Airborne and Ground-Based Measurements of Optical Atmospheric Properties in Southern Illinois,
Abstract
This report presents daytime atmospheric optical data collected chiefly with airborne instruments during a field expedition in southern Illinois in the summer of 1971. Results from four flights and selected ground-based data 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 paths of sight inclined at six zenith angles (95, 100, 105, 120, 150, and 180 degrees) from maximum altitudes of 3000 to 5100 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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1974
- Accession Number
- ADA013164
Entities
People
- Jacqueline I. Gordon
- Richard W. Johnson
- Seibert Q. Dentley
Organizations
- Scripps Institution of Oceanography