| Abstract: | This document provides a general description of the procedures used to develop the data sets included on this compact disc. This compact disc contains watershed boundaries for Oklahoma, a digital elevation model, and other data sets derived from the digital elevation model. The digital elevation model was produced using the ANUDEM software package, written by Michael Hutchinson and licensed from the Centre for Resource and Environmental Studies at The Australian National University. Elevation data (hypsography) and streams (hydrography) from digital versions of the U.S. Geological Survey 1:100,000-scale topographic maps were used by the ANUDEM package to produce a hydrologically conditioned digital elevation model with a 60-meter cell size. This digital elevation model is well suited for drainage-basin delineation using automated techniques.
Additional data sets include flow-direction, flow-accumulation, and shaded-relief grids, all derived from the digital elevation model, and the hydrography data set used in producing the digital elevation model. The watershed boundaries derived from the digital elevation model have been edited to be consistent with contours and streams from the U.S. Geological Survey 1:100,000-scale topographic maps. The watershed data set includes boundaries for 11-digit Hydrologic Unit Codes (watersheds) within Oklahoma, and 8-digit Hydrologic Unit Codes (cataloging units) outside Oklahoma. Cataloging-unit boundaries based on 1:250,000-scale maps outside Oklahoma for the Arkansas, Red, and White River basins are included. The other data sets cover Oklahoma, and where available, portions of 1:100,000-scale quadrangles adjoining Oklahoma. |
| Genre: | USGS Numbered Series |
| ProdID: | 22685 |
| Citation Author: | Cederstrand, J. R.; Rea, A. H. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | 1 computer laser optical disk ;4 3/4 in. |
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| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 95-727 |
| Citation Search Results Text: | Watershed boundaries and digital elevation model of Oklahoma derived from 1:100,000-scale digital topographic maps; 1995; OFR; 95-727; Cederstrand, J. R.; Rea, A. H. |
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| Citation Year: | 1995 |
| Type: | citation/reference |
| Text: | Watershed boundaries and digital elevation model of Oklahoma derived from 1:100,000-scale digital topographic maps; 1995; OFR; 95-727; Cederstrand, J. R.; Rea, A. H. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| Date Other: | Thu, 1 Aug 1996 00:00 -0500 |
| Publisher: | U.S. Geological Survey, |
