Absorption Measurements of CO2 and H2O at High Resolution and Elevated Temperatures

摘要

High resolution (0.007 cm-1) high temperature (to 800K) measurements on H2O and several isotopes of CO2 using the AFGL high resolution cat's eye interferometer are presented. The instrumentation used is briefly described and resulting line positions used to obtain spectroscopic constants are tabulated. A general description of the technique used for identifying transition frequencies is given as well as its specific application to H2O and CO2 molecules. Comparisons of calculations of line positions using spectroscopic constants obtained from high temperature data with those obtained at room temperature are presented. A global fit approach to the CO2 data is also discussed, incorporating high resolution measurements throughout the infrared to achieve a self-consistent set of spectroscopic constants.(Author)