Longwave radiation

Question 1

Longwave radiation

Answer 1

Exchanged between sky, surface and all surrounding

objects (trees, etc.)

Question 2

The atmosphere is
a _______
in the longwave

Answer 2

selective absorber

Question 3

The most significant

absorbing gases are:

Answer 3

- water vapour (the
most important)
- CO2
- O3
- O2
- N2O
- CH4

Question 4

coldest

nights are…

Answer 4

those with cloudless skies or only high cirrus clouds because cloud has a large effect on and the incoming long waves

Question 5

the surface is usually warmer than the…

Answer 5

atmosphere therefore the net longwave

L* is usually negative

Question 6

why is the Atmosphere somewhat like greenhouse glass?

Answer 6

it is transparent to shortwave but opaque to longwave

radiation

Question 7

Important greenhouse gases:

Answer 7

-H2O
- CO2
- O3
N2O
- CH4
- CFC-11
- CFC-12

Question 8

what is earth’s average surface temperature?

Answer 8

~15 degrees

Question 9

what would earth’s average surface temperature be without an atmosphere?

Answer 9

~ - 18 degrees

Question 10

The greenhouse effect is worth how much?

Answer 10

~ 33 degrees