Clear and Cloud-free Lines-of-sight from Aircraft (Addendum)
| Author | : Eugene A. Bertoni |
| Publisher | : |
| Total Pages | : 346 |
| Release | : 1980 |
| Genre | : Aeronautics in meteorology |
| ISBN | : |
Photogrammetrically Determined Cloud Free Lines Of Sight At Columbia Missouri
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Clear and Cloud-free Lines-of-sight from Aircraft
| Author | : Eugene A. Bertoni |
| Publisher | : |
| Total Pages | : 26 |
| Release | : 1977 |
| Genre | : Aeronautics in meteorology |
| ISBN | : |
Haze-free and Cloud-free Lines-of-sight Through the Atmosphere
| Author | : Iver A. Lund |
| Publisher | : |
| Total Pages | : 28 |
| Release | : 1972 |
| Genre | : Haze |
| ISBN | : |
Clear and cloud-free line-of-sight probabilities have been derived from analysis of: (1) Whole-sky photographs, (2) visual sky cover observations, (3) jointly observed sky cover and sunshine, (4) satellite observations and (5) in-flight observations. The most accurate probabilities of cloud-free lines-of- sight through the entire atmosphere can be obtained from a model derived from several thousand whole-sky photographs and visual sky cover observations. The most accurate probabilities of both cloud-free and haze-free conditions through the entire atmosphere, or protions of the atmosphere, or portions of the atmosphere, can be obtained from the in-flight observations.
Handbook of Geophysics and Space Environments
| Author | : U.S. Air Force Geophysics Laboratory |
| Publisher | : |
| Total Pages | : 1066 |
| Release | : 1985 |
| Genre | : Geophysics |
| ISBN | : |
Photogrammetrically Determined Cloud-Free Lines-of-Sight at Columbia, Missouri
| Author | : Joseph Bernard Landwehr |
| Publisher | : |
| Total Pages | : 416 |
| Release | : 1971 |
| Genre | : Clouds |
| ISBN | : |
The probability of a cloud-free line-of-sight was determined at specified elevation angles and directions by using a camera with a 180 degree lens and infrared film to produce high-quality photograms of the sky. Three years of hourly data were used to analyze the probability with respect to the parameters of azimuth, elevation angle, season, time of day, sky cover, cloud type, and sunshine. A very unique probability surface as a function of sky cover and elevation angle of the line-of-sight, the two most important parameters, was constructed. The persistency of a cloud-free line-of-sight was determined by utilizing a summer season of photograms taken at five minute intervals. The persistency was analyzed for diurnal variations up to six hours of consecutive observations. (Author).
Scientific and Technical Aerospace Reports
| Author | : |
| Publisher | : |
| Total Pages | : 958 |
| Release | : 1972 |
| Genre | : Aeronautics |
| ISBN | : |
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Bibliography, with Abstracts, of AFCRL Publications from 1 July to 30 September 1971
| Author | : Air Force Cambridge Research Laboratories (U.S.) |
| Publisher | : |
| Total Pages | : 180 |
| Release | : 1971 |
| Genre | : Geophysics |
| ISBN | : |
This bibliography lists all AFCRL in-house reports, journal articles, and contractor reports issued from 1 July to 30 September 1971. Abstracts are included.
