Accession Number : AD0607840

Title :   ATMOSPHERIC TRANSMISSION OF INFRARED.

Descriptive Note : Technical Information Series,

Corporate Author : GENERAL ELECTRIC CO ITHACA N Y ADVANCED ELECTRONICS CENTER

Personal Author(s) : Altshuler,T.

Report Date : FEB 1960

Pagination or Media Count : 31

Abstract : The fundamentals of atmospheric molecular absorption and radiation of infrared are discussed, and a procedure for determining this absorption is presented. In addition to molecular absorption, infrared is attenuated by scattering which results from atmospheric particles such as haze, clouds, fog, etc. The scattering phenomenon is covered briefly. The inapplicability of the Lambert-Beer absorption law when considering band spectral absorption by atmospheric gases is demonstrated. The absorption behavior is more closely approximated by various models, for example, the Elsasser, King, Goody, Plass, and the Elder and Streng 'window' models as well as empirical model. Other topics discussed are the background radiation, pressure broadening, models for the distribution of various atmospheric gases, and a sample transmission calculation. (Author)

Descriptors :   (*ATMOSPHERES, INFRARED PHENOMENA), (*INFRARED RADIATION, ABSORPTION), SCATTERING, ATTENUATION, INFRARED DETECTORS, WATER VAPOR, CARBON DIOXIDE, ABSORPTION SPECTRA

Distribution Statement : APPROVED FOR PUBLIC RELEASE