Geog 204 Physical Geography
Due Tuesday, March 20th
Using the known value of the Solar flux at Earth's orbit, 1370 W/m2, calculate the Solar Flux at Venus and Mars.
How important would you say distance is in determining the solar flux received?
2. Stefan-Boltzmann Law says that the TOTAL flux of radiation emitted by a star is directly related to its absolute temperature. And apparently, the total radiation flux is very sensitive to changes in Temperature (related to 4th power of T), so that
Now, consider a star that is only ½ as hot as our sun. What will be its total flux?
3. Using the answers from Question 1, determine the effective radiating temperatures (Te) of Mars and Venus.
Are these values surprising?
How do you account for the fact that the surface temperature (Ts) on these planets are:
Venus Ts = 730 K Mars Ts = 218 K