MODTRAN and the GrossDoppler Line-shape Function

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.