Absorption
¥Visible
(0.4-0.7 mm) is absorbed very little
¥O2 an O3 absorb UV (shorter than 0.3 mm)
¥Infrared
(5-20 mm)
is selectively absorbed
¥H2O
& CO2 are strong absorbers of IR
¥Little
absorption of IR around 10 mm
– atmospheric window
¥
Ahrens,
Fig. 2.9