MIPAS database: Validation of HNO3 line parameters using MIPAS satellite measurements

Abstract

Using new and accurate experimental results concerning the spectroscopic properties of the HNO3 molecule as well as improved theoretical methods it has been possible to generate an improved set of line parameters for this molecule in the spectral range covered by the MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) experiment. These line parameters, which have been validated using broadband atmospheric spectra recorded by MIPAS, have been included in the last version of the MIPAS spectroscopic database to be used for future processing of the MIPAS spectra. ing broadband emission spectra of the atmosphere recorded by MIPAS it has been possible to validate the consistency of the HNOs line parameters in the various spectral ranges covered by the MIPAS experiment. In order to facilitate reading the manuscript we give in Table 1 the usual spectroscopic notation together with the notation used in the MIPAS database as well as in the H1TRAN database, up to the 2000 release (Rothman et al., 2003), and the band centers of the cold bands and of some hot bands or combination bands which will be included in the new version PF3.2 of the MIPAS database.