Heat Flow Unit (Hfu)
Heat Flow Unit (Hfu) :
Terrestrial heat flow values are commonly given in the SI units mW m-2 (milli-Watt per square meter). However, in older publications and maps the heat flow is usually given in cgs units of μcal/cm2 sec, or 10-6 cal cm-2 sec-1 . The conversion relationship is1 μcal cm-2 sec-1 = 41.84 mW m-2 . Occasionally some authors used the term “heat flow unit” or “HFU” for “μcal cm-2 sec-1.
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