Accession Number : ADA335405

Title :   Calculations of Self-Broadened Line Widths and Database Maintenance for HITRAN

Descriptive Note : Final rept. 6 May 92-6 Aug 97

Corporate Author : MASSACHUSETTS UNIV LOWELL DEPT OF ENVIRONMENTAL EARTH AND ATMOSPHERIC SCIENCES

Personal Author(s) : Gamache, Robert R.

PDF Url : ADA335405

Report Date : AUG 1997

Pagination or Media Count : 136

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.

Descriptors :   *DATA BASES, *MOLECULAR SPECTROSCOPY, *ATMOSPHERIC PHYSICS, DATA MANAGEMENT, MOLECULAR VIBRATION, HIGH TEMPERATURE, OXYGEN, CARBON MONOXIDE, OZONE, WATER VAPOR, MOLECULAR ENERGY LEVELS, LINE SPECTRA, HYDROGEN PEROXIDE.

Subject Categories : Atmospheric Physics
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE