The intermediate but not widely known CMIP phase (called CMIP4 by the WGCM committee) modestly supplemented the experiments performed in CMIP3 with, for example, single-forcing experiments that held all but one of the twentieth-century forcings fixed.
The CMIP Panel, a subgroup of WGCM, traditionally has the responsibility for direct coordination and oversight of CMIP and has defined phase 6 of CMIP (i.e., CMIP6) in consultation with the climate science community (Eyring et al.
Preliminary results of this survey were presented during the summer of 2013 at meetings at the Energy Modeling Forum in Snowmass, Colorado; the Aspen Global Change Institute (AGCI) in Aspen, Colorado; and the WGCM meeting in Victoria, Canada, in the fall of 2013 (see template and presentations under "CMIP5 Survey" at www.wcrp-climate.org/wgcm-cmip/wgcm-cmip6).
For example, infrastructure issues highlighted by the survey are now under the purview of the WGCM Infrastructure Panel (WIP).
In 2006, the Working Group on Coupled Modeling (WGCM
) agreed to promote a new set of coordinated climate model experiments to explore, for instance, the ability of models to predict climate on decadal time scales.
Figure 1 illustrates the essence of the approach: The goal is to use the CMIP5 simulation protocol, produced by the WCRP's Working Group on Coupled Modeling (WGCM
), which organizes climate model intercomparisons (top path in figure) to select the satellite observations that constitute the datasets being put together in this project and create a parallel path for the observations (bottom path in figure).