presentation of the gems-aerosol sub-project gems kick-off meeting hamburg, 4-6 july 2005
DESCRIPTION
Presentation of the GEMS-aerosol sub-project GEMS kick-off meeting Hamburg, 4-6 July 2005. PARTNERS - Met Office, UK (coordination) - ECMWF - CNRS-LOA, France - CEA-IPSL-LSCE, France - UPMC-SA, France - NUIG, Ireland - RMIB, Belgium - DWD, Germany - MPI-M, Germany - FMI, Finland - PowerPoint PPT PresentationTRANSCRIPT
Presentation of the GEMS-aerosol
sub-project
GEMS kick-off meeting
Hamburg, 4-6 July 2005
PARTNERS
- Met Office, UK (coordination)- ECMWF - CNRS-LOA, France- CEA-IPSL-LSCE, France - UPMC-SA, France- NUIG, Ireland - RMIB, Belgium- DWD, Germany- MPI-M, Germany - FMI, Finland- DLR, Germany (no-cost partner)
The consortium cover competences in modelling, data assimilation, data from satellite and ground, and in-situ ground measurements.
Products Usage
4D distribution of aerosol concentrations at 50-100 km resolution(troposphere and stratosphere)
climate research; monitoring of the atmosphericchemical composition; monitoring of thestratosphere (air traffic); monitoring of volcaniceruptions for local populations; initial and boundaryconditions for regional air quality models
4D distribution of aerosol optical properties at 50-100 kmresolution (troposphere and stratosphere)
atmospheric corrections for remote sensing of landsurfaces and ocean;
prediction of surface UV radiation
Surface distribution of particulate matter PM regional air quality
Improved visibility range air traffic, tourism
Improved photosynthetically active radiation (PAR) at the surface study of the carbon cycle; monitoring of the Kyotoprotocol
Aerosol deposition flux (dry and wet) study of the ocean biology; impact on ecosystems(acid rain monitoring)
Improved photolysis rates regional air quality; global monitoring of theatmospheric chemical composition
Improved surface, atmospheric, and top-of-atmosphere radiativebudget
climate research
GEMS integrated project - AER sub-project
AER_2Emissions
AER_3Data
assimilation
AER_1Aerosolmodel
AER_4validation
DAEDALUS/ ASSET
PHOENICS/ PARTS
GlobAER(ESA)
GRG
GHG
RAQ
Aerosol satellite data
(AOD, radiances)
ESAEUMETSAT
NASA
Methodology
Globalaerosol
monitoringsystem
Emissions
Boundary conditionsAerosol models
Heterogeneous chemistry
Oxidants
Various datasets / CREATE
GEIA / ACCENT / RETRO /
EMEP
ESANASA
Fire counts
Emission maps
GEMS-AerosolAER_1: Implementation of the direct physical aerosol model in the ECMWF
model (O.Boucher, J. Feichter, J.-J. Morcrette, others)
> implementation of parametrisations for tropospheric aerosols
> implementation of parametrisations for stratospheric aerosols
> implementation of new emission inventories
> implementation of aerosol optical properties
> production of test simulations
Met Office, MPI-M, CEA-IPSL-LSCE, ECMWF, SA-UPMC
Different aerosol physics and chemistry will be tested
Criteria for model implementation
- parametrisations need to be consistent with the ECMWF physics
- skill scores
- computer time
Tremendous progress in the last 6 months thanks to JJM’s work at ECMWF
GEMS-AerosolAER_2: Refinement of aerosol emission sources (M.Sofiev)
> update and assimilation of the anthropogenic emission inventories of aerosol and its precursors
> assimilation of information on wild fires
> quantification of the wind-blown dust emission from desert areas
> quantification of the wind-blown sea salt emission
> sources of stratospheric aerosols
FMI, CEA-IPSL-LSCE, MPI-M, SA-UPMC
Work started
- M. Sofiev (FMI) + J. Flemming (HALO) + ACCENT meeting in Jan.
Cross-cutting issue with RAQ, GRG, and GHG
We have to give a lot of thinking on biomass burning emissions:
What we do now has to be compatible with what can be made operational in the future.
AER_3: Aerosol data assimilation (J-J Morcrette)
> adaptation of RT codes for SW and LW radiances in nadir geometry
> preparation and harmonisation of aerosol satellite data sets
> error covariance matrices
> test of a 1D-Var system using aerosol products
> test of a 1D-Var system using aerosol radiances
ECMWF, CEA-IPSL-LSCE, Met Office, CNRS-LOA, SA-UPMC
Probably the work package which needs most coordination!
4D-VAR of aerosols properties and radiances is something NEW.
GEMS-Aerosol
AER_4: Evaluation of the model and analyses (C.O’Dowd, I. Chiapello)
> assessment of diagnostics and skill scores
> evaluation of aerosol radiative properties and associated radiative fluxes
> evaluation of aerosol physico-chemical properties
> analysis of model results with respect to air quality
NUIG, CNRS-LOA, CEA-IPSL-LSCE, DWD, ECMWF, MPI-M, RMIB, SA-UPMC
The basic idea is to use
- AEROCOM for global, monthly-mean model validation
- a variety of comparisons to measurements for validating the details
(transport, dust events, chemical composition over Europe, etc…).
Validation of aerosol properties but also radiation.
GEMS-Aerosol
Agency Mission Instrument Parameters Data volumeper day of satellitelife (Mb)
ESA ENVISAT MERIS AerOpDepth @0.865 ~250 maxAngstrom coefficientRadiances 7 WL
ESA ERS-2 ATSR Radiances used in TBDENVISAT AATSR GLOBAER project
EUMETSAT MSG SEVIRI Radiances low/moderateMSG GERB Radiation budget low/moderate
NASA TERRA MODIS AerOpDepth ~600AQUA Type
Size distributionRadiances
NASA AURA HIRDLS AerOptThickn 4 WL low/moderateNASA SAGE-2 AerOptThickn 8 WL low, available from
SAGE-3 AerOptThickn 8 WL Web
Development of a prognostic aerosol packagein the ECMWF model
Physics
Radiation
Vertical diffusion
Mass-flux convection
Large-scale condensation
Cloud scheme
Physics with prognostic aerosols
Radiation
Aerosol sources
Dry deposition
Sedimentation
Vertical diffusion
Mass-flux convection
Large-scale condensation
Cloud scheme
Scavenging in- and below clouds
Aerosol budget
Aerosol radiance diagnostics
New routine
Modified routine
Unchanged (at present)
80ON 60ON 40ON 20ON 0O 20OS 40OS 60OS 80OS60
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Average of aermr01 20010501 1200 step 120 Expver en20 (180.0W-180.0E)
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Bin 1: 0.03 – 0.5 m
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Surface Sedimentation xx m-2: Sea-Salt bin 1Tuesday 1 May 2001 12UTC ECMWF Forecast t+24 VT: Wednesday 2 May 2001 12UTC Surface: **
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Surface Source xx m-2: Sea-Salt bin 1Tuesday 1 May 2001 12UTC ECMWF Forecast t+24 VT: Wednesday 2 May 2001 12UTC Surface: **
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Surface source flux Sedimentation flux
Configuration B: sea salt a la LMD-Z
What has been done within the forecast model
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Surface Source xx m-2: Sea-Salt bin 2Tuesday 1 May 2001 12UTC ECMWF Forecast t+24 VT: Wednesday 2 May 2001 12UTC Surface: **
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Surface Sedimentation xx m-2: Sea-Salt bin 2Tuesday 1 May 2001 12UTC ECMWF Forecast t+24 VT: Wednesday 2 May 2001 12UTC Surface: **
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80ON 60ON 40ON 20ON 0O 20OS 40OS 60OS 80OS60
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Surface source flux Sedimentation flux
80ON 60ON 40ON 20ON 0O 20OS 40OS 60OS 80OS60
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Average of aermr03 20010501 1200 step 120 Expver en20 (180.0W-180.0E)
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Bin 3: 5 – 20 m
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Surface Source xx m-2: Sea-Salt bin 3Tuesday 1 May 2001 12UTC ECMWF Forecast t+24 VT: Wednesday 2 May 2001 12UTC Surface: **
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Surface source flux
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30°N 30°N
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Surface Sedimentation xx m-2: Sea-Salt bin 3Tuesday 1 May 2001 12UTC ECMWF Forecast t+24 VT: Wednesday 2 May 2001 12UTC Surface: **
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Cross-cutting issues
Emissions - consistency with GRG and RAQ- NRT biomass burning emissions
Oxidant fields from GRG
Heterogeneous chemistry ==> GRG
Technical aspects: positiveness, data assimilation, data flow …