• Login
     
    View Item 
    •   ORFEO Home
    • Royal Belgian Institute for Space Aeronomy
    • BIRA-IASB publications
    • View Item
    •   ORFEO Home
    • Royal Belgian Institute for Space Aeronomy
    • BIRA-IASB publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Measurements and calculations of H2O broadened by CO2 collisional parameters for planetary atmospheres

    View/Open
    Ducreux(2025a).pdf (2.679Mb)
    Authors
    Ducreux, E.
    Vispoel, B.
    Grouiez, B.
    Gamache, R.R.
    Lepère, M.
    Robert, S.
    Régalia, L.
    Show allShow less
    Discipline
    Physical sciences
    Subject
    High resolution infrared spectroscopy
    Complex Robert-Bonamy-Ma calculations
    Line shape parameters
    Water vapor
    Carbon dioxide
    Planetary atmospheres
    Audience
    Scientific
    Date
    2025
    Metadata
    Show full item record
    Description
    Collisional parameters of H2O with CO2 are currently missing from international spectroscopic databases, although they are essential for accurate modeling of water vapor in CO2-rich planetary atmospheres. In this study, high-resolution infrared spectra of H2O broadened by CO2 were recorded using a Fourier Transform Spectrometer in the 1.18 and 2.34 µm spectral regions. CO2-collisional parameters for selected H2O transitions were derived through a multispectrum fitting procedure employing both Voigt and quadratic speed-dependent Voigt profiles. Furthermore, calculations based on the semi-classical Complex Robert-Bonamy-Ma formalism were performed to estimate CO2-broadened half-widths, line shifts, and their temperature dependencies across various atmospheric transparency windows. It results in a strong agreement between theoretical predictions and experimental data. Finally, the shared calculated linelist, obtained for a wide range of transitions, can be directly applied to radiative transfer modeling of atmospheres primarily composed of carbon dioxide.
    Citation
    Ducreux, E.; Vispoel, B.; Grouiez, B.; Gamache, R.R.; Lepère, M.; Robert, S.; Régalia, L. (2025). Measurements and calculations of H2O broadened by CO2 collisional parameters for planetary atmospheres. , Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 345, A109576, DOI: 10.1016/j.jqsrt.2025.109576.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/14136
    doi: http://dx.doi.org/10.1016/j.jqsrt.2025.109576
    url:
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
    NewsHelpdeskBELSPO OA Policy

    Browse

    All of ORFEOCommunities & CollectionsBy Issue DateAuthorsTitlesDisciplinesThis CollectionBy Issue DateAuthorsTitlesDisciplines
     

    DSpace software copyright © 2002-2016  DuraSpace
    Send Feedback | Cookie Information
    Theme by 
    Atmire NV