Using a tunable source of monochromatic radiation (BWO) and a pneumatic detector, the field and laboratory investigations have been performed to obtain spectral distribution of atmospheric water vapor absorption coefficient in transparent windows centered at the wavelengths of 0.88 and 0.73 mm.
Results of our laboratory measurements in comparison with laboratory investigations of (30) and theoretical data (ρ=19 g.m-3, T=25.5oC, P =730 Torr ). Our total absorption is shown by circles.