HR: 09:24h
AN: A21E-07    [Abstracts]
TI: Modeling study of aerosol effects on climate system under comparisons with satellite retrievals
AU: * Takemura, T
EM: toshi@riam.kyushu-u.ac.jp
AF: Research Institute for Applied Mechanics, Kyushu University/NASA Goddard Space Flight Center/Goddard Science and Technology Center, University of Maryland, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580 Japan
AU: Kaufman, Y J
EM: yoram.j.kaufman@nasa.gov
AF: NASA Goddard Space Flight Center, Code 913, Greenbelt, MD 20771 United States
AU: Higurashi, A
EM: hakiko@nies.go.jp
AF: National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 305-8506 Japan
AU: Nakajima, T Y
EM: nakajima@eorc.jaxa.jp
AF: Earth Observation Research and Application Center, Japan Aerospace Exploration Agency, Harumi Island Triton Square, Office Tower X 22F, 1-8-10 Harumi, Chuo-ku, Tokyo, 104-6023 Japan
AB: To estimate aerosol effects on climate change more reliably by modeling studies, it is essential to compare with a variety of measured aerosol and cloud parameters in detail. The global aerosol radiation-transport model, SPRINTARS, simulate three-dimensional distributions and direct/indirect effects of main tropospheric aerosols, i.e., black carbon, organic carbon, sulfate, soil dust, and sea salt, coupled with a general circulation model. In this study, distributions of aerosol and cloud parameters simulated by SPRINTARS are compared with satellite retrievals of MODIS and AVHRR in order to understand their uncertainties and to improve the present model. Under these comparisons the aerosol direct and indirect radiative forcings are estimated and the feedback mechanism of the hydrological cycle is analyzed.
DE: 3354 Precipitation (1854)
DE: 3359 Radiative processes
DE: 3319 General circulation
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0320 Cloud physics and chemistry
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting