Spectroscopic observations of middle atmosphere composition

Abstract

The principal advantages and disadvantages of spectroscopic techniques as a means of deducing the composition of the middle atmosphere are reviewed. A brief general survey is given, which includes methods using natural or artificial radiation sources, used in remote-sensing or local sampling configurations, and at spectral wavelengths ranging from the ultraviolet to the microwave. Limitations of space dictate an emphasis on the infrared methods using natural radiation sources employed by most workers in this field.