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| Earth Resources Observation and Science (EROS) |
Single Frame Records
| Contents: | 
1940 aerial photograph |
1949 aerial photograph |
Product DescriptionSingle Frame Records consist of a diverse group of aerial photos within the USGS EROS historical film archives which were acquired from 1939 to present by a wide variety of sources: USGS, NASA, U.S. Air Force, Army Map Service, U.S. Navy, Alaska High-Altitude Aerial Photography (AHAP) and others. Single Frame Records vary in scale, size, quality, and coverage. The film is archived and geographically retrievable at the frame level. The records are matched up with medium resolution digitized files (400 dpi) and high resolution products are made on demand. Additional Information:
Back to TopDigital File SizesHigh resolution Scanned - *.TIFF images:
* Color/CIR film source is not available at a 7 micron spot size the file size is too large and there are no advantages below the 14 micron spot size. The above sizes may vary due to scanning more than just image data. With our policy to scan the surrounding metadata and the addition of the USGS logo the actual image size will generally be larger than the estimates above. Medium Resolution Digitized - *.TIFF images:The file sizes are approximately 15 megabytes b/w images and 40 megabytes color images. The files are stored in a TIFF format. The medium-resolution files are created at approximately 400 dpi. Back to TopDownloadHigh Resolution Scanned: $30.00 per frame
* Denotes the recommended micron size Medium Resolution Scanned: $3.00 per frame ** Medium Resolution AHAP images download at no cost. Back to TopSearch & OrderHigh Resolution Scanned:Single Frame Records can be searched and ordered on EarthExplorer. The collection is located under Aerial Photography Dataset. Medium Resolution Digitized:Single Frame Records can be searched and ordered on EarthExplorer. The collection is located under Aerial Photography Dataset. Alaska High Altitude Aerial Photography (AHAP)The Alaska High Altitude Aerial Photography (AHAP) program was a $2.7 million investment made by State and Federal Government to create consistent aerial coverage over Alaska. The program began in 1978 and involved flying two cameras with different focal lengths and film types (Color-Infrared = ~1:65,000; Black & White = ~1:130,000). The flight years ranged from 1978 to 1986 with 90 percent of the state being flown at 10 percent or less cloud cover (weather hindered acquisitions of the Alaska Peninsula and Aleutian Islands). NASA Johnson Space Center (JSC) and NASA Ames Research Center aircraft were used to acquire the photography. The photos were taken via east-to-west and west-to-east flight lines. The USGS participated as a funding agent and provided in-kind services for the life of the program. The USGS AHAP collection is a duplicate set. The original rolls are archived at the USDA Aerial Photography Field Office (APFO) in Salt Lake City, UT. All of the AHAP photography was *digitized in 2007 as a USGS contribution to the International Polar Year. (*digitized = medium resolution products = ~400 dpi) The AHAP imagery is searchable on EarthExplorer within the Aerial Photography dataset. Select the Single Frame Dataset. The AHAP program set a standard for cooperative projects that greatly benefited the NHAP and NAPP programs. Other sources for searching and orderingBusinesses that can provide printed images from USGS digital data. Back to Top |
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