GISS-EQ

This experiment was performed in the USA in 1983 using the Goddard Institute for Space Studies low resolution 9-layer atmospheric GCM, coupled to a mixed-layer ocean. The horizontal resolution of the model is 8 deg. latitude by 10 deg. longitude. It is an equilibrium experiment reported in Hansen et al. (1984) and is widely referred to as "GISS" (we distinguish it from the GISS transient experiment performed in 1988 by calling is "GISS-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 4.2deg C and the global precipitation sensitivity was 2.8% per degree Celsius warming.

Mean monthly precipitation pattern correlation coefficient = 0.58

References

Hansen,J. et al. (1984) Climate sensitivity analysis of feedback mechanisms pp. 130-163 in, 'Climate processes and climate sensitivity' (eds.) Hansen,J. and Takahaski,T., Geophysical Monograph No.29, AGU, Washington DC.