EOV's are essential ocean variables, that reflect physical, chemical, or biological processes in the oceanic system. EOV's are defined by the Ocean Observations Physics and Climate Panel (OOPC) of the Global Ocean Observing System (GOOS), which in turn is led by the Intergovernmental Oceanographic Commission (IOC) of UNESCO.
In a collaborative joint development (IHFC of IUGG, TF8 of ILP), the definition of a new EOV is prepared that reflects the heat flow at the interface between lithosphere and oceanic hydrosphere. Heat-flow and oceanic experts will discuss and develop the foundation for such a new EOV definition. During the open splinter meeting, the process will be introduced to interested EGU attendees. This open meeting is followed by a two-day writing workshop.