<?xml version="1.0" encoding="UTF-8"?>
<metadata>
<idinfo>
<citation>
<citeinfo>
<origin>Illinois State Geological Survey</origin>
<pubdate>20060401</pubdate>
<title>Mosaic of Historical Aerial Photography of Greater St. Louis Area, 1936-1941</title>
<edition>20080305</edition>
<geoform>remote-sensing image</geoform>
<serinfo>
<sername>ISGS GIS Database</sername>
<issue>GISDB.IL_HISTORICAL_AERIAL_UTM15_RAS</issue>
</serinfo>
<pubinfo>
<pubplace>Champaign, Illinois</pubplace>
<publish>Illinois State Geological Survey</publish>
</pubinfo>
<onlink>http://www.isgs.illinois.edu/</onlink>
<onlink>http://illinois.edu</onlink>
</citeinfo>
</citation>
<descript>
<abstract>
This data set is an SDE raster mosaic of historical black and white aerial photographs that occur in the greater St. Louis metropolitan area of Illinois, acquired during 1936 to 1941. Coverage is limited to areas that fall within UTM zone 15. The original paper prints have been scanned at a resolution of 750 DPI on a  Crosfield 646 IE drum scanner and stored as TIFF format images.  The data are stored in the &quot;orthorectified&quot; spatial reference of UTM Zone 15, NAD83 with a 1-meter ground resolution.  The original photographic paper prints are at a scale 1:20,000.  The images were then orthorectified and cropped using Leica Photogametry Suite Version 8.7. Settings used include; frame camera with fiducials, 4191 meter flight height, 209.55 focal length, Horizontal reference (UTM zone 15 NAD 1983) in meters, and vertical reference in feet.  Illinois NAPP III DOQs (1998/99) and Illinois DEM data (Luman, et al, 2004, UTM zone 16 NAD 1983 reprojected to UTM zone 15 NAD 1983) were used for the horizontal and vertical references for the orthorectification process.

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.
</abstract>
<purpose>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.</purpose>
<supplinf>
Background of original photography:

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&apos;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.
</supplinf>
</descript>
<timeperd>
<timeinfo>
<rngdates>
<begdate>1936</begdate>
<enddate>1941</enddate>
</rngdates>
</timeinfo>
<current>The origional black and white aerial photographs were taken from 1936 to 1941. Orthorectification occurred in 2007.</current>
</timeperd>
<status>
<progress>In work</progress>
<update>As needed</update>
</status>
<spdom>
<bounding>
<westbc Sync="TRUE">-90.671216</westbc>
<eastbc Sync="TRUE">-89.825799</eastbc>
<northbc Sync="TRUE">39.281486</northbc>
<southbc Sync="TRUE">38.067326</southbc>
</bounding>
</spdom>
<keywords>
<theme>
<themekt>none</themekt>
<themekey>aerial</themekey>
<themekey>photography</themekey>
<themekey>historical</themekey>
<themekey>imagery</themekey>
<themekey>black and white</themekey>
<themekey>scanned</themekey>
<themekey>ArcSDE</themekey>
<themekey>TIFF</themekey>
<themekey>dpi</themekey>
<themekey>grayscale</themekey>
<themekey>United States Department of Agriculture</themekey>
<themekey>Agricultural Adjustment Administration</themekey>
<themekey>USDA</themekey>
<themekey>AAA</themekey>
</theme>
<place>
<placekt>none</placekt>
<placekey>Illinois</placekey>
<placekey>Metro Area</placekey>
<placekey>St. Louis</placekey>
</place>
<temporal>
<tempkt>none</tempkt>
<tempkey>WWII</tempkey>
<tempkey>World War II</tempkey>
<tempkey>1936 to 1941</tempkey>
<tempkey>pre-WWII</tempkey>
<tempkey>pre-World War II</tempkey>
<tempkey>1936</tempkey>
<tempkey>1937</tempkey>
<tempkey>1938</tempkey>
<tempkey>1939</tempkey>
<tempkey>1940</tempkey>
<tempkey>1941</tempkey>
<tempkey>1930s</tempkey>
<tempkey>1940s</tempkey>
</temporal>
</keywords>
<accconst>
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.

Any access to these data, Web sites, computer systems, electronic services, and electronic networks is governed by University and campus policies, in particular, but not limited to, the Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign, the ISGS Terms of Use document available at the ISGS Web site, and the University of Illinois Web Privacy Notice.

Links to these are provided in the Cross References section.
</accconst>
<useconst>
ISGS information is the property of and copyrighted by the Board of Trustees of the University of Illinois with all rights reserved.  University copyright policy is stated in the General Rules Concerning University Organization and Procedure, Article III, Section 4.  A link is provided in the Cross References section.

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, isgs@isgs.illinois.edu. License fees and a license agreement may be required, depending on the proposed usage.

Any use of these data is governed by University and campus policies, in particular, but not limited to, the Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign, the ISGS Terms of Use document available at the ISGS Web site, and the University of Illinois Web Privacy Notice.  Links to these are provided in the Cross References section.

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.
</useconst>
<ptcontac>
<cntinfo>
<cntinst>Please refer to the Distribution Information section.</cntinst>
</cntinfo>
</ptcontac>
<datacred>
&gt; Funding source:   Illinois Department of Transportation (IDOT)
&gt; Funding source:   Illinois Department of Natural Resources (IDNR)
&gt; Funding source:   IDNR Office of Water Resources (IDNR OWR)
&gt; Funding source:   United States Army Corps of Engineers (USACE)
&gt; Funding source:   Illinois State Geological Survey (ISGS)
</datacred>
<native>ArcSDE 9.1 on Oracle 10g</native>
<crossref>
<citeinfo>
<origin>Illinois State Geological Survey</origin>
<pubdate>200306</pubdate>
<title>Mosaic of Illinois NAPP3 Digital Orthophoto Quadrangles in UTM Zone 15, NAD83</title>
<edition>1.0</edition>
<geoform>remote-sensing image</geoform>
<serinfo>
<sername>ISGS GIS Database</sername>
<issue>IL_DOQ_NAPP3_MOSAIC_UTM15_RAS</issue>
</serinfo>
<pubinfo>
<pubplace>Champaign, IL</pubplace>
<publish>Illinois State Geological Survey</publish>
</pubinfo>
<othercit>In addition to being used to assist in spatial registration, the metadata of this dataset provides the general methodology used to create the SDE mosaic of historical photos.</othercit>
</citeinfo>
</crossref>
<crossref>
<citeinfo>
<origin>Donald Luman, Lisa Smith, Chris Goldsmith</origin>
<pubdate>2003</pubdate>
<title>Illinois Statewide 30-Meter Digital Elevation Model</title>
<edition>1.0</edition>
<geoform>remote-sensing image</geoform>
<serinfo>
<sername>ISGS GIS Database</sername>
<issue>IL_DEM_30M_RAS</issue>
</serinfo>
<pubinfo>
<pubplace>Champaign, IL</pubplace>
<publish>Illinois State Geological Survey</publish>
</pubinfo>
<othercit>originally in UTM 16 NAD83, reprojected to UTM 15, NAD83</othercit>
</citeinfo>
</crossref>
<crossref>
<citeinfo>
<title>ISGS Terms of Use</title>
<onlink>http://www.isgs.illinois.edu</onlink>
</citeinfo>
</crossref>
<crossref>
<citeinfo>
<title>University of Illinois Web Privacy Notice</title>
<onlink>http://www.vpaa.uillinois.edu/policies/web_privacy.cfm</onlink>
</citeinfo>
</crossref>
<crossref>
<citeinfo>
<title>University Copyright Policy (stated in the General Rules Concerning University Organization and Procedure, Article III, Section 4)</title>
<onlink>http://www.uillinois.edu/trustees/rules.cfm#sec34</onlink>
</citeinfo>
</crossref>
<crossref>
<citeinfo>
<title>Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign</title>
<onlink>http://www.fs.uiuc.edu/cam/CAM/viii/viii-1.1.html</onlink>
</citeinfo>
</crossref>
</idinfo>
<dataqual>
<logic>No report.</logic>
<complete>Includes full coverage of Jersey and Monroe counties.  Includes partial coverage of Madison and St. Clair counties.</complete>
<posacc>
<horizpa>
<horizpar>
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&apos;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.
</horizpar>
</horizpa>
<vertacc>
<vertaccr>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.)</vertaccr>
</vertacc>
</posacc>
<lineage>
<srcinfo>
<srccite>
<citeinfo>
<origin>Illinois State Geological Survey</origin>
<pubdate>Unpublished Material</pubdate>
<title>Illinois Historical Aerial Photographs: 1936-1941</title>
<geoform>remote-sensing image</geoform>
<pubinfo>
<pubplace>Champaign, Illinois</pubplace>
<publish>Illinois State Geological Survey</publish>
</pubinfo>
<onlink>http://www.isgs.uiuc.edu/nsdihome/webdocs/ilhap/</onlink>
</citeinfo>
</srccite>
<srcscale>20000</srcscale>
<typesrc>paper</typesrc>
<srctime>
<timeinfo>
<rngdates>
<begdate>1936</begdate>
<enddate>1941</enddate>
</rngdates>
</timeinfo>
</srctime>
<srccontr>Unregistered, unrectified digital scans of original photography.</srccontr>
</srcinfo>
<procstep>
<procdesc>The original paper prints have been scanned at a resolution of 750 DPI on a  Crosfield 646 IE drum scanner and stored as TIFF format images.  The data are stored in the &quot;orthorectified&quot; spatial reference of UTM Zone 15, NAD83 with a 1-meter ground resolution.  The original photographic paper prints are at a scale 1:20,000.  The images were then orthorectified and cropped using Leica Photogametry Suite Version 8.7. Settings used include; frame camera with fiducials, 4191 meter flight height, 209.55 focal length, Horizontal reference (UTM zone 15 NAD 1983) in meters, and vertical reference in feet.  The 1998/99 Illinois DOQs and the Illinois DEM (UTM zone 16 NAD 1983 reprojected to UTM zone 15 NAD 1983) were used for the horizontal and vertical references for the orthorectification process.  For more detailed information concerning the orthorectification process, see contact.</procdesc>
<procdate>2007</procdate>
<proccont>
<cntinfo>
<cntperp></cntperp>
</cntinfo>
</proccont>
</procstep>
</lineage>
</dataqual>
<spdoinfo>
<direct Sync="TRUE">Raster</direct>
<rastinfo>
<rasttype Sync="TRUE">Pixel</rasttype>
<rowcount Sync="TRUE">189010</rowcount>
<colcount Sync="TRUE">99114</colcount>
<vrtcount Sync="TRUE">1</vrtcount>
</rastinfo>
</spdoinfo>
<spref>
<horizsys>
<planar>
<gridsys>
<gridsysn Sync="TRUE">Universal Transverse Mercator</gridsysn>
<utm>
<utmzone Sync="TRUE">15</utmzone>
<transmer>
<sfctrmer Sync="TRUE">0.999600</sfctrmer>
<longcm Sync="TRUE">-93.000000</longcm>
<latprjo Sync="TRUE">0.000000</latprjo>
<feast Sync="TRUE">500000.000000</feast>
<fnorth Sync="TRUE">0.000000</fnorth>
</transmer>
</utm>
</gridsys>
<planci>
<plance>coordinate pair</plance>
<coordrep>
<absres Sync="TRUE">0.702563</absres>
<ordres Sync="TRUE">0.702603</ordres>
</coordrep>
<plandu Sync="TRUE">meters</plandu>
</planci>
</planar>
<geodetic>
<horizdn Sync="TRUE">North American Datum of 1983</horizdn>
<ellips Sync="TRUE">Geodetic Reference System 80</ellips>
<semiaxis Sync="TRUE">6378137.000000</semiaxis>
<denflat Sync="TRUE">298.257222</denflat>
</geodetic>
</horizsys>
<vertdef>
<altsys></altsys>
</vertdef>
</spref>
<distinfo>
<distrib>
<cntinfo>
<cntorgp>
<cntorg>Information Office, Illinois State Geological Survey (ISGS), a division of the Institute of Natural Resource Sustainability (INRS) of the University of Illinois</cntorg>
</cntorgp>
<cntaddr>
<addrtype>mailing and physical address</addrtype>
<address>615 East Peabody Drive</address>
<city>Champaign</city>
<state>Illinois</state>
<postal>61820</postal>
<country>USA</country>
</cntaddr>
<cntvoice>217-333-4747</cntvoice>
<cnttdd>217-785-0211</cnttdd>
<cntemail>isgs@isgs.illinois.edu</cntemail>
<hours>8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time</hours>
</cntinfo>
</distrib>
<distliab>
Refer to the Legal Notices of Terms and Conditions of the University of Illinois Web Privacy Policy (there is a link in the Cross References section) for policy statements regarding the following:

Disclaimer of Liability
Disclaimer of Warranties and Accuracy of Data
Disclaimer of Endorsement
Disclaimer for External Links
Disclaimer of Duty to Continue Provision of Data
Security
Choice of Law

By obtaining these data you agree to the provisions of the University of Illinois Web Privacy Policy, regardless of the manner in which the information was obtained.
</distliab>
<techpreq>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.</techpreq>
</distinfo>
<metainfo>
<metd>20090224</metd>
<metc>
<cntinfo>
<cntorgp></cntorgp>
<cntinst>Please refer to the Distribution Information section.</cntinst>
</cntinfo>
</metc>
<metstdn>FGDC Content Standards for Digital Geospatial Metadata</metstdn>
<metstdv>FGDC-STD-001-1998</metstdv>
<mettc>local time</mettc>
<metac>The access constraints as stated for the data apply also to the metadata.  Refer to the Access Constraints section of the Identification Information section.</metac>
<metuc>The use constraints as stated for the data apply also to the metadata.  Refer to the Use Constraints section of the Identification Information section.</metuc>
<metextns>
<onlink>http://www.esri.com/metadata/esriprof80.html</onlink>
<metprof>ESRI Metadata Profile</metprof>
</metextns>
</metainfo>
</metadata>
