These data are held by the BADC for the Natural Environment Research Council (NERC) Molecular Spectroscopy Facility (MSF). MSF provides world-class scientific equipment and support for infrared (IR),visible, and ultraviolet (UV) spectroscopy. The MSF laboratories are used by many UK and international customers in a wide range of research and development programmes. The data are spectra of various atmospheric gases. These data are public.

The aim of HITRAN (high-resolution transmission molecular absorption database) was to characterise the amount and wavelength-dependence of absorption by water vapour and other atmospheric species. It was part of the Natural Environment Research Council (NERC) funded Clouds, Water Vapour and Climate (CWVC) program. The dataset contains spectral line parameters derived from laboratory measurements on pure water vapour, and mixtures of water vapour and air. The measurements were made at STFC Rutherford Appleton Laboratory Molecular Spectroscopy Facility, and the line fitting was carried out by the Department of Meteorology at the University of Reading. The spectral line parameters are displayed in HITRAN format. Water vapour lines were fitted to the laboratory data in the spectral range 5037 to 5585 cm-1. These data are public.

The 'Measurement of H2O Absorption Cross-Sections for the Exploitation of GOME’ project is a European Space Agency (ESA) funded study. The GOME (Global Ozone Monitoring Experiment) instruments are downward-viewing satellite-borne spectrometers. The study, undertaken between April 1999 and August 2000, has significantly improved knowledge of the absorption cross-sections and line parameters for water vapour in the near-infrared and visible spectral regions through a powerful combination of laboratory measurements, spectral analysis, and theoretical calculations. The dataset contains distributions and vertical profiles of atmospheric chemical species (in particular ozone) as well as the distribution of trace atmospheric species. This dataset is public.

The 'Measurement of H2O Absorption Cross-Sections for the Exploitation of GOME’ project is a European Space Agency (ESA) funded study. The GOME and SCIAMACHY instruments are downward-viewing satellite-borne spectrometers that observe back-scattered solar radiation from the Earth's atmosphere. Global data on the distributions and vertical profiles of a large number of chemical species present in the atmosphere can be determined from the observations. Ozone distributions are a key measurement, but many other atmospheric gases and vapours involved in ozone chemistry and global climate change are also measured. Water vapour is of particular significance because it dominates the energy balance of the atmosphere. Also the spectrum of water vapour must be adequately understood and accounted for when deriving the concentration or distribution of trace atmospheric species. The dataset contains distributions and vertical profiles of atmospheric chemical species (in particular ozone) as well as the distribution of trace atmospheric species. This dataset is public.

The aim of HITRAN (high-resolution transmission molecular absorption database) was to characterise the amount and wavelength-dependence of absorption by water vapour and other atmospheric species. It was part of the Natural Environment Research Council (NERC) funded Clouds, Water Vapour and Climate (CWVC) program. The dataset contains spectral line parameters derived from laboratory measurements on pure water vapour, and mixtures of water vapour and air. The measurements were made at STFC Rutherford Appleton Laboratory Molecular Spectroscopy Facility, and the line fitting was carried out by the Department of Meteorology at the University of Reading. The spectral line parameters are displayed in HITRAN format. Water vapour lines were fitted to the laboratory data in the spectral range 5037 to 5585 cm-1. These data are public.