Vertical profiles, transport and removal

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AeroCom wiki discussion entry

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AeroCom working group Vertical profiles, transport and removal

Participants

Christiane Textor
Paul Ginoux
Rich Ferrare
Ralph Kahn
Oyvind Seeland
Philippe Stier
Dave Winker (&CALIPSO science team)
Xhiahong Liu
Dorothy Koch
Trond Iverson
Graham Mann
Steve Ghan
Mian Chin, Hiuisheng Bian (GMI)
Michael Schulz
more?


Goals

  • Understanding of model diversity in spatial distribution and in removal processes
  • Evaluate simulated spatial distribution and processes with observations
  • Establish/quantify an acceptable diversity in global aerosol simulations
  • Find methods to evaluate process parameterisations
  • Define dedicated diagnostics of model results
  • Elaborate recommendations
  • Collect data for model evaluation (vertical profiles&processes) including uncertainty
  • This working group has a special focus on dust.


Specific scientific questions

  • How realistic are the simulated (vertical and horizontal) spatial aerosol distributions?
  • How to validate aerosol processes?
  • Is the diversity of simulated vertical dispersal caused by differences in transport or by removal processes?
  • How much complexity of aerosol models is necessary?
  • more


Processes and possible Diagnostics

Document model parameterisations
Assemble observed vertical profiles to evaluate models
PBL vs. Troposphere, look at mesoscale models
Exchange modules (use in the same GCM, link to GMI)


Short-term actions/experiments

Compare AeroCom data to observations
Redo simulation for 2003 with specific diagnostics
Passive tracer experiment (HTAP CO-experiments)
Validate model results with observed vertical LIDAR profiles: Rich and Christiane
Ensure a link to the scavenging workshop planned by NCAR and NASA (P. Rash and J. Rodriguez).

Data to look at

  • vertical distribution

ground-based networks: lidar backscatter (corrected), extinction ARM MPLNET EARLINET
satellites: GLASS, MISR?, CALIPSO aircraft campaigns

  • horizontal distribution

station data (surf conc) networks
satellite data (e.g. on dust episodes to pin down horizontal transport)

  • processes

wet deposition of SO4?
??


Contact persons/experts

provide vertical profile LIDAR data: Rich Ferrare
CALIPSO: Dave Winker
MISR: Ralph Kahn
Access to AeroCom data base: Christiane Textor
Dust questions: Paul Ginoux