EOSAEL was a library of theoretical, semi-empirical, and empirical computer models that described various aspects of atmospheric effects in battlefield environments.
Weather in these environments impacts the functions of military technology, specifically electro-optical devices used for target acquisition.
A need for standard tools to facilitate system performance analyses and weather impact decision aids led to development of standard algorithms for modeling efforts, which became a part of EOSAEL.
[1] The EOSAEL modules provide transmittance and radiance calculations through gases, natural aerosols, battlefield aerosols, smoke, haze, fog, and clouds for bandpass and laser propagation.
[2] EOSAEL models provide the visible and near-infrared (0.2-2.0 ]dm), mid-infrared (3.0-5.0 urn), far-infrared (8.0-12.0 ym), and millimeter wave (10–350 GHz) regions of the spectrum, plus 53 laser lines.