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: 1990
      Title: Stratification of Louisiana 1990
      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:
      Multiple_Dates/Times:
        Single_Date/Time:
          Calendar_Date: 2004
        Single_Date/Time:
          Calendar_Date: 1990
    Currentness_Reference:
      2004:  Topology check performed (gaps and overlaps removed).
      1990:  Creation of original area sampling frame strata boundaries.
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: Irregular
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -94.04
      East_Bounding_Coordinate: -88.82
      North_Bounding_Coordinate: 33.02
      South_Bounding_Coordinate: 28.93
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus:
        National Agricultural Statistics Service, U.S. Department of
        Agriculture, 2000, 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, 1988, 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: Louisiana
  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: 3251 Old Lee Highway, Suite 305
        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 shapefile, Microsoft
    Windows NT.
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.  Because the area sampling
    frame strata boundaries are modified, the 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. Geological Survey (USGS)
          Publication_Date: unknown
          Title: USGS Topographic Raster Graphics
          Publication_Information:
            Publication_Place: Sioux Falls, SD
            Publisher: U.S. Geological Survey
      Source_Scale_Denominator: 100000
      Type_of_Source_Media: paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1973
            Ending_Date: 1990
        Source_Currentness_Reference: source date
      Source_Citation_Abbreviation: TopoDRG
      Source_Contribution: spatial and attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Space Imaging
          Publication_Date: 1988
          Title: Landsat 5 Thematic Mapper imagery
          Publication_Information:
            Publication_Place: Lanham, MD
            Publisher: Space Imaging
      Type_of_Source_Media: paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1988
            Ending_Date: 1988
        Source_Currentness_Reference: scene date
      Source_Citation_Abbreviation: TM5imagery
      Source_Contribution: spatial and attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Department of Commerce
          Publication_Date: 1987
          Title: Census of Agriculture
          Publication_Information:
            Publication_Place: Washington, D.C.
            Publisher: U.S. Department of Commerce
      Type_of_Source_Media: Paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1987
        Source_Currentness_Reference: most recent agricultural census
      Source_Citation_Abbreviation: Ag-Census
      Source_Contribution: spatial and attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Louisiana State University Agricultural Center
          Publication_Date: 1987
          Title: Agricultural Statistics and Prices For Louisiana, 1981-1986
          Publication_Information:
            Publication_Place: Louisiana
            Publisher: Louisiana Agricultural Experiment Station
      Type_of_Source_Media: paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1988
        Source_Currentness_Reference: most recent agricultural statistics
      Source_Citation_Abbreviation: Ag-Stats
      Source_Contribution: spatial and attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: USDA, National Agricultural Statistics Service
          Publication_Date: 1988
          Title: June Enumerative Surveys
      Type_of_Source_Media: paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1988
        Source_Currentness_Reference: dates of satellite imagery
      Source_Citation_Abbreviation: JES
      Source_Contribution: spatial and attribute information
    Process_Step:
      Process_Description:
        The area sampling frame for Louisiana was constructed in 1989 for use
        in 1990 and was based on USGS 1:100,000 Topo DRGs and Landsat5 imagery.
      Source_Used_Citation_Abbreviation: TopoDRG
      Source_Used_Citation_Abbreviation: TM5imagery
      Source_Used_Citation_Abbreviation: Ag-Census
      Source_Used_Citation_Abbreviation: Ag-Stats
      Source_Used_Citation_Abbreviation: JES
      Process_Date: 1989
    Process_Step:
      Process_Description: The area sampling frame was converted into a digital geospatial shapefile format.
      Process_Date: 2003
    Process_Step:
      Process_Description:
        Individual county files were merged into a single state file
        and dissolved by strata. Topology was constructed in a personal
        geodatabase data format where overlaps and gaps were corrected. The data
        were exported to Environmental Systems Research Institute's Arcview
        shapefile format. Coordinates for the strata polygons are unprojected to
        geographic latitude and longitude (decimal degrees) referenced to the
        North American Datum of 1983 (NAD83).
      Process_Date: 2004
Spatial_Data_Organization_Information:
  Indirect_Spatial_Reference:
    U.S. Department of Commerce, 1988, 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: 4856 (prior to dissolving boundaries)


Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number: 15
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.9996
            Longitude_of_Central_Meridian: -93.00
            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: 13
          Enumerated_Domain_Value_Definition:
            > 50% 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:
            "1989 Area Frame Design Information, Implementation Years of
            Current NASS Area Frames", NASS Area Frame Section, March 1989.
        Enumerated_Domain:
          Enumerated_Domain_Value: 20
          Enumerated_Domain_Value_Definition:
            15%-50% 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:
            "1989 Area Frame Design Information, Implementation Years of
            Current NASS Area Frames", NASS Area Frame Section, March 1989.
        Enumerated_Domain:
          Enumerated_Domain_Value: 31
          Enumerated_Domain_Value_Definition:
            Agri-urban with > 100 homes per square mile (less than 15%
            cultivated)
          Enumerated_Domain_Value_Definition_Source:
            "1989 Area Frame Design Information, Implementation Years of
            Current NASS Area Frames", NASS Area Frame Section, March 1989.
        Enumerated_Domain:
          Enumerated_Domain_Value: 32
          Enumerated_Domain_Value_Definition:
            Commercial/dense urban with > 100 homes per square mile (city center
            with 0% cultivated)
          Enumerated_Domain_Value_Definition_Source:
            "1989 Area Frame Design Information, Implementation Years of
            Current NASS Area Frames", NASS Area Frame Section, March 1989.
        Enumerated_Domain:
          Enumerated_Domain_Value: 40
          Enumerated_Domain_Value_Definition:
            < 15% 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:
            "1989 Area Frame Design Information, Implementation Years of
            Current NASS Area Frames", NASS Area Frame Section, March 1989.
        Enumerated_Domain:
          Enumerated_Domain_Value: 50
          Enumerated_Domain_Value_Definition:
            Non-agricultural (state or
            national parks, military bases, etc.)
          Enumerated_Domain_Value_Definition_Source:
            "1989 Area Frame Design Information, Implementation Years of
            Current NASS Area Frames", NASS Area Frame Section, March 1989.
        Enumerated_Domain:
          Enumerated_Domain_Value: 62
          Enumerated_Domain_Value_Definition: Water
          Enumerated_Domain_Value_Definition_Source:
            "1989 Area Frame Design Information, Implementation Years of
            Current NASS Area Frames", NASS Area Frame Section, March 1989.
    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: 135.197 (actual value, not range)
          Range_Domain_Maximum: 28373.907 (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: 86525.7 (actual value, not range)
          Range_Domain_Maximum: 18159228.407 (actual value, not range)


    Attribute:
      Attribute_Label: Cnt_Strata
      Attribute_Definition:
        Count of strata polygons in each strata prior to
        dissolving into a single strata
      Attribute_Definition_Source:
        U.S. Department of Agriculture, National Agricultural Statistics
        Service
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 198
          Range_Domain_Maximum: 1921
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: USDA/NASS/RDD
      Contact_Address:
        Address_Type: mailing address
        Address: 3251 Old Lee Highway, Suite 305
        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: 20041104
  Metadata_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Lee Plowman
        Contact_Organization: USDA/NASS/RDD
      Contact_Address:
        Address_Type: mailing address
        Address: 3251 Old Lee Highway, Suite 305
        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

