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It contains numerous references to Area 51 and Groom Lake, along with a map of the area. [9] Media reports stated that releasing the CIA history was the first governmental acknowledgement of Area 51's existence; [53] [54] [15] rather, it was the first official acknowledgement of specific activity at the site. [50]
Groom Lake is a dry lake, [1] also described as a salt flat, [2] in Nevada.It is used for runways of the Nellis Bombing Range Test Site airport (KXTA). [3] Part of the Area 51 USAF installation, it lies at an elevation of 4,409 ft (1,344 m) [4] and is approximately 3.7 miles (6.0 km) from north to south and 3 miles (4.8 km) from east to west at its widest point, and is approximately 11.3 miles ...
For a location which has an elevation lower than that of the datum plane, the original position will move closer to the central point of the image. [4] Figure 11. This diagram shows an example of displacement. A is the location that is lower than the datum plane. It moves inward to the central point. B is the location that is higher than the ...
Aerial photograph interpretation is a method of extrapolating geological details of the ground surface from aerial images. [1] It allows geologists to analyze the distinguishing geological features and structures , plant cover , past history of the site, soil properties, and topography of the study area.
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1. Accurately solved vertical and oblique single images of the area of interest. The solution for each image is the result of the photogrammetric bundle block adjustment with self-calibration. 2. SLFs (Super Large Frames), used for stereo photogrammetric mapping. 3. DSM (Digital Surface Model) 4. DTM (Digital Terrain Model) 5.