Using radiation modeling we estimated how strong the climate forcing would be for each scenario, and then ran general circulation models to see how that forcing would change the climate.
The theory, as embodied
in radiation models, is in extremely good agreement with all available observations.
In Figure 1, I use the
NCAR radiation model, and don't make any assumption about the apparent sky emittance.
He leads the development of the accurate and efficient longwave and
shortwave radiation model, RRTMG, and he is currently studying its impact on simulations with the WRF weather research and forecasting model.
Sure, he also equated (perhaps unknowingly) GCM's
with radiation modelling techniques so that the audience might further confuse the former with the straight - forward latter.
Between 1982 and 1990, a number of federal agencies commissioned intercomparison studies
of radiation models in clouds.
Further information on RRTMG and all of AER's
radiation models is available at the AER radiative transfer web site.
For instance Otto et al 2015 tells that the Earth is accumulating around 0.6 Watt / m ^ 2 per annum, from the 334W / m ^ 2 coming from the Sun in
their radiation model.
He recalled that the committee meetings prompted him to ask Manabe to add CO2 to
his radiation model.
They took some «hot off the presses» satellite data from the SORCE mission (which has been in operation since 2003) and ran it through a relatively complex chemistry /
radiation model.