ESS220
Prof. Jin-Yi Yu
Greenhouse
Effect
heat
sunlight
§ allow
sunlight to come in
§ trap
heat inside the house
Greenhouse
Atmosphere
S/4 * (1-A)
sTS4
sTA4
sTA4
q For Earth’s surface:
S/4*(1-A) + sTA4 = sTS4
q For the atmosphere:
sTS4 = 2sTA4
èTA=Te = 255K
èTs = 2
¼ TA = 303K