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Geophysical Fluid Dynamics Laboratory Review

This comprehensive review presented by Paul Ginoux delves into aerosol modeling and evaluation through the advancements made in CM2 and AM3 simulations from June 30 to July 2, 2009. Key topics include monthly mass distributions of aerosols (SO4, OC, BC, dust), the impact of anthropogenic emissions, and the importance of optical properties. It evaluates both ground-based and satellite data, assesses the performance of new transport schemes, and emphasizes the significance of accurate aerosol profiles for atmospheric heating and long-range tracer transport.

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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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