From Event: SPIE Optical Engineering + Applications, 2018
MODTRAN models the molecular absorption for the entire 0 to 50,000 cm-1 spectral range. Typically, radiative transfer models define distinct line-shape functions depending on the spectral region. This can produce spectral anomalies at the transitions. A 3-parameter GrossDoppler line-shape function is defined that provides a spectrally-universal model for computing molecular absorption.
Alexander Berk and Robert Sundberg, "MODTRAN and the GrossDoppler line-shape function," Proc. SPIE 10768, Imaging Spectrometry XXII: Applications, Sensors, and Processing, 107680I (Presented at SPIE Optical Engineering + Applications: August 20, 2018; Published: 18 September 2018); https://doi.org/10.1117/12.2320669.
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