Aerial Photo Single Frames
Entry ID: APSF

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Summary
Abstract: The Aerial Photography Single Frame Records collection is a large and diverse group of imagery acquired by Federal organizations from 1937 to the present. Over 6.4 million frames of photographic images are available for download as medium and high resolution digital products. The high resolution data provide access to photogrammetric quality scans of aerial photographs with sufficient resolution to reveal landscape detail and to facilitate the interpretability of landscape features. Coverage is predominantly over the United States and includes portions of Central America and Puerto Rico. Individual photographs vary in scale, size, film type, quality, and coverage.
Related URL
Description: Query and order satellite images, aerial photographs, and cartographic products through the U.S. Geological Survey. Log in as a guest or as a registered user. Registered users have access to more features than guests do. If you plan on using EarthExplorer frequently, you may wish to register. Please note that this site uses Session Cookies and Java applets.

EarthExplorer offers two digital download options for the Aerial Photography Single Frame Records collection. The files are stored in Tagged Image File Format (TIFF). Medium Resolution Digital Aerial Products were created with a digital single-lens reflex camera at a resolution of 63 microns, or 400 dots per inch (dpi). The file size for a nine inch photograph is approximately 15 megabytes (MB) for a black-and-white image and 45 MB for a color image. High Resolution Digital Aerial Products were created with a digital scanning back at a resolution of 25 microns, or 1,000 dpi. A geometric calibration is applied to each image to correct for distortions caused by the scanning process. The high resolution scans provide access to high precision data for photogrammetric applications. The file size for a nine inch photograph is approximately 110 MB for a black-and-white image and 330 MB for a color image. The USGS has a records schedule that transfers film sources to the National Archives and Records Administration (NARA) for permanent storage. Aerial photographs that meet the records schedule criteria become the responsibility of NARA and are retrievable for reproductions through NARA or its vendor companies. The USGS will maintain medium and high resolution data for film sources that are no longer stored at EROS.
Geographic Coverage
Spatial coordinates   
  N: 90.0   S: -90.0   E: 180.0   W: -180.0

Access Constraints None
Use Constraints There is no guarantee of warranty concerning the accuracy of these data. Users should be aware that temporal changes may have occurred since the data was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of their limitations. Acknowledgement of the originating agencies would be appreciated in products derived from these data. Any user who modifies the data set is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data set, nor to imply that changes made were approved or endorsed by the U.S. Geological Survey. Please refer to http://www.usgs.gov/privacy.html for the USGS disclaimer.
Ancillary Keywords
Data Set Progress
IN WORK
Data Center
Earth Resources Observation and Science Center, U.S. Geological Survey, U.S. Department of the Interior Supplemental Info
Data Center URL: http://eros.usgs.gov/

Data Center Personnel
Name: LONG TERM ARCHIVE
Phone: 605-594-6594
Fax: 605-594-6589
Email: lta at usgs.gov
Contact Address:
Information Systems Management
U.S. Geological Survey
EROS Center
47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Country: USA
Distribution
Distribution Media: Digital
Distribution Format: Download
Fees: None.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2013-06-12
Last DIF Revision Date: 2013-06-13
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