Calibration of Color Aerial Photography
Author | : Robert W. Dana |
Publisher | : |
Total Pages | : 40 |
Release | : 1971 |
Genre | : Aerial photography |
ISBN | : |
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Author | : Robert W. Dana |
Publisher | : |
Total Pages | : 40 |
Release | : 1971 |
Genre | : Aerial photography |
ISBN | : |
Author | : American Society of Photogrammetry |
Publisher | : |
Total Pages | : 608 |
Release | : 1968 |
Genre | : Photography |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 550 |
Release | : 1968 |
Genre | : |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 242 |
Release | : 1992 |
Genre | : Aerial photography in agriculture |
ISBN | : |
Author | : Richard S. Driscoll |
Publisher | : |
Total Pages | : 14 |
Release | : 1971 |
Genre | : Aerial photography in agriculture |
ISBN | : |
Shrubs such as antelope bitterbrush, big sagebrush, snowberry, and true mountainmohogany can be identified more consistently on large-scale (1:600-1:1,200) color infrared aerial photographs than on the same scale color aerial photographs. Indentification of relatively large forbs, including Fremont geranium and orange sneezeweed, is also easier on large scale color infrared. Neither film type appeared to give improved information regarding site delineation on smaller scale photographs. Other features of the range environment, including rodent disturbances, can best be identified on color infrared at photo scales up to 1:2,400. All of this depends on obtaining photogrpaphs at the right time of year in respect to phenology of the vegetation.
Author | : American Society of Photogrammetry |
Publisher | : |
Total Pages | : 550 |
Release | : 1968 |
Genre | : |
ISBN | : |
Author | : American Society of Photogrammetry |
Publisher | : |
Total Pages | : 576 |
Release | : 1968 |
Genre | : Photography |
ISBN | : |
Author | : James S. Aber |
Publisher | : Elsevier |
Total Pages | : 279 |
Release | : 2010-05-28 |
Genre | : Technology & Engineering |
ISBN | : 0080932835 |
As the need for geographical data rapidly expands in the 21st century, so too do applications of small-format aerial photography for a wide range of scientific, commercial and governmental purposes. Small-format Aerial Photography (SFAP) presents basic and advanced principles and techniques with an emphasis on digital cameras. Unmanned platforms are described in considerable detail, including kites, helium and hot-air blimps, model airplanes, and paragliders. Several case studies, primarily drawn from the geosciences, are presented to demonstrate how SFAP is actually used in various applications. Many of these integrate SFAP with ground-based investigations as well as conventional large-format aerial photography, satellite imagery, and other kinds of geographic information. Full-color photographs throughout Case studies from around the globe Techniques presented allow for image resolution impossible to match via traditional aerial photography or satellite datasets Glossary clarifies key terms
Author | : |
Publisher | : |
Total Pages | : 180 |
Release | : 1981 |
Genre | : Aerial photography in agriculture |
ISBN | : |
Author | : Vitor Martinho F. Pereira e Silva |
Publisher | : |
Total Pages | : 138 |
Release | : 1982 |
Genre | : Artificial satellites in geographical research |
ISBN | : |
Satellite infrared imagery off the California coast, near Pt. Sur, show thermal patterns associated with an upwelling center; the patterns frequently curl cyclonically when interacting with the warmer California Current. This pattern shows sharp thermal fronts, easily identified in satellite IR images, that are strongly correlated with nutrient fronts during the early stages of upwelling. With sea truth data available, it was feasible to calibrate satellite derived sea surface temperature, by applying radiative transfer theory, and to infer nutrient concentrations from their linear inverse correlations with temperature. Thus, it was possible to calibrate satellite thermal fields to produce maps of nutrient distributions. When the inferred relationships were applied over representative regions of the upwelling center, standard deviations of 0.5C, 1.7 microns and 0.1 microns were computed for temperature, nitrate and phosphate, respectively. (Author).