* '''Surface Heat Flow''' is the heat that continuously comes up to the surface. It is read in joules per second. It is estimated that the average is 42 x 1012 J/sec and has two different sources: | * '''Surface Heat Flow''' is the heat that continuously comes up to the surface. It is read in joules per second. It is estimated that the average is 42 x 1012 J/sec and has two different sources: |