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Landforms of the conterminous United States: a digital shaded-relief portrayal

IMAP 2206

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Abstract

Our map was made by digital image-processing, a technical specialty related to the broader fields of computer graphics and machine vision (Dawson, 1987; Kennie and McLaren, 1988). The technology includes the many spacially based operations first brought together and developed systematically to manipulate Ranger, Mariner, Landsat, and other images that are reassembled from spacecraft telemetry in a raster or scan-line arrangement of square-grid elements (Nathan, 1966; Castleman, 1979; Sheldon, 1987). These computer procedures have been successfully transferred to landform analysis from remote-sensing applications by substituting terrain heights or sea-floor depths for the customary values of electromagnetic radiation obtained from satellites an stored in digital arrays of pixels (Batson and others, 1975).

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Landforms of the conterminous United States: a digital shaded-relief portrayal
Series title:
IMAP
Series number:
2206
Year Published:
1991
Language:
English
Publisher:
U.S. Geological Survey
Description:
Pamphlet: 16 p.; Sheet: 84.67 x 52.78 inches
Country:
United States
Scale:
500000