TY - JOUR
T1 - Collision induced absorption in HITRAN2024
T2 - Enhanced and improved data for atmospheric and planetary studies
AU - Terragni, J.
AU - Gordon, I. E.
AU - Adkins, E. M.
AU - Boulet, C.
AU - Campargue, A.
AU - Chistikov, D.
AU - Finenko, A.
AU - Finkenzeller, H.
AU - Fleurbaey, H.
AU - Hargreaves, R. J.
AU - Hanson, R. K.
AU - Hartmann, J. M.
AU - Klingberg, A.
AU - Kohler, E.
AU - Koroleva, A. O.
AU - Mondelain, D.
AU - Piccioni, G.
AU - Stefani, S.
AU - Strand, C. L.
AU - Tran, H.
AU - Turbet, M.
AU - Vigasin, A.
AU - Vitali, F.
AU - Volkamer, R.
AU - Wei, C.
N1 - Publisher Copyright:
© 2025
PY - 2025/12/1
Y1 - 2025/12/1
N2 - Collision-Induced Absorption (CIA) phenomena play a key role in the atmospheric energy balance, making their accurate parametrization a decisive factor in modeling planetary atmospheres. This is the primary reason why the HITRAN spectroscopic database includes a dedicated section for CIAs. This section became available for the first time in 2012, followed by its first update in 2019. Six years since the first update, and with a significant amount of new data now available, it is timely to issue a second update. In this update, new data regarding collisional pairs that appear in the CIA section for the first time ( N2–Ar, and CO2– H2O) are presented. Concerning collisional pairs already present in the database, new data extending both spectral and temperature ranges are available for CO2– CO2, CO2– H2, CO2– CH4, H2– N2, O2– O2, and O2– CO2, while new experimental data about H2– H2 and H2–He have been included alongside the respective theoretical calculations. Data sources, comparisons among different data, and selection criteria, are discussed in detail. The final section is focused on identifying the CIA data that would be most valuable for the planetary science and astrophysics community in the future.
AB - Collision-Induced Absorption (CIA) phenomena play a key role in the atmospheric energy balance, making their accurate parametrization a decisive factor in modeling planetary atmospheres. This is the primary reason why the HITRAN spectroscopic database includes a dedicated section for CIAs. This section became available for the first time in 2012, followed by its first update in 2019. Six years since the first update, and with a significant amount of new data now available, it is timely to issue a second update. In this update, new data regarding collisional pairs that appear in the CIA section for the first time ( N2–Ar, and CO2– H2O) are presented. Concerning collisional pairs already present in the database, new data extending both spectral and temperature ranges are available for CO2– CO2, CO2– H2, CO2– CH4, H2– N2, O2– O2, and O2– CO2, while new experimental data about H2– H2 and H2–He have been included alongside the respective theoretical calculations. Data sources, comparisons among different data, and selection criteria, are discussed in detail. The final section is focused on identifying the CIA data that would be most valuable for the planetary science and astrophysics community in the future.
KW - Collision-induced absorption
KW - HITRAN
KW - Molecular spectroscopy
KW - Spectroscopic database
UR - https://www.scopus.com/pages/publications/105017241360
U2 - 10.1016/j.jqsrt.2025.109631
DO - 10.1016/j.jqsrt.2025.109631
M3 - Article
AN - SCOPUS:105017241360
SN - 0022-4073
VL - 347
JO - Journal of Quantitative Spectroscopy and Radiative Transfer
JF - Journal of Quantitative Spectroscopy and Radiative Transfer
M1 - 109631
ER -