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Geophysical Fluid Dynamics Laboratory Review

Geophysical Fluid Dynamics Laboratory Review. June 30 - July 2, 2009. Aerosol Modeling and Evaluation. Presented by Paul Ginoux. Monthly mass distribution for SO 4 = , OC, BC, dust from MOZART ( Horowitz et al., 2003 ), fixed sea-salt Anthropogenic emission ( Horowitz 2006 )

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Geophysical Fluid Dynamics Laboratory Review

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  1. Geophysical Fluid Dynamics LaboratoryReview June 30 - July 2, 2009

  2. Aerosol Modeling and Evaluation Presented by Paul Ginoux

  3. Monthly mass distribution for SO4=, OC, BC, dust from MOZART (Horowitz et al., 2003), fixed sea-salt Anthropogenic emission (Horowitz 2006) Hygroscopicity for SO4= only External mixing Off-line Aerosols in CM2 CM2 forcing for AR4 with off-line aerosols AOD (550nm) CM2 > 2 x Obs. in polluted area CM2 < 0.5 x Obs. in biomass burning area Ginoux et al., 2006

  4. Nudging capability with NCEP re-analysis for u, v, T, q, ps Emission, transport, and removal of SO4=, OC, BC, sea-salt and dust on-line Simplified S chemistry (O3, OH, HO2, NO3, jH2O2 prescribed) Anthropogenic emission from AeroCom Hygroscopicity of SO4=, OC, sea-salt Updated optical properties On-line aerosols in AM2n Comparison with ground-based network or satellite data: • Surface concentration: NOAA PMEL, U. Miami data, IMPROVE, EMEP • Column burden: AERONET, SCIAMACHY for SO2 • Size distribution: AERONET • Extinction coefficient profile: MPLNET, CALIPSO • Optical properties (AOD, Scattering, Absorption) • Ground-based: NOAA ESRL, AERONET • Satellite: MODIS, MISR, OMI, AVHRR, PARASOL (Ganguly et al., 2009a, and 2009b; Li et al., 2008, and 2009; Magi et al., 2009)

  5. In addition to AM2n developments: Full O3 chemistry (MOZART) Internal mixing of SO4= with BC Prognostic equation for cloud droplet number Anthropogenic emission from IPCC AR5 New transport schemes for convection and advection On-line aerosols in AM3 AOD (550nm): AM3 ~ Obs. in polluted and biomass burning area AM3 > 2 Obs. over volcanoes AM3 < 0.5 Obs. In high latitudes

  6. CM2 / AM3 Aerosol Extinction Profile Importance of realistic profiles for atmospheric heating by absorbing aerosol and long range transport of tracers. Extinction coefficient (1/km) Greenbelt (MD) As observed, extinction coeff. decrease by 2-3 orders of magnitude in troposphere for AM3 (compare to 1 order for CM2) Improvement essentially due to new convective and advective schemes

  7. Geophysical Fluid Dynamics LaboratoryReview June 30 - July 2, 2009

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