The companion raster dataset GISDB.IL_HISTORICAL_AERIAL_UTM16_RAS contains additional coverage of the Chicago and St. Louis metropolitan areas within Illinois and UTM zone 16.
On May 12, 1933, President Franklin Roosevelt signed into law the Agricultural Adjustment Act, which was originally administered by the USDA-AAA. Since the mid-1930s, the USDA-AAA, now the USDA Farm Services Agency (USDA-FSA), periodically acquired nationwide aerial photographs by county. These aerial photographs were originally used by the USDA-AAA to assess the nation's agricultural lands and served as the basis for the national soil surveys.
Statewide coverage of USDA-AAA aerial photographs was first achieved for Illinois from 1936 through 1941. Approximately 27,000 individual frames were acquired for complete coverage of the state.
Because of deterioration and stability issues, the original 7-inch by 9-inch and 9-inch by 9-inch nitrocellulose (silver nitrate) negatives were destroyed at the National Archives in the 1980s. The United States Navy and the National Archives made small-format copies of the negatives prior to the destruction of the original negatives. These copies, and the photographic prints made from them, are of extremely poor quality. Therefore, photographic paper prints made from the original large-format negatives are the best remaining representation of this aerial photography collection.
Nearly complete photographic paper print collections for Illinois exist at the Illinois Department of Natural Resources Office of Water Resources (IDNR OWR) and the University of Illinois at Urbana Champaign (UIUC) Map and Geography Library. Smaller regional print collections are also located at many Illinois libraries and governmental agencies. None of the collections are complete, however, and only limited preservation efforts are in place to ensure the permanence of these print collections.
Illinois State Geological Survey, 20060401, Mosaic of Historical Aerial Photography of Greater St. Louis Area, 1936-1941: ISGS GIS Database GISDB.IL_HISTORICAL_AERIAL_UTM15_RAS, Illinois State Geological Survey, Champaign, Illinois.
This is a Raster data set. It contains the following raster data types:
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.702563
Ordinates (y-coordinates) are specified to the nearest 0.702603
Planar coordinates are specified in meters
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257222.
Funding source: Illinois Department of Transportation (IDOT) Funding source: Illinois Department of Natural Resources (IDNR) Funding source: IDNR Office of Water Resources (IDNR OWR) Funding source: United States Army Corps of Engineers (USACE) Funding source: Illinois State Geological Survey (ISGS)
United States Department of Agriculture, Agricultural Adjustment Administration (USDA-AAA) aerial photographs are widely recognized as a unique and detailed record of the cultural and physical landscapes of Illinois. USDA-AAA photography is intensively used for diverse purposes by government agencies, surveyors, planners, consulting scientists, engineers and other individuals. These purposes include determination of past land uses, restoration of natural areas, assessing historical changes in stream dynamics, and a variety of other applications.
Illinois State Geological Survey, Unpublished Material, Illinois Historical Aerial Photographs: 1936-1941: Illinois State Geological Survey, Champaign, Illinois.
Person who carried out this activity:
Illinois State Geological Survey, 200306, Mosaic of Illinois NAPP3 Digital Orthophoto Quadrangles in UTM Zone 15, NAD83: ISGS GIS Database IL_DOQ_NAPP3_MOSAIC_UTM15_RAS, Illinois State Geological Survey, Champaign, IL.
Donald Luman, Lisa Smith, Chris Goldsmith, 2003, Illinois Statewide 30-Meter Digital Elevation Model: ISGS GIS Database IL_DEM_30M_RAS, Illinois State Geological Survey, Champaign, IL.
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DOQs (1998/99) used for orthorectification met USGS locational accuracy standards. Additional information on this testing procedure can be found in U.S. Department of the Interior, U.S. Geological Survey, 1993, Technical Instructions, ORACC Users Manual (draft): Reston, VA. Field investigations to validate DOQ positional accuracy reliability are periodically conducted by the USGS, National Mapping Division, Geometronics Standards Section. DOQ's produced by cooperators and contractors use similarly approved RMSE test procedures.
The orthorectification process for the historical photos had RMSEs less than 7 meters.
These historical aerial photographs were orthorectified using the Illinois DEM for vertical reference and should reflect the vertical positional accuracy of said DEM (stated as half the contour interval of the original USGS topogrphic survey. A typical interval for Illinois is ten feet although other ranges may exist.)
Includes full coverage of Jersey and Monroe counties. Includes partial coverage of Madison and St. Clair counties.
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- ISGS information must be obtained directly from the ISGS or from an authorized distributor. Be aware that ISGS information obtained from an unauthorized third party may have been altered subsequent to original distribution, or may no longer be current.
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Individuals or entities may make fair use of copyrighted ISGS material, such as reproducing a single figure or table, or using a brief text quotation, without obtaining formal permission, but in all cases the Illinois State Geological Survey must be credited as the source of the material. To reproduce ISGS information beyond the fair use standard, permission must be obtained from the ISGS Information Office, 615 East Peabody Drive, Champaign, Illinois 61820, 217-333-4747, email@example.com. License fees and a license agreement may be required, depending on the proposed usage.
Map information is to be used at a scientifically and cartographically appropriate scale, that is, at a scale no greater than indicated on the map or as described in the documentation of the map or map data. Map information is not appropriate for, and is not to be used as, a geodetic, legal, or engineering base. Map information has no legal basis in the definition of boundaries or property lines and is not intended as a substitute for surveyed locations such as can be determined by a registered Public Land Surveyor.
The data do not replace the need for detailed site-specific studies.
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The data are intended for use with GIS software. The ISGS uses ESRI ArcGIS software, however, ESRI formats can be imported into many different GIS software packages. It is expected that customers who obtain these data have the technical expertise to use GIS software. The ISGS does not provide software support of any kind.
Illinois Natural Resources Geospatial Data ClearinghouseGenerated by mp version 2.8.25 on Wed Apr 08 14:16:22 2009