LLNL-EQ

This experiment was performed in the USA in 1989 at the Lawrence Livermore National Laboratory using the Oregon State University low resolution 2-layer atmospheric GCM, coupled to a simple two-layer ollard ocean model (Pollard, 1982). The horizontal resolution of the model is 4 deg. latitude by 5 deg. longitude. It is an equilibrium experiment referred to as "LLNL-EQ". We acquired the results from this experiment in 1990 directly from Larry Gates at LLNL, California. 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 3.8deg C and the global precipitation sensitivity was 2.6% per degree Celsius warming.

Mean monthly precipitation pattern correlation coefficient = 0.56

References

Pollard,D. (1982) The performance of an upper ocean model coupled to an atmospheric GCM: preliminary results Research Report No.31, Climatic Research Institute, Oregon State University, Corvallis OR.