The ‘Soil Survey of Santa Cruz and Parts of Cochise and Pima Counties, Arizona,' a product of the USDA’s Soil Conservation Service and the Forest Service in cooperation with the Arizona Agricultural Experiment Station, released in 1979, was created according to the site conditions in 1971, when soil scientists identified soils types on aerial photographs. The scale at which these maps were published is 1:20,000.
These soil maps were automated for incorporation into the hydrologic modeling within a GIS. The aerial photos onto which the soils units were drawn had not been orthoganalized, and contained distortion. A total of 15 maps composed the study area. These maps were scanned into TIFF format using an 8-bit black and white drum scanner at 100 dpi. The images were imported into ERDAS IMAGINE and the white borders were removed through subset decollaring processes. Five CD-ROM’s containing Digital Orthophoto Quarter Quads (DOQQ’s) were used to register and rectify the scanned soils maps. Polygonal data was then attributed according to the datasets.
|Publication Subtype||USGS Numbered Series|
|Title||Digital soils survey map of the Patagonia Mountains, Arizona|
|Series title||Open-File Report|
|Publisher||U.S. Geological Survey|
|Publisher location||Reston, VA|
|Contributing office(s)||Western Geographic Science Center|
|Description||Report: 24 p.; Readme; Metadata; Dataset; Legend; Map: JPG format|
|Other Geospatial||Patagonia Mountains|
|Datum||North American Datum of 1983|
|Projection||Universal Transverse Mercator|
|Additional Online Files (Y/N)||Y|
|Google Analytic Metrics||Metrics page|