Identification_Information:
  Citation:
    Citation_Information:
      Originator:
        United States Department of Agriculture, National Agricultural
        Statistics Service, Research and Development Division, Geospatial
        Information Branch, Area Frame Section
      Publication_Date: 2005
      Title: Stratification of Illinois 2005
      Publication_Information:
        Publication_Place: Fairfax, Virginia
        Publisher: U.S. Department of Agriculture, National Agricultural Statistics Service
      Online_Linkage: <http://www.nass.usda.gov/Research_and_Science/>
  Description:
    Abstract:
      The United States Department of Agriculture (USDA), National
      Agricultural Statistics Service (NASS) area sampling frame is a
      delineation of all parcels of land for the purpose of later sampling the
      parcels.  The area frame is constructed by visually interpreting satellite
      imagery to divide a state into homogenous land use areas (strata) based
      on percent cultivated.  The strata are typically defined as low, medium or
      high percent cultivated, non-agricultural land, urban use, agri-urban, or
      water.  The boundaries of the strata usually follow identifiable features
      such as roads, railroads and waterways.  The strata boundaries do not
      coincide with any political boundaries, with the exception of state
      boundaries.
    Purpose:
      These data are intended for geographic display and analysis at the state
      level.  The data should be displayed and analyzed at a scale of
      1:100,000 or smaller (e.g., 1:250,000, etc.).  The strata data are
      provided "as is".  USDA/NASS does not warrant results you may obtain
      using the strata data.
    Supplemental_Information: N/A
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 2005
    Currentness_Reference: 2005: Creation and publication date of strata boundaries
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: Irregular
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -91.51
      East_Bounding_Coordinate: -87.50
      North_Bounding_Coordinate: 42.51
      South_Bounding_Coordinate: 36.97
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus:
        National Agricultural Statistics Service, U.S. Department of
        Agriculture, 1987, Area Frame Design for Agricultural Surveys,
        Washington, D.C., NASS/USDA.
      Theme_Keyword: Stratification
      Theme_Keyword: Area sampling frame
      Theme_Keyword: Land use classes (strata)
    Place:
      Place_Keyword_Thesaurus:
        U.S. Department of Commerce, 1987, Codes for the Identification of the
        States, the District of Columbia and the Outlying Areas of The United
        States, and Associated Areas (Federal Information Processing Standard
        5-2):  Washington, D.C., National Institute of Standards and Technology.
      Place_Keyword: United States
      Place_Keyword: USA
      Place_Keyword: Illinois
  Access_Constraints: None
  Use_Constraints:
    None.  Acknowledgment of the U.S. Department of Agriculture, National
    Agricultural Statistics Service would be appreciated in products derived
    from these data.
  Point_of_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Area Frame Section staff
        Contact_Organization: USDA/NASS/RDD/AFS
      Contact_Address:
        Address_Type: mailing address
        Address: 1400 Independence Ave SW, Room 6034
        City: Fairfax
        State_or_Province: VA
        Postal_Code: 22030
      Contact_Voice_Telephone: 703-877-8000
      Contact_Electronic_Mail_Address: HQ_RD_OD@nass.usda.gov
  Data_Set_Credit: Area Frame Section staff
  Native_Data_Set_Environment:
    Environmental Systems Research Institute ArcView 3.3 shapefile, Microsoft
    Windows XP.


Data_Quality_Information:
  Logical_Consistency_Report: Checks for topological consistency were performed on this data set.
  Completeness_Report:
    There are no known gaps or missing data.  This data set includes the area in
    square miles and number of acres for each strata.  Boundaries may not be
    coincident with strata boundaries of adjacent states.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        The sources used for digitizing strata boundaries are 1:100,000 scale
        Digital Raster Graphics
      Quantitative_Horizontal_Positional_Accuracy_Assessment:
        Horizontal_Positional_Accuracy_Value: 5.0
        Horizontal_Positional_Accuracy_Explanation: N/A
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geologic Survey (USGS)
          Publication_Date: 1984 - 1987
          Title: USGS Topographic Quadrangles
          Publication_Information:
            Publication_Place: Reston, VA
            Publisher: U.S. Geologic Survey
      Source_Scale_Denominator: 100000
      Type_of_Source_Media: Paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1963
            Ending_Date: 1986
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: TopoQuad100
      Source_Contribution: attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Bureau of the Census
          Publication_Date: 2000
          Title: TIGER digital vector files
          Publication_Information:
            Publication_Place: Redlands, CA
            Publisher: Environmental Systems Research Institute, Inc.
      Type_of_Source_Media: online
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2000
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: TIGER
      Source_Contribution: spatial and attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Titan Systems Corporation
          Publication_Date: 2000
          Title: Sure! maps
          Publication_Information:
            Publication_Place: San Diego, California
            Publisher: Titan Systems
      Source_Scale_Denominator: 100000
      Type_of_Source_Media: digital
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1998
            Ending_Date: 2000
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: SureMaps
      Source_Contribution: spatial and attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: National Agricultural Statistics Service
          Publication_Date: 2005
          Title: Segment Center maps
          Publication_Information:
            Publication_Place: Fairfax, VA
            Publisher: National Agricultural Statistics Service
      Type_of_Source_Media: Digital
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2005
        Source_Currentness_Reference: 2004
      Source_Citation_Abbreviation: SegCenter Maps
      Source_Contribution: spatial and attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: United States Geological Survey
          Publication_Date: 2004
          Title: Landsat TM 5 Imagery
          Publication_Information:
            Publication_Place: Reston VA
            Publisher: USGS
      Type_of_Source_Media: CD
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2004
        Source_Currentness_Reference: 2004
      Source_Citation_Abbreviation: Landsat 5
      Source_Contribution: spatial and attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: USDA, Illinois Agricultural Statistics Office
          Publication_Date: 2002
          Title: Indiana Agriculture and Fisheries Statistics
          Publication_Information:
            Publication_Place: Indianapolis
            Publisher: USDA, Indiana dept. of Agriculture
      Type_of_Source_Media: Paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2002
        Source_Currentness_Reference: 2002
      Source_Citation_Abbreviation: State Ag. Stats
      Source_Contribution: attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: DeLorme
          Publication_Date: 2001
          Title: Indiana Atlas and Gazetteer
          Publication_Information:
            Publication_Place: Yarmouth, Maine
            Publisher: Delorme
      Type_of_Source_Media: Paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2001
        Source_Currentness_Reference: 2001
      Source_Citation_Abbreviation: Delorme Atlas
      Source_Contribution: spatial and attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: United States Geological Survey
          Publication_Date: 2003
          Title: Landsat 7 TM imagery
          Publication_Information:
            Publication_Place: Reston, VA
            Publisher: USGS
      Type_of_Source_Media: CD
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2003
        Source_Currentness_Reference: 2003
      Source_Citation_Abbreviation: Landsat 7
      Source_Contribution: Spatial and Attribute Information
    Process_Step:
      Process_Description:
        The area sampling frame for Illinois was constructed for use in 2005 and
        was based on USGS 1:100,000 scale topographic maps, 1:250,000
        scale digital Landsat imagery, and 1:100,000 suremaps.
        Individual county files were merged into single state file.  The
        coordinates for the strata polygons are unprojected to geographic
        latitude and longitude (decimal degrees).  The spatial data
        file format is Environmental Systems Research Institute's ArcView
        shapefile format.  The shapefile was checked and edited for
        topology in 2005.  Gaps and overlaps were corrected within and
        ESRI personal geodatabase.
      Source_Used_Citation_Abbreviation: TopoQuad100
      Source_Used_Citation_Abbreviation: Landsat 5
      Source_Used_Citation_Abbreviation: TIGER
      Source_Used_Citation_Abbreviation: Suremaps
      Source_Used_Citation_Abbreviation: AFSpaper
      Source_Used_Citation_Abbreviation: SegCenter
      Source_Used_Citation_Abbreviation: DeLorme_Atlas
      Source_Used_Citation_Abbreviation: State Ag Stats
      Source_Used_Citation_Abbreviation: Landsat 7
      Process_Date: 2005


Spatial_Data_Organization_Information:
  Indirect_Spatial_Reference:
    U.S. Department of Commerce, 1990, Counties and Equivalent
    Entities of The United States, Its Possessions, and
    Associated Areas (Federal Information Processing Standard
    6-4): Washington, D.C.  National Institute of Standards and
    Technology.
  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: G-Polygon
      Point_and_Vector_Object_Count: 7876


Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number: 16
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.9996
            Longitude_of_Central_Meridian: -87.00
            Latitude_of_Projection_Origin: 0.0
            False_Easting: 500000.00
            False_Northing: 0.0
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: row and column
        Coordinate_Representation:
          Abscissa_Resolution: 30
          Ordinate_Resolution: 30
        Planar_Distance_Units: meters
    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1983
      Ellipsoid_Name: Geodetic Reference 80
      Semi-major_Axis: 6378137.00
      Denominator_of_Flattening_Ratio: 298.257
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: Land Use Strata
      Entity_Type_Definition: Homogeneous land use area based on percent cultivated
      Entity_Type_Definition_Source:
        U.S. Department of Agriculture, National Agricultural Statistics
        Service
    Attribute:
      Attribute_Label: Strata
      Attribute_Definition: Land use category based on percent cultivated
      Attribute_Definition_Source:
        U.S. Department of Agriculture, National Agricultural Statistics
        Service
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11
          Enumerated_Domain_Value_Definition:
            > 75% cultivated, (cultivated categories consist of land used for
            crops, the remaining portion of land in the cultivated strata may
            include pasture, woods, waste, rangeland, etc.)
          Enumerated_Domain_Value_Definition_Source:
            "2004 Area Frame Design Information, Implementation Years of
            Current NASS Area Frames", NASS Area Frame Section, March 2004.
        Enumerated_Domain:
          Enumerated_Domain_Value: 12
          Enumerated_Domain_Value_Definition:
            51%-75% cultivated, (cultivated categories consist of land used for
            crops, the remaining portion of land in the cultivated strata may
            include pasture, woods, waste, rangeland, etc.)
          Enumerated_Domain_Value_Definition_Source:
            "2004 Area Frame Design Information, Implementation Years of
            Current NASS Area Frames", NASS Area Frame Section, March 2004.
        Enumerated_Domain:
          Enumerated_Domain_Value: 20
          Enumerated_Domain_Value_Definition: 15%-50% Cultivated
          Enumerated_Domain_Value_Definition_Source:
            "2004 Area Frame Design Information, Implementation Years of
            Current NASS Area Frames", NASS Area Frame Section, March 2004.
        Enumerated_Domain:
          Enumerated_Domain_Value: 31
          Enumerated_Domain_Value_Definition: Agri-Urban: >20 Home/Square Mile
          Enumerated_Domain_Value_Definition_Source:
            "2004 Area Frame Design Information, Implementation Years of
            Current NASS Area Frames", NASS Area Frame Section, March 2004.
        Enumerated_Domain:
          Enumerated_Domain_Value: 32
          Enumerated_Domain_Value_Definition: Commercial: >20 Home/Square Mile
          Enumerated_Domain_Value_Definition_Source:
            "2004 Area Frame Design Information, Implementation Years of
            Current NASS Area Frames", NASS Area Frame Section, March 2004.
        Enumerated_Domain:
          Enumerated_Domain_Value: 40
          Enumerated_Domain_Value_Definition: <15% Cultivated
          Enumerated_Domain_Value_Definition_Source:
            "2004 Area Frame Design Information, Implementation Years of
            Current NASS Area Frames", NASS Area Frame Section, March 2004.
        Enumerated_Domain:
          Enumerated_Domain_Value: 50
          Enumerated_Domain_Value_Definition: Non-Agricultural
          Enumerated_Domain_Value_Definition_Source:
            "2004 Area Frame Design Information, Implementation Years of
            Current NASS Area Frames", NASS Area Frame Section, March 2004.
    Attribute:
      Attribute_Label: Sum_area
      Attribute_Definition: The stratum area in square miles.
      Attribute_Definition_Source:
        U.S. Department of Agriculture, National Agricultural Statistics
        Service
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 295.135 (actual value, not range)
          Range_Domain_Maximum: 13907.999 (actual value, not range)
    Attribute:
      Attribute_Label: Sum_acres
      Attribute_Definition: The number of acres in a stratum.
      Attribute_Definition_Source:
        U.S. Department of Agriculture, National Agricultural Statistics
        Service
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 188775.294 (actual value, not range)
          Range_Domain_Maximum: 8895692.456 (actual value, not range)


Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: USDA/NASS/RDD
      Contact_Address:
        Address_Type: mailing address
        Address: 1400 Independence Ave SW, Room 6034
        City: Fairfax
        State_or_Province: VA
        Postal_Code: 22030
      Contact_Voice_Telephone: 703-877-8000
      Contact_Instructions: N/A
  Distribution_Liability:
    Users of the strata data are solely responsible for interpretations made
    from the product.  The strata data are provided "as is".  USDA/NASS does
    not warrant results you may obtain by using the strata data.  Feel free to
    contact our staff at (HQ_RD_OD@nass.usda.gov) if technical questions arise
    in the use of the strata data.
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: ESRI Shapefile
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: <http://www.nass.usda.gov/Research_and_Science/>
    Fees: There is no charge for the online option.
    Ordering_Instructions: N/A


Metadata_Reference_Information:
  Metadata_Date: 20040806
  Metadata_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Matthew Deaton
        Contact_Organization: USDA/NASS/RDD
      Contact_Address:
        Address_Type: mailing address
        Address: 1400 Independence Ave SW, Room 6034
        City: Fairfax
        State_or_Province: VA
        Postal_Code: 22030
      Contact_Voice_Telephone: 703-877-8000
      Contact_Electronic_Mail_Address: HQ_RD_OD@nass.usda.gov
  Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
  Metadata_Standard_Version: FGDC-STD-001-1998
  Metadata_Security_Information:
    Metadata_Security_Classification_System: None
    Metadata_Security_Classification: Unclassified
    Metadata_Security_Handling_Description: None

