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Aerial survey is a method of collecting geomatics or other imagery data using airplanes, helicopters, UAVs, balloons, or other aerial methods. Typical data collected includes aerial photography , Lidar , remote sensing (using various visible and invisible bands of the electromagnetic spectrum , such as infrared , gamma , or ultraviolet ) and ...
The sensitivity usually depends on the optical system, detectors and filters used. For each photometric system a set of primary standard stars is provided. A commonly adopted standardized photometric system is the Johnson-Morgan or UBV photometric system (1953). At present, there are more than 200 photometric systems. [citation needed]
1871 Atlas of Massachusetts. by Wall & Gray.Map of Massachusetts. Map of Middlesex County. History of Middlesex County, Massachusetts, Volume 1 (A–H), Volume 2 (L–W) compiled by Samuel Adams Drake, published 1879 and 1880. 572 and 505 pages. Sudbury article by Rev. George A. Oviatt in volume 2 pages 357–381.
1/1,000 sec (0.001) F-number: f/4.5: ISO speed rating: 100: Date and time of data generation: 16:37, 9 November 2013: Lens focal length: 6.176 mm: Orientation: Normal: Horizontal resolution: 180 dpi: Vertical resolution: 180 dpi: File change date and time: 16:37, 9 November 2013: Y and C positioning: Co-sited: Exif version: 2.3: Date and time ...
[4] [5] Clean water was directed through alternate pipelines to bypass the break, but to provide all the water needed, the Massachusetts Water Resources Authority supplemented the water supply by tapping the Chestnut Hill Reservoir; water from the Sudbury Reservoir and Foss Reservoir was sent through the Sudbury Aqueduct to Chestnut Hill to ...
The Sudbury Center Historic District is a historic district on Concord and Old Sudbury Roads in Sudbury, Massachusetts. It was listed on the National Register of Historic Places in 1976. [1] [failed verification] In 1976, it included 80 buildings over 193.6 acres (0.783 km 2). [2] [failed verification]
The unmanned aerial photogrammetric survey is the use of unmanned aerial vehicles (UAVs) to take photos for use in photogrammetry, the science of making measurements from photographs. Instruments manufactured for UAVs could be mounted on unmanned flying platforms of various sizes and types, such as octocopters .