q Sun
q Es = (5.67 x 10-8 W/m2 K4) * (6000K)4
q = 73,483,200 W/m2
q
q Earth
q Ee = (5.67 x 10-8 W/m2 K4) * (300K)4
q = 459 W/m2
q
qSun emits
about 160,000 times more radiation per unit area than the Earth because Sun’s temperature is about
20 times higher than
Earth’s temperature.
q è 204 = 160,000