17
Absorption
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Visible (0.4-0.7
m
m) is
absorbed very little
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O
2
an O
3
absorb UV
(shorter than 0.3
m
m)
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Infrared (5-20
m
m) is
selectively absorbed
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H
2
O & CO
2
are strong
absorbers of IR
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Little absorption of IR
around 10
m
m –
atmospheric window
Visible
IR
Ahrens, Fig. 2.9