LINEPAK - ALGORITHMS FOR MODELING SPECTRAL TRANSMITTANCE AND RADIANCE

A set of subroutines has been written for use in developing spectral m odels, with emphasis on the Earth's atmosphere. Features include rapid calculation of absorption cross section, radiance and transmission sp ectra for multiple gases and multiple paths. The routines are designed to allow user control of model geometry, line shape functions, band m odels, atmospheric layering, and spectral resolution. Numerical techni ques and applications are described with examples that include a simul ated limb scan retrieval and comparison to other codes.