Airborne Measurements of Optical Atmospheric Properties in Southern Illinois,
Abstract
The report presents daytime atmospheric optical data collected chiefly with airborne instruments during a field expedition to southern Illinois in the summer of 1971. Results from five flights are presented. The data include the natural irradiance upon horizontal plane surfaces, scalar irradiances, total volume scattering coefficients, atmospheric beam transmittances, path radiances, directional path reflectances, and directional terrain reflectances. Data for sunlight conditions were derived for downward-looking pahts of sight inclined at six zenith angles (95, 100, 105,120, 150, and 180 degrees) from altitudes of 3000 meters above ground level and lower in three spectral regions, as follows: two narrow band optical filters with mean wavelengths of 478 and 664 nanometers; and one broad band sensitivity representing the photopic response with a mean wavelength of 557 nanometers. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1973
- Accession Number
- AD0774597
Entities
People
- Jacqueline I. Gordon
- Richard W. Johnson
- Seibert Qu. Duntley
Organizations
- Scripps Institution of Oceanography