The Sun radiates at an effective temperature of 5780 K and has a radius of about 696,000 km. Remembering that 1 AU = 149,600,000 km, derive the approximate value of the solar flux at Earth's orbit. Compare your answer with the value given in the text
What will be an ideal response?
Given:
Effective temperature of Sun: Te= 5780 K; Te= ((S/4?)(1-A))1/4
Radius of Sun: r 0= 696,000 km
1 AU = 149,600,000 km
Solar Flux (S): S0= ?T04
S0= ?(5780)4
S0= 6.328 ? 107 W/m2
S = S0(r0/r)
S = 6.328 ? 107 (696,000/149,600,000)2
S = 6.328 ? 107 (2.164 ? 10-5)
S = 1370 W/m2
You might also like to view...
The three supercontinents that existed in the Late Proterozoic were East Gondwana, Laurasia,
and Pangaea. Indicate whether the statement is true or false.
Which statement relates to weather rather than climate?
a. The average temperature for the month of January is 28°F. b. The lowest temperature ever recorded in Frozenlake, Minnesota is -57°F. c. The foggiest month of the year is December. d. I like the warm, humid summers. e. It is cloudy and snowing outside.
In cold climates, regions of permafrost are good places to build on because the ground stays frozen to the surface all year
a. True b. False Indicate whether the statement is true or false
Volcanic activity occurs at all of the following except ________.
A. mid-ocean ridges B. convergent boundaries between two continental plates C. convergent boundary between a continental and oceanic plate D. convergent boundaries between two oceanic plates E. continental rift valleys