\ Reected Outgoing solar ave radiatibn . Hort 192 . 239 Reected by Emitted by clouds, aerosols, tm he . ' , . and atmosphere . a 3561; re / '...

Use the energy balance diagram (Figure 3.38 in the textbook and lecture slides) to help answer the

following questions.

Please show your work for #1-3.

1. What percentage of the sun's incoming radiation is

a) absorbed by the Earth's surface? (1 point)

b) absorbed by the atmosphere? (1 point)

c) reflected out to space? (1 point)

2. What percentage of the earth's outgoing surface radiation is absorbed by the atmosphere and clouds? (1 point)

3. What percentage of the radiation absorbed by the earth's surface comes directly from the

atmosphere and clouds? Most of this radiation from the atmosphere and clouds is emitted by

greenhouse gases. (2 points)

2

4. If the sun's radiation was to increase by 10%, how would the following energy units change

(increase, decrease, or stay the same)?

a) Energy absorbed by the Earth's surface. (1 point)

b) Energy emitted by the Earth's surface. (1 point)

c) Energy emitted by greenhouse gases. (1 point)

d) Energy leaving the top of the atmosphere (to space). (1 point)