Three new experiments have been initiated.
The first involves a comparison of upper-air model output.
In this experiment the transport models are run for 2002 and 2003 using prescribed fluxes (biosphere, ocean and fossil CO2, SF6 and radon). Hourly CO2 concentration is output for comparison with in-situ CO2 measurements.
In this experiment prescribed methane (CH4), methyl chloroform (CH3CCl3), SF6 and radon fluxes are input to a transport model and 20 years of simulation is run with meteorological forcing appropriate for 1988-2007.