This experiment was performed in the USA in 1988 using the Oregon State University low resolution 2-layer atmospheric GCM, coupled to a mixed-layer ocean. The horizontal resolution of the model is 4 deg. latitude by 5 deg. longitude. It is an equilibrium experiment reported in Schlesinger and Zhao (1989) and is widely referred to as "OSU-EQ". We acquired the results from this experiment in 1990 from Roy Jenne at NCAR, Boulder. The change fields used in SCENGEN are calculated as the difference in climate between the 10-year means of the control (1xCO2) and perturbed (2xCO2) simulations. The climate sensitivity of the experiment was 2.8deg C and the global precipitation sensitivity was 2.9% per degree Celsius warming.
Mean monthly precipitation pattern correlation coefficient = 0.59
Schlesinger,M.E. and Zhao,Z-C. (1989) Seasonal climate changes induced by doubled CO2 as simulated by the OSU atmospheric GCM/mixed-layer ocean model J.Climate, 2, 459-495.