2.大气温度层结 coming solarradiation 500km1200℃ toP>IO2l O2+,O”,NO Thermosphere High energy ultraviolet: A <100 nm, Infrared, visible, and ultraviolet Ultraviolet: Penetration to 200 km 200-330nm, 2330 nm, penetration to Eearth's penetration surface to 50 km 1200km,|O=|O2l 5km-92℃ Mesosphere O, NO 50km--2℃ O3+h(220m330mm)→O2+O Stratosphere 10-16km Troposphere H20, cO, .I Sea level ●● Eath:° Figure 2-3 Major regions of the atmosphere(not to scale). 2. 大气温度层结 Figure 2-3. Major regions of the atmosphere (not to scale). . . . . . . . .. . Earth . Sea level Stratosphere N2, O2 Troposphere H2O, CO2 Mesosphere Thermosphere O3 10-16 km 50 km 85 km 500 km 15 ℃ -56 ℃ -2 ℃ -92 ℃ 1200 ℃ O3 + hv (220 nm-330 nm) → O2 + O O2 + , NO+ Incoming Solar radiation [O]>>[O2 ] O2 + , O+ , NO+ 1200 km, [O]=[O2 ] High energy ultraviolet: λ<100 nm, Infrared, visible, and ultraviolet: Penetration to ～ 200 km λ>330 nm, penetration to Eearth’s surface Ultraviolet: λ200-330 nm, penetration to ～ 50 km