Atmospheric Absorption/Emission Observations is historical digital data set DSI-9703, archived at the National Climatic Data Center (NCDC). This data file contains a compilation developed by the U.S. Air Force Geophysics Laboratory (AFGL) for spectroscopic data of several gases occurring naturally in the terrestrial atmosphere. The gases included in this compilation are carbon dioxide, ozone, ... nitrous oxide, carbon monoxide, water vapor, methane and oxygen. The spectral region covered extends from one micrometer to the far infrared and data are presented on more than 100,000 spectral lines. These line data are sufficient to calculate infrared and visible transmissions through atmospheric paths. The major parameters included in the data file are line center, transition intensity, half-width, lower-state energy, upper vibration level, lower vibration level, upper rotational quantum, lower rotational quantum, isotope code, and molecular identification.