radiative forcing estimates from the AeroCom exercise. The diversities among the models for sea salt, dust, black carbon, particulate organic matter, and sulfate are quantified. We can show that harmonizing the emissions has little effect on the diversity among models.
UR: http://nansen.ipsl.jussieu.fr/AEROCOM/aerocomhome.html
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0550 Model verification and validation
DE: 1610 Atmosphere (0315, 0325)
DE: 1626 Global climate models (3337, 4928)
DE: 3305 Climate change and variability (1616, 1635, 3309, 4215, 4513)
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005