Attenuation of Visible Energy in a Polluted Atmosphere
Abstract
Atmospheric attenuation at visible wavelengths in polluted atmospheres cannot necessarily be predicted accurately from visibility statistics. This report discusses human vision under different lighting conditions. The eye has much less than its maximum sensitivity where molecular absorption by pollutants is strongest. However, it was concluded that molecular absorption at visible wavelengths is rarely large enough to be a serious problem. Scattering is the primary cause of low visibilities in the atmosphere. Scattering is also the main cause of really large extinction coefficients throughout the visible portion of the spectrum.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1987
- Accession Number
- ADA203704
Entities
People
- Dorathy A. Stewart
Organizations
- United States Army Aviation and Missile Command