Calculations of Self-Broadened Line Widths and Database Maintenance for HITRAN
Abstract
Total internal partition functions were calculated and polynomial coefficients determined for all species present on the 1992 HITRAN database and for some of the additional species on the 1996 HITRAN database. All spectroscopic parameters for the oxygen molecule have been recalculated and files created for HITRAN96. Halfwidths and line shifts for a number of bands of water vapor have been calculated using the Complex Robert-Bonamy Formalism (CRBF) method developed at UMass Lowell and a comparison with experimental measurements made. The results of the calculations are summarized. The calculations of spectral parameters for other species on HITRAN are discussed. These include work done on ozone, hydrogen halides, carbon monoxide, NH3, H2O2, Transition moment squared, the addition of other molecules to the database, and degeneracy factors. A discussion of the work done on the high temperature molecular database, HITEMP, is discussed. Finally, important relationships between the Einstein coefficients, line intensities, integrated line intensities, transition moments squared, oscillator strengths, and gereneracy factors are derived and presented. Warnings of numerous errors in the literature for these factors are discussed and corrections issued.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1997
- Accession Number
- ADA335405
Entities
People
- Robert R. Gamache
Organizations
- University of Massachusetts Lowell