Study of High Frequency Water Vapor Absorption Parameters
Abstract
Optical remote sensing and studies of the propagation of radiation through long atmospheric paths require a precise knowledge of the spectral parameters of molecular absorbers contributing to the opacity. Because of technological considerations, the first spectroscopic efforts were devoted to the mid and infrared regions. Recent advances in optics have now created a need for precise spectroscopic data from the near-infrared to the visible and the purpose of the project was to improve the spectroscopic parameters of water vapor which is, with oxygen, the main atmospheric absorber in this spectral region. This report summarizes the results obtained on the water absorption spectrum in the spectral regions 8000-11500/cm and 13500-22700/cm. The spectra were recorded at high resolution with a Fourier transform spectrometer using a multipath cell allowing path lengths up to 434 m. A thorough analysis has been performed and greatly improved line positions, intensities and assignments have been obtained providing a precise and complete picture of the water spectra in the concerned spectral regions. These results of important atmospheric interest will be included in the next version of the HITRAN data base.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 1989
- Accession Number
- ADA210676
Entities
People
- Claude Camy-peyret
- Jean-marie Flaud
Organizations
- Pierre and Marie Curie University