Absorption by H2O in Narrow Windows between 3000 and 4200 CM(-1).
Abstract
The measured H20 absorption in narrow windows between strong lines in the 3000-4200/cm region is consistently greater than that calculated by using standard theoretical line shapes and well-established values of the positions, strengths and widths of the lines. The difference between the experimental and calculated coefficients is called the empirical continuum because it appears to change gradually with changing wavenumber. This extra absorption is attributed to deviations of the shapes of the wings of the collision-broadened absorption lines from the theoretical shapes. Self-broadened lines, from pure H20 samples, display grater deviations than N2 broadened lines from the theoretical shape. The results are consistent with our previous results in the 1300-2200/cm region. Keywords: Atmospheric transmission; Absorption; Continuum absorption; Line shape; Water vapor.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1985
- Accession Number
- ADA166648
Entities
People
- Darrell E. Burch