Alluvial Fan Flooding (1996) / Chapter Skim
Currently Skimming:
B Sources of Data
B Sources of Data
Pages 153-163
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Appendix B Sources of Data
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Each park has its own focus recreation, historic, ecosystems, general information, or interpretation. Many park maps have shaded relief art, an artist's rendering of topographic features derived from USGS contour lines on the base map.
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Because they show a wealth of pla~imetric details and land use and land cover information that is not symbolized on conventional line rnaps, they make excellent supplements to the published maps. Pilot projects have demonstrated that digital scanning of aerial photos and rectification of scanned imagery to horizontal and vertical ground control can produce orthophoto digital data bases from which orthophotoquads at 1:12 000 and 1:24,000 are generated.
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(303) 202-4700 Quaternary Geologic Atlas of the United States Earth Science Information Center U.S.
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(703) 487-4763 Bulletins, Professional Papers, Water Supply Papers and Other Book Series Earth Science Information Center U.S.
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for the 50 states and several territories. These sources are available at Earth Science Information Center offices, in USGS libraries, and may be available at other earth science libraries, such as those of universities.
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(801) 625-5306 Extent of Data/Information Content ASCS Aerial Photography Field Office in Salt Lake City.
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The Soil Interpretations Record data base includes over 25 soil, physical, and chemical properties for approximately 18,000 soil series recognized in tl~e United States. Infonnation on soil survey reports that can be queried from the data base includes available water capacity, soil reaction, salinity, flooding, water table, bedrock, and interpretation for septic tank limitations, engineering, cropland, woodland, and recreation development.
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These products map delineating areas e`;pcctcd to be inundated by the 1 percent chance per year flood events base flood elevation, floodway, and other flood risk data. Black-and-`vhito panchromatic, color and colorinfrared aerial photographs of areas within the Tennessee Valley Region at various dates from 1933 to the present tickle.
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17. Long-time rcsidcnts A PPENDIX B Extent of DatalInformation Content The NARS archives historical federal geographic data products including a variety of photo and map data and, in particular, aerial photographs flown by the government previous to 1942.
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The specific location and availability will vary, but would include libraries of colleges or departments of agriculture, water resources, geography, etc.
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