HAIRM-87. A High Altitude Infrared Radiance Model

HAIRM, the AFGL/Visidyne High Altitude Infrared Radiance Model, calculates atmospheric radiance over the spectral region from 250 to 6000/cm (1. 67-40.0 micrometers) and over altitudes from 60 to 250 km. It calculates NLTE (non-local thermodynamic equilibrium) radiation from five atmospheric molecules, CO2, H20, NO, O3 and CO. The older version, which evolved over many years of analyses and modeling of AFGL field data, consists of eight separate programs or modules which are run individually. This version of the code, HAIRM-87, has linked these programs together under a single MAIN routine and added an interactive input module that prompts the user for the various code inputs. Additionally some proprietary integrating subroutines have been replaced, so that the code can be released to the DoD community (Upon request to AFGL/LSP). HAIRM-87 is identical in model content to the earlier version. Keywords: Ozone, Carbon dioxide, Carbon monoxide, Water vapor, Nitrogen oxides, Infrared radiation, Atmospheric transmittance, Mesosphere, Thermosphere.