Nebraska FSA Rectified Digital Imagery

OTHER RECTIFIED DIGITAL IMAGERY
2001 FSA Imagery

Source:  Farm Service Agency, USDA
         7131 'A' Street,
         Lincoln, NE 68510
Processed by:  Nebraska Department of Natural Resources
               Data Bank     (JH)

2001 Rectified Digital Imagery: Under a pilot project the U.S. Farm Service Agency developed color digital imagery based on July -August 2001 aerial photography for 25 counties in Southeast Nebraska. These images have 2-meter resolution and were rectified using existing Digital Orthophoto Quadrangles (DOQ), developed through a joint effort between USGS and DNR, as a control source. For additional information, contact U.S. Farm Service Agency at 402-437-5581.

2001 Compressed Rectified Digital Imagery: The Nebraska Department of Natural Resources (DNR) as part of its Data Bank activities, has compressed the rectified digital imagery obtained from FSA using a JPEG format.

Since JPEG is a "lossy" image compression format, a compressed digital image will have slightly less color separation or clarity than a digital image that wasn't compressed. For additional information, contact the Nebraska Department of Natural Resources (DNR) at 402-471-3964.

Availability of Compressed Rectified FSA Imagery -2001

Rectified FSA Imagery Metadata
Status Map of available compressed imagery
Quadrangle Identification Map (28" X 45")
UTM Projections - FTP site.
Projections are referenced to the North American Datum of 1983 (NAD83) with coordinates in meters.
The FTP site has directories in latitude/longitude.

Each FSA Compressed Digital Image (3.5 minute quarter-quadrangle, 2-meter ground resolution, 1:12,000 scale) requires about 2MB to 3MB of storage space. The transmission of coverage may take 25 minutes or more at 56KB and low-speed Internet links. The transmission of data at lower speeds is not recommended.

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