Is ESMF being used in any real codes?
Yes! ESMF is being used by the National Weather Service Global Forecast System model at the National Centers for Environmental Prediction, by the GEOS-5 atmospheric general circulation model at NASA Goddard, the coupled HYbrid Coordinate Ocean Model and CICE sea ice model at the Naval Research Laboratory, and many more. Overall there are more than three dozen ESMF-ized components in the community that are at least at the working prototype stage.
