Absorption of terrestrial radiation by H20 and CO2 Infrared radiation emitted from Earth's surface atmosphe Absorbed in window (unabsorbed atmosphere by H,O or cO, H,O absorption spectrum CO, absorption spectrum 4.000 8.000 12,000 16,000 20,00 Wavelength(nm Atmospheric window: 8000-12000nmAbsorption of terrestrial radiation by H2O and CO2 Atmospheric window: 8000-12000nm