Page 120 - Science Course 1 (Book 2)

Mo9-L4a: How is Energy Transferred in the Atmosphere?

Let’s Begin
29% ref ected

Energy On Earth
48% absorbed at the surface
As Sun’s radiation passes through the atmosphere,
some of it is absorbed and some of it is ref ected 23% absorbed in
back into space. the atmosphere

Gases and particles in the atmosphere absorb about 20 percent of incoming solar radiation.

Oxygen, ozone, and water vapor all absorb incoming ultraviolet radiation.

Water and carbon dioxide in the troposphere absorb some infrared radiation from the Sun.

Incoming Solar Radiation

6%

Ref ected by
Atmosphere
20%
Ref ected by 19%
Clouds absorbed by
atmosphere
4% and clouds

Ref ected from
Surface

51%
absorbed by Earth’s Atmosphere

Earth’s surface is heated by the
sun and radiates the heat back
out towards space.

Some energy
is ref ected back
out of space

Greenhouse gases in the
atmosphere trap some
of the heat.
Solar energy from the sun
passes through the
atmosphere.

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