Most images on this CD-ROM are LANDSAT browse images, used to determine image quality and cloud cover. These images are subsampled at a ratio 16 to 1 and have an effective resolution of 480 meters (approximately 3/10 of a mile per pixel. JPEG image compression may degradesome images to less than the subsampled resolution. Full resolution images are 512X512 sections of Landsat scenes, with a ground resolution of 30 meters. A high quality JPEG image compression routine has been used on these images to minimize image quality degradation.
Creator
Intermountain Digital Mapping
Date of creation
1997
Temporal extent
1997
Publisher
Intermountain Digital Mapping
Scale
various
Data type
Copyright holder
Intermountain Digital Mapping
Require acknowledgement to use
None
Cost for use
None
Medium
CD-ROM # 110
Subjects
Geography
Open data
Restrictions
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