Abstract

There is in progress an experimental study of the meteorologically important 50 μ pure rotation band of water vapor. Transmission through a 196-m path under a range of known conditions of water concentration and of nitrogen pressures is measured. This first paper reports transmission spectra for the region 20 μ to 31.7 μ at a resolution of about 4 cm⁻¹. The water vapor partial pressure ranges from 0.02 to 0.7 cm Hg and the nitrogen partial pressure from 0 to 60 cm Hg. The method for sample analysis is indicated and the importance of adsorption effects demonstrated.

© 1957 Optical Society of America

Long Path Water Vapor Spectra with Pressure Broadening. II. 29 μ to 40 μ*

C. Harvey Palmer
J. Opt. Soc. Am. 47(11) 1028-1031 (1957)

Ratio-Recording System for the Johns Hopkins 100-Foot Absorption Cell*

C. Harvey Palmer
J. Opt. Soc. Am. 47(5) 367-377 (1957)

Transmittance of Water Vapor—14 to 20 Microns*

Frederic R. Stauffer and Thomas E. Walsh
J. Opt. Soc. Am. 56(3) 401-405 (1966)

Experimental Transmission Functions for the Pure Rotation Band of Water Vapor*

C. Harvey Palmer
J. Opt. Soc. Am. 50(12) 1232-1242 (1960)

Infrared Emission Spectra of the Atmosphere between 14.5 μ and 22.5 μ*

Darrell E. Burch and John H. Shaw
J. Opt. Soc. Am. 47(3) 227-229 (1957)