Simulations of Titan Observations in the 1.58 Micron Transparency Window with High-Resolution, Low Temperature CRDS Spectra

Applications of a New Methane Linelist to the Modeling of Titan's Spectrum in the 1.58 Micron Window

International audience

First Applications of New Methane Linelists to the Modelling of Titan's Spectrum in the 1.58 and 1.28 Micron Windows

Application of new methane linelists to Cassini and Earth-based data of Titan

International audience

Applications of a new set of methane line parameters to the modeling of Titan's spectrum in the 1.58 μm window

International audience; In this paper we apply a recently released set of methane line parameters (Wang et al., 2011) to the modeling of Titan spectra in the 1.58 mu m window at both low and high spectral resolution. We first compare the methane absorption based on this new set of methane data to that calculated from the methane absorption coefficients derived in situ from DISR/Huygens (Tomasko et al., 2008a; Karkoschka and Tomasko, 2010) and from the band models of Irwin et al. (2006) and Karkoschka and Tomasko (2010). The Irwin et al. (2006) band model clearly underestimates the absorption in the window at temperature-pressure conditions representative of Titan's troposphere, while the Ka…