-> Aerosol Comparisons between Observations and Models



3rd AEROCOM workshop

(held at NASA-GISS in New York, USA, December 1-3, 2004)

This document contains presentations and posters of the AEROCOM workshop in New York in December 2003. Contributions are bundled by topic:

  1. The GENERAL INFO section summarizes AeroCom project goals, provides the workshop program and lists names and e-mails of the workshop participants
  2. The OVERVIEW section contains summary presentations of the model-evaluation team, illustrating model diversity and modeling skill based on comparisons to available data-sets.

  1. The CLOUD DATA section reviews the quality of available cloud products from remote sensing in order to understand the value of correlations between particular aerosol and clouds properties for insights into aerosol cloud interactions
  2. The OBSERVED CLOUD-AEROSOL CORRELATIONS section reports on correlations between neighboring aerosol and cloud properties in search of signs for aerosol cloud interactions
  3. The INDIRECT EFFECT SIMULATIONS section provides samples on efforts in global modeling to parameterize and quantify the aerosol influence on other atmospheric properties, in particular clouds (the mainly modulators to climate).

  1. The AEROSOL OPTICAL DEPTH section addresses the capabilities of available ‘aot’ data-sets and illustrates diversity and skill in global modeling
  2. The AEROSOL SIZE section contains addresses the capabilities of available data-sets on aerosol size and illustrates capabilities to reproduce measurements in global modeling by comparing size-lated properties such as Angstrom parameter or accumulation mode size fraction
  3. The AEROSOL ABSORPTION section addresses the capabilities of available data-set to quantify aerosol absorption and illustrates diversity in global modeling
  4. The AEROSOL ALTITUDE section addresses the capabilities of available data-sets to capture the vertical distribution of aerosols and illustrates diversity and skill over selected ground sites in global modeling

  1. The AEROSOL DIRECT FORCING section addresses efforts to quantify the aerosol direct forcing from measurements and gives an initial glimpse on diversity and skil in global modeling

  1. The POSTERS section provides a more detailed look on model differences in aerosol component modeling. In addition, simulated (component combined) aerosol optical depths are compared to satellite retrievals and to ground statistics from AERONET. An addition poster illustrates that remote sensing from the ground (with the example of AERONET) can provide (beyond optical depth) much more data on aerosol properties (e.g. size-distribution or absorption).
  2. The SOURCES section introduces data and efforts towards a common inventory of aerosol emission data for the years 2000 and 1750 (pre-industrial conditions) – in support of model sensitivities studies with identical assumptions for aerosol (component) emissions

  1. The AeroCom Project and Workshop Goals
  2. The Workshop Program
  3. Participants and e-mail contacts Highslide JS
    Highslide JS

  1. Can AEROCOM help reduce uncertainties in direct radiative forcing of aerosols ? presented by M. Schulz (LSCE )
  2. Parameterizations and Diversity of aerosol processes presented by C. Textor (LSCE)
  3. Atmospheric Aerosol contributed by S. Kinne (MPI-Met )

  1. MISR and cloud properties presented by R. Davies (NASA-JPL)
  2. CERES-MODIS cloud products contributed by P. Minnis (NASA-Langley)
  3. MODIS cloud products presented by S. Platnick (NASA-GSFC)
  4. POLDER cloud products presented by J. Riedi (LOA)
  5. ISCCP cloud data presented by B. Russow (NASA-GISS)

  1. Aerosol effect on cloud and precipitation presented by Y. Kaufman (NASA-GSFC)
  2. aerosol cloud correlations presented by S. Kinne (MPI-Met)
  3. Aerosol-Cloud interactions detected by MODIS presented by S. Mennon (Berkeley Labs)
  4. Aerosol indirect effects – assessments from satellite data contributed by J. Quass (MPI-Met)
  5. Dynamical and thermodynamic controls on Smoke-Cloud interactions presented by H. Yu (NASA-GSFC)

  1. Climate feedbacks of the indirect effect caused by anthropogenic aerosol presented by T. Iversen (Univ. Oslo)
  2. The impact of a new gas/aerosol chemistry module MESSy in ECHAM5 presented by R. Lang (MPI-Chem)
  3. Modeling Aerosol-Cloud interaction with a self-consistent cloud scheme presented by Y. Ming (GFDL)
  4. Aerosol-Cloud interactions in CACTUS presented by A. Nenes (GaTech)
  5. A proposed model intercomparison presented by J. Penner (Univ. Michigan)
  6. Aerosol-Cloud interactions presented by V. Ramaswany (GFDL)
  7. Simulations of climate response to aerosol direct and indirect effects presented by T. Takemura (Kyushu Univ. / NASA-GSFC)

  1. scaling properties of aot from sun-photometric and satellite data presented by M. Alexandrov (NASA-GISS)
  2. decoupling aerosol and ground reflection signals in urban areas presented by B. Gross (CCNY)
  3. aot comparisons: Models, MODIS and AERONET presented by S. Guibert (LSCE)
  4. evaluation of the MODIS aot on a daily and monthly basis presented by Y. Kaufman (NASA-GSFC)
  5. aot – comparisons among available global data-sets presented by S. Kinne (MPI-Met)
  6. Global Aerosol Climatology Project (GACP) presented by M. Mishchenko (NASA-GISS)
  7. AERONET – What we can and cannot do for AeroCom presented by A. Smirnov (NASA-GSFC)
  8. Aerosol optical properties – model diversity in AeroCom Exp A presented by C. Textor (LSCE)

  1. automated algorithm for remote sensing of aerosol and trace-gases with MFRSR presented by M. Alexandrov (NASA-GSFC)
  2. size-distributions from AERONET presented by O. Dubovik (NASA-GSFC)
  3. Aerosol microphysical properties from MISR presented by R. Kahn (NASA-JPL)
  4. li>GCM parameterizations of Hygrospcopic aerosol radiative properties presented by A. Lacis (NASA-GISS)
  5. improving aerosol size representation in the UKMO climate model presented by G. Mann (Univ. Leeds)
  6. size distributions – AeroCom Exp A presented by C. Textor (LSCE)

    li> Toward resolution on the optics of light absorbing carbon contributed by T. Bond (Uni Illinois UC)
  1. Aerosol absorption – comparing GOCART (model) and AERONET (data) presented by T. Diehl (NASA-GSFC)
  2. Aerosol absorption from AERONET presented by O. Dubovik (NASA-GSFC)
  3. Absorbing Aerosol Index (AI) presented by P. Ginoux (GFDL)
  4. Interagency Monitoring of PRotected Visual Environments (IMPROVE) presented by B. Schichtel (NPS)
  5. comparisons of simulated aerosol absorption optical depth to AERONET data presented by S. Szhang (NASA-GISS)
  6. a less absorbing dust – implications to aerosol forcing presented by I. Tegen (IfT)
  7. measuring aerosol absorption from space presented by O. Torres (NASA-GSFC / UMBC)
  8. Aerosol detection and characterization in the near-UV presented by O. Torres (NASA-GSFC / UMBC)

  1. Chracterizing the vertical distributions of aerosol presented by R. Ferrare (NASA-Langley)
  2. Modeled vertical aerosol distributions – comparison to EARLINET and ARM data presented by S. Guibert (LSCE)
  3. Plume heights from MISR presented by R. Kahn (NASA-JPL)
  4. the Regional East Atmospheric Lidar Mesonet (REALM) presented by F. Moshary (CCNY)
  5. the impact of convection on the aerosol vertical distribution in the OSLO-CCM presented by O. Seland (Univ. Oslo)
  6. Global Aerosol Height Distribution from GLAS and MPL Lidars presented by J. Spinhirne (NASA-GSFC)
  7. vertical distribution of aerosol in AeroCom Exp. A presented by C. Textor (LSCE)
  8. CALIPSO – status and a preview on capabilities presented by D. Winker (NASA-Langley)


  1. the AeroCom project – an overview prepared by S. Kinne (MPI, Hamburg)
  2. global data on aerosol optical thickness (aot) prepared by S. Kinne (MPI, Hamburg)
  3. the median model in global aerosol modeling prepared by S. Kinne (MPI, Hamburg)
  4. simulated global fields for aerosol – comparisons among models and to data prepared by S. Kinne (MPI, Hamburg)
  5. correlations of (neighboring) aerosol and cloud properties from MODIS retrievals prepared by S. Kinne (MPI, Hamburg)
  6. signatures of cloud-aerosol interactions from satellite prepared by J.Quass (MPI, Hamburg)

  1. recommended AeroCom aerosol emission sources for the years 1750 and 2000 contributed by F. Dentener (JRC, Ispra)


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