HR: 17:30h
AN: A32D-07    [PDF]
TI: Analysis Of Climate Response To Aerosol Direct And Indirect Effects By Aerosol Transport-Radiation Model
AU: * Takemura, T
EM: toshi@riam.kyushu-u.ac.jp
AF: Research Institute for Applied Mechanics, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580 Japan
AB: The aerosol transport-radiation model, SPRINTARS, simulates global distributions of main tropospheric aerosols, i.e., black carbon, organic carbon, sulfate, soil dust, and sea salt. It is coupled to an atmospheric general circulation model (AGCM), including the radiation process for the aerosol direct and first indirect effects and the large-scale condensation process for the second indirect effect. The cloud droplet number concentration is diagnosed by the aerosol number concentration, size distribution, chemical properties, and updraft velocity based on the K\"{o}hler theory. To couple the aerosol direct effect with AGCM also results in treating the aerosol semi-direct effect. In this study, SPRINTARS coupled to mixed layer ocean simulates the equilibrium climate response to the direct and indirect effects by anthropogenic aerosols. Changes in temperature and hydrological cycle are especially analyzed.
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0320 Cloud physics and chemistry
DE: 0365 Troposphere--composition and chemistry
DE: 0368 Troposphere--constituent transport and chemistry
DE: 1610 Atmosphere (0315, 0325)
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting