Simulated and Observed Sunny Line-of-Sight Probabilities at Palehua, Hawaii
Abstract
This report documents, a study of the differences in the climatological probabilities of a cloud-free line-of-sight (CFLOS) at the Palehua, Hawaii, Solar Optical Observatory and the Barbers Point Naval Air Station, about 5 miles southeast of Palehua. The study shows that sunny line-of- sight probabilities (SLOS--cloud-free line-of-sight from an observer to the Sun) are typically about 10 percent lower at Palehua (elevation about 1,700 feet) than at Barbers Point (34 feet). The study compared 17 years of actual weather observations from Barbers Point and 5 years Palehua solar optical site status reports (Surface weather observations are not available from Palehua). The results of this study suggest that the Stanford Research Institute technique for relating fractional sky-cover and viewing angle to CFLOS probability (described by Malick, et al., 1979) is valid for use in Hawaii.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1991
- Accession Number
- ADA247446
Entities
People
- Anthony J. Warren
Organizations
- Air Force Technical Applications Center