GCOS ECVs, such as Upper-air Temperature, may cover multiple CMIP variables.
The international system of quantities defines quantities such as Thermodynamic Temperature which covers 5 GCOS ECVs and dozens of CMIP variables. Some CMIP variables do not readily match on to existing ISO 80000 quantities.
- CORDEX: downscaling from CMIP6 variables (the CMIP6-to-CORDEX set) and generating new output (CORDEX output request);
- VIACSAB: one of the many MIPs, but perhaps expanded role ...