EXTINCTION COEFFICIENT MEASUREMENTS ON CLEAR ATMOSPHERES AND THIN CIRRUS CLOUDS
Abstract
An experimental investigation was carried out to determine possible differences in visible light extinction properties of continental and maritime air. Urban, desert and oceanic atmospheres were probed by means of a stable photodiode radiometer using direct sunlight as the source. No major differences were found for the three locations. Experimental coefficients generally lie slightly below model data, though significantly higher than would be expected from purely molecular scattering. Day-to-day variations of up to 30% were found. Results of similar extinction measurements on thin cirrus clouds show a slight increase in scattering coefficient in going from 4000 to 7000 A wavelength.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 27, 1968
- Accession Number
- AD0828644
Entities
People
- A. Guttman
Organizations
- General Electric