Update of the HITRAN collision-induced absorption section

Abstract Correct parameterization of the Collision-induced Absorption (CIA) phenomena is essential for accurate modeling of planetary atmospheres. The HITRAN spectroscopic database provides these parameters in a dedicated section. Here, we significantly revise and extend the HITRAN CIA data with respect to the original effort described in Richard et al. [JQSRT 113 , 1276 (2012)]. The extension concerns new collisional pairs as well as wider spectral and temperature ranges for the existing pairs. The database now contains CIA for N 2 N 2 , N 2 H 2 , N 2 CH 4 , N 2 H 2 O, N 2 O 2 , O 2 O 2 , O 2 CO 2 , CO 2 CO 2 , H 2 H 2 , H 2 He, H 2 CH 4 , H 2 H, H He, CH 4 CH 4 , CH 4 CO 2 , CH 4 He, and CH 4 Ar collision pairs. The sources of data as well as their validation and selection are discussed. A wish list to eliminate remaining deficiencies or lack of data from the astrophysics perspective is also presented.