A1B-IPCC S2 scenario

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Well-mixed greenhouse gases

Sulfate aerosol forcing  concentration 

Land-use maps

Ozone concentrations



Well-mixed greenhouse gases 


CO2-CH4-N2O
CFC-12  CFC-11




A1B :
->File in ASCII



Sulfate aerosol forcing concentration : Olivier Boucher  

Documentation
Aerosol files (.nc)

Gridded emissions of SO2 on 1°x1° grid extracted from SRES for A1 scenario (zip file: SO2_Grids_A1.zip)
(used by O. Boucher for computing sulfate concentrations)




Land-use maps:

Annual fractions 1993-2100 on 0.5° grid produced by N. de Noblet (pay attention before downloading as these are very big 107 Mb files - they still need some checking):


documentation [ pdf ]


crop fraction 

pasture fraction



Ozone concentrations:

The ozone fields for the stream 2 simulations for years 1850, 1900, 1950, 1980, 2000, 2050, and 2100 for scenarios are available as monthly mean NetCDF files on a server at UiO: http://folk.uio.no/bjoergr/ensembles
(for more information on the dataset contact Bjørg Rognerud bjorg.rognerud@geo.uio.no )