Abstract

High-resolution spectra of oxygen-enriched samples of water vapor were recorded with a Fourier-transform spectrometer covering transitions in the (010)–(000) bands. The measured line frequencies were used along with measurements taken from studies at microwave and far-infrared frequencies to obtain rotational energy levels in the (000) and (010) states of H217O and H218O. Measurements of the line strengths were fitted to a model in which as many as 18 transition moment parameters were determined. The results produced computed line-strength values that are in excellent agreement with the 623 H217O experimental transition strengths and 696 H218O values. These results provide a more accurate representation of the line positions and strengths for the (010)–(000) bands of H217O and H218O than those previously available.

© 1992 Optical Society of America

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