This is a reasonable assumption because surface redistribution of heat does not alter the calculations and the burying of heat was cyclically static until recent times. (theinconvenientskeptic.com)
In a global or hemispheric average, in contrast, this kind of redistribution of heat cancels out. (realclimate.org)
Surface redistribution of heat does not affect the overall heat radiated from an object or its blackbody temperature. (theinconvenientskeptic.com)