TY - JOUR
T1 - Laboratory measurements and calculations of line shape parameters of the H2O–CO2 collision system
AU - Régalia, Laurence
AU - Cousin, E.
AU - Gamache, Robert
AU - Vispoel, Bastien
AU - Robert, Séverine
AU - Thomas, X.
N1 - Funding Information:
This work was supported by the Programme National de Planétologie (PNP) of CNRS-INSU co-funded by CNES . Several authors (RRG, BV) are pleased to acknowledge support of this research by the National Science Foundation through Grant No. AGS-1622676 . Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. The authors sincerely thank Dr H. Tran from LMD (Paris) for many useful discussions, her expertise and advice on the line profile.
Publisher Copyright:
© 2019 Elsevier Ltd
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019/7/1
Y1 - 2019/7/1
N2 - For decades, the remote sensing measurements have been made in planetary atmospheres in the So- lar System and beyond. As the performance of the space instruments improves, the atmospheric science community is more and more in need of accurate spectroscopic data. The current databases offer some parameters for non-Earth atmospheres but are far from complete for all situations. For example, mea- sured H 2 O line parameters in CO 2 -rich atmospheres such as Mars and Venus are missing while they are of prime importance to learn about the evolution of the atmospheres. New Fourier Transform Spectrom- eter spectra were recorded respectively around 2.7 and 6 μm, using a Connes’ type FT spectrometer built in Reims. The spectra were analysed using a multispectrum fitting procedure to obtain the line-shape parameters of H 2 O broadened by CO 2 . Modified Complex Robert-Bonamy calculations of the half-width, line shift, and their temperature dependence were made in the spectral region from 1300 to 50 0 0 cm −1 . The measurements and calculations are presented and compared with data available in the literature
AB - For decades, the remote sensing measurements have been made in planetary atmospheres in the So- lar System and beyond. As the performance of the space instruments improves, the atmospheric science community is more and more in need of accurate spectroscopic data. The current databases offer some parameters for non-Earth atmospheres but are far from complete for all situations. For example, mea- sured H 2 O line parameters in CO 2 -rich atmospheres such as Mars and Venus are missing while they are of prime importance to learn about the evolution of the atmospheres. New Fourier Transform Spectrom- eter spectra were recorded respectively around 2.7 and 6 μm, using a Connes’ type FT spectrometer built in Reims. The spectra were analysed using a multispectrum fitting procedure to obtain the line-shape parameters of H 2 O broadened by CO 2 . Modified Complex Robert-Bonamy calculations of the half-width, line shift, and their temperature dependence were made in the spectral region from 1300 to 50 0 0 cm −1 . The measurements and calculations are presented and compared with data available in the literature
KW - High resolution infrared spectroscopy
KW - Line shape parameters
KW - Modified Complex Robert-Bonamy calculations, planetary atmospheres
KW - Water vapor-carbon dioxide
UR - http://www.scopus.com/inward/record.url?scp=85064911700&partnerID=8YFLogxK
U2 - 10.1016/j.jqsrt.2019.04.012
DO - 10.1016/j.jqsrt.2019.04.012
M3 - Article
SN - 0022-4073
VL - 231
SP - 126
EP - 135
JO - Journal of Quantitative Spectroscopy and Radiative Transfer
JF - Journal of Quantitative Spectroscopy and Radiative Transfer
ER -