A spectroscopic database for water vapor adapted to spectral properties at high temperature, and moderate resolution |
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Authors: | P Perez L Ibgui |
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Institution: | a ONERA, Optics Department, Optronic Scene Modeling Group, Chemin de la Hunière, 91761 Palaiseau Cedex, France b EADS SPACE Transportation, Signatures and Backgrounds, 66 Route de Verneuil, 78133 Les Mureaux Cedex, France |
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Abstract: | The prediction of infrared spectral radiance from high temperature media such as combustion gases requires spectroscopic data for triatomic molecules like water vapor and carbone dioxyde. At temperature above 2000 K, water vapor spectrum is composed of hundreds of thousands lines making practical computations uneasy. We have set up a spectroscopic database for water vapor, based on three existing lines compilations. This database is well suited to computation of remote sensing spectra where hot gases emission is seen through atmospheric paths. The database enables efficient computation of water vapor spectra between 600 and 6600 cm−1 at moderate spectral resolution (5 cm−1). It has been used to compute parameters of a statistical narrow band model which are used in practical applications. |
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Keywords: | Water vapor Spectroscopic database Infrared Remote sensing |
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