Identification_Information:
  Citation:
    Citation_Information:
      Originator: Steve Hanser, USGS-FRESC, Snake River Field Station
      Publication_Date: 2004
      Title: Population Density in the Western United States (Individuals / ha)
      Geospatial_Data_Presentation_Form: raster digital data
      Online_Linkage: http://sagemap.wr.usgs.gov/ftp/regional/usgs/popdens_hf.zip
  Description:
    Abstract: This map of human habitation was developed, following a modification of Schumacher et al. (2000), by incorporating 2000 U.S Census Data and land ownership.  The 2000 U.S. Census Block data and ownership map of the western United States were used to correct the population density for uninhabited public lands.  All census blocks in the western United States were merged into one shapefile which was then clipped to contain only those areas found on private or indian reservation lands because human habitation on federal land is negligible.  The area (ha) for each corrected polygon was calculated and the 2000 census block data table was joined to the shapefile.  In a new field, population density (individuals/ha) corrected for public land in census blocks was calculated .  SHAPEGRID in ARC/INFO was used to convert population density values to grid with 90m resolution.
    Purpose: Spatially represent human population density throughout the western United States 
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 2000
    Currentness_Reference: publication date
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -125.839147
      East_Bounding_Coordinate: -99.737876
      North_Bounding_Coordinate: 49.371521
      South_Bounding_Coordinate: 30.785066
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Population density
      Theme_Keyword: Population
      Theme_Keyword: Census 2000
      Theme_Keyword: TIGER/line
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Washington
      Place_Keyword: Oregon
      Place_Keyword: California
      Place_Keyword: Idaho
      Place_Keyword: Nevada
      Place_Keyword: Utah
      Place_Keyword: Arizona
      Place_Keyword: Montana
      Place_Keyword: Wyoming
      Place_Keyword: Colorado
      Place_Keyword: New Mexico
      Place_Keyword: Western US
  Access_Constraints: None
  Use_Constraints: None.
  Point_of_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Steven Hanser
        Contact_Organization: USGS-FRESC, Snake River Field Station
      Contact_Position: Wildlife Biologist / GIS Specialist
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 970 Lusk St
        City: Boise
        State_or_Province: ID
        Postal_Code: 83706
      Contact_Voice_Telephone: 208-426-2892
      Contact_Facsimile_Telephone: 208-426-5210
      Contact_Electronic_Mail_Address: shanser@usgs.gov
  Data_Set_Credit: Steven Hanser, USGS-FRESC, Snake River Field Station, Boise, ID
  Native_Data_Set_Environment: Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report: Dependent on the accuracy of the source data; No further accuracy assessments completed.
  Logical_Consistency_Report: Dependent on the logical consistency of the data from which this coverage was created. No additional checks for consistency or accuracy was completed on this final product.
  Completeness_Report: Based on the completeness of the data from which this coverage was created. Review metadata for individual source coverages to assess completeness of each.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Department of Commerce, U.S. Census Bureau Geography Division
          Publication_Date: 2002
          Publication_Time: Unknown
          Title: 2000 TIGER/Line Census Block Boundaries
          Edition: US Census 2000
          Series_Information:
            Series_Name: TIGER/Line Files
            Issue_Identification: Version represents the month and year file created
          Publication_Information:
            Publication_Place: Washington, DC
            Publisher: U.S. Department of Commerce, U.S. Census Bureau Geography Division
          Online_Linkage: http://arcdata.esri.com/data/tiger2000/tiger_download.cfm
      Source_Scale_Denominator: 100000
      Type_of_Source_Media: online
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2002
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: Census Blocks
      Source_Contribution: Census block geography used to georeference demography data.
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: USGS, Snake River Field Station, Sage-grouse Rangewide Conservation Assessment Project
          Publication_Date: 20040601
          Title: Land ownership in the western United States
          Geospatial_Data_Presentation_Form: vector digital data
          Online_Linkage: http:\\sagemap.wr.usgs.gov\
      Type_of_Source_Media: online
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 20040101
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: Westownership
      Source_Contribution: Land ownership map of the western United States
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Department of Commerce, U.S. Census Bureau Geography Division
          Publication_Date: 2002
          Publication_Time: Unknown
          Title: Census Block Demographics (SF1)
          Edition: US Census 2000
          Series_Information:
            Series_Name: TIGER/Line Files
            Issue_Identification: Version represents the month and year file created
          Publication_Information:
            Publication_Place: Washington, DC
            Publisher: U.S. Department of Commerce, U.S. Census Bureau Geography Division
          Online_Linkage: http://arcdata.esri.com/data/tiger2000/tiger_download.cfm
      Type_of_Source_Media: online
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2002
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: Census Block Demographics
      Source_Contribution: Census block demographic data used to calculate population density.
    Process_Step:
      Process_Description: Used the geoprocessing wizard in ArcGIS to merge all census block polygon shapefiles for the western United States.
      Source_Used_Citation_Abbreviation: Census Blocks
      Process_Date: 200301
      Source_Produced_Citation_Abbreviation: block geography
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Steve Hanser
            Contact_Organization: USGS-FRESC Snake River Field Station
          Contact_Position: Wildlife Biologist / GIS Specialist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 970 Lusk Street
            City: Boise
            State_or_Province: ID
            Postal_Code: 83706
          Contact_Voice_Telephone: 208-426-2892
          Contact_Facsimile_Telephone: 208-426-5210
          Contact_Electronic_Mail_Address: shanser@usgs.gov
    Process_Step:
      Process_Description: SHAPEGRID used to convert census block shapefile to grid with FID as the grid value.
      Source_Used_Citation_Abbreviation: block geography
      Process_Date: 200301
      Source_Produced_Citation_Abbreviation: block grid
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Steve Hanser
            Contact_Organization: USGS-FRESC Snake River Field Station
          Contact_Position: Wildlife Biologist / GIS Specialist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 970 Lusk Street
            City: Boise
            State_or_Province: ID
            Postal_Code: 83706
          Contact_Voice_Telephone: 208-426-2892
          Contact_Facsimile_Telephone: 208-426-5210
          Contact_Electronic_Mail_Address: shanser@usgs.gov
    Process_Step:
      Process_Description: Because populated areas on federal land are negligible, private and Bureau of Indian Affairs land were selected using Westownership and the query:  PUB_PVT = 'PVT'.  The results of this query was exported to a new shapefile. 
      Source_Used_Citation_Abbreviation: Westownership
      Process_Date: 200301
      Source_Produced_Citation_Abbreviation: private.shp
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Steve Hanser
            Contact_Organization: USGS-FRESC Snake River Field Station
          Contact_Position: Wildlife Biologist / GIS Specialist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 970 Lusk Street
            City: Boise
            State_or_Province: ID
            Postal_Code: 83706
          Contact_Voice_Telephone: 208-426-2892
          Contact_Facsimile_Telephone: 208-426-5210
          Contact_Electronic_Mail_Address: shanser@usgs.gov
    Process_Step:
      Process_Description: A new attribute was added to the shapefile with a value of one.  SHAPEGRID was then used to convert the private.shp to a grid with a value of 1 for private and indian reservation lands and No Data on other lands.
      Source_Used_Citation_Abbreviation: private.shp
      Process_Date: 200301
      Source_Produced_Citation_Abbreviation: privind_lands
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Steve Hanser
            Contact_Organization: USGS-FRESC Snake River Field Station
          Contact_Position: Wildlife Biologist / GIS Specialist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 970 Lusk Street
            City: Boise
            State_or_Province: ID
            Postal_Code: 83706
          Contact_Voice_Telephone: 208-426-2892
          Contact_Facsimile_Telephone: 208-426-5210
          Contact_Electronic_Mail_Address: shanser@usgs.gov
    Process_Step:
      Process_Description: Used the raster calculator in ArcGIS to clip out the portions of census blocks that were private (private_cb_id = privind_lands * block grid) and converted the resulting temporary grid into a shapefile using GRIDSHAPE in ARC/INFO.
      Source_Used_Citation_Abbreviation: privind_lands
      Source_Used_Citation_Abbreviation: Census Blocks
      Process_Date: 200301
      Source_Produced_Citation_Abbreviation: private_cb_id.shp
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Steve Hanser
            Contact_Organization: USGS-FRESC Snake River Field Station
          Contact_Position: Wildlife Biologist / GIS Specialist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 970 Lusk Street
            City: Boise
            State_or_Province: ID
            Postal_Code: 83706
          Contact_Voice_Telephone: 208-426-2892
          Contact_Facsimile_Telephone: 208-426-5210
          Contact_Electronic_Mail_Address: shanser@usgs.gov
    Process_Step:
      Process_Description: Calculated area (ha) for each polygon using Xtools extension and joined the 2000 census block data table to the private landownership shapfile.
      Source_Used_Citation_Abbreviation: private_cb_id.shp
      Process_Date: 200301
      Source_Produced_Citation_Abbreviation: private_cb_id.shp
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Steve Hanser
            Contact_Organization: USGS-FRESC Snake River Field Station
          Contact_Position: Wildlife Biologist / GIS Specialist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 970 Lusk Street
            City: Boise
            State_or_Province: ID
            Postal_Code: 83706
          Contact_Voice_Telephone: 208-426-2892
          Contact_Facsimile_Telephone: 208-426-5210
          Contact_Electronic_Mail_Address: shanser@usgs.gov
    Process_Step:
      Process_Description: In a new field, calculated population density (pop2000 / hectares) of private and indian reservation lands in census blocks.
      Source_Used_Citation_Abbreviation: private_cb_id.shp
      Process_Date: 200301
      Source_Produced_Citation_Abbreviation: private_cb_id.shp
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Steve Hanser
            Contact_Organization: USGS-FRESC Snake River Field Station
          Contact_Position: Wildlife Biologist / GIS Specialist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 970 Lusk Street
            City: Boise
            State_or_Province: ID
            Postal_Code: 83706
          Contact_Voice_Telephone: 208-426-2892
          Contact_Facsimile_Telephone: 208-426-5210
          Contact_Electronic_Mail_Address: shanser@usgs.gov
    Process_Step:
      Process_Description: We used SHAPEGRID in ARC/INFO to convert population density values to grid.
      Source_Used_Citation_Abbreviation: private_cb_id.shp
      Process_Date: 200301
      Source_Produced_Citation_Abbreviation: popdens
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Steve Hanser
            Contact_Organization: USGS-FRESC Snake River Field Station
          Contact_Position: Wildlife Biologist / GIS Specialist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 970 Lusk Street
            City: Boise
            State_or_Province: ID
            Postal_Code: 83706
          Contact_Voice_Telephone: 208-426-2892
          Contact_Facsimile_Telephone: 208-426-5210
          Contact_Electronic_Mail_Address: shanser@usgs.gov
    Process_Step:
      Process_Description: Filled in No Data areas which correspond to public lands with population density of zero in GRID using the command popdens_final = con(isnull(popdens), 0, popdens) with SETMASK of western states boundary
      Source_Used_Citation_Abbreviation: popdens
      Process_Date: 200301
      Source_Produced_Citation_Abbreviation: popdens_final
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Steve Hanser
            Contact_Organization: USGS-FRESC Snake River Field Station
          Contact_Position: Wildlife Biologist / GIS Specialist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 970 Lusk Street
            City: Boise
            State_or_Province: ID
            Postal_Code: 83706
          Contact_Voice_Telephone: 208-426-2892
          Contact_Facsimile_Telephone: 208-426-5210
          Contact_Electronic_Mail_Address: shanser@usgs.gov
Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Raster
  Raster_Object_Information:
    Raster_Object_Type: Grid Cell
    Row_Count: 22112
    Column_Count: 21580
    Vertical_Count: 1
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Planar:
      Map_Projection:
        Map_Projection_Name: Albers Conical Equal Area
        Albers_Conical_Equal_Area:
          Standard_Parallel: 38
          Standard_Parallel: 41
          Longitude_of_Central_Meridian: -114
          Latitude_of_Projection_Origin: 34
          False_Easting: 0
          False_Northing: 0
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: row and column
        Coordinate_Representation:
          Abscissa_Resolution: 90.000000
          Ordinate_Resolution: 90.000000
        Planar_Distance_Units: meters
    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1927
      Ellipsoid_Name: Clarke 1866
      Semi-major_Axis: 6378206.4
      Denominator_of_Flattening_Ratio: 294.978698
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: N/A; Floating Point Data
      Entity_Type_Definition: N/A
      Entity_Type_Definition_Source: N/A
    Attribute:
      Attribute_Label: ObjectID
      Attribute_Definition: Internal feature number.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: Value
      Attribute_Definition: Population Density (Individuals / ha)
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 7248.1479
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: USGS, Snake River Field Station, GIS Laboratory
      Contact_Position: Geographer
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 970 Lusk St
        City: Boise
        State_or_Province: ID
        Postal_Code: 83706
        Country: USA
      Contact_Voice_Telephone: 208-426-5204
      Contact_Facsimile_Telephone: 208-426-5210
      Contact_Electronic_Mail_Address: tom_zarriello@usgs.gov
  Resource_Description: Population Density in the Western United States (Individuals / ha)
  Distribution_Liability: We make every effort to provide and maintain accurate, complete, usable, and timely information on our web sites. However, some USGS data and information accessed through these pages may, of necessity, be preliminary in nature and presented prior to final review and approval by the Director of the USGS. These data and information are provided with the understanding that they are not guaranteed to be correct or complete. Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user.
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: ARCG
        Transfer_Size: 1839.972
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://sagemap.wr.usgs.gov/ftp/regional/usgs/
          Online_Computer_and_Operating_System: http://sagemap.wr.usgs.gov/ftp/regional/usgs/
    Fees: None
  Available_Time_Period:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 2004
Metadata_Reference_Information:
  Metadata_Date: 20040825
  Metadata_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Steven Hanser
        Contact_Organization: USGS-FRESC, Snake River Field Station
      Contact_Position: Wildlife Biologist / GIS Specialist
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 970 Lusk St
        City: Boise
        State_or_Province: ID
        Postal_Code: 83706
      Contact_Voice_Telephone: 208-426-2892
      Contact_Facsimile_Telephone: 208-426-5201
      Contact_Electronic_Mail_Address: shanser@usgs.gov
      Hours_of_Service: 8:00am-5:00pm MST
  Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
  Metadata_Standard_Version: FGDC-STD-001-1998
  Metadata_Time_Convention: local time
  Metadata_Extensions:
    Online_Linkage: http://www.esri.com/metadata/esriprof80.html
    Profile_Name: ESRI Metadata Profile
  Metadata_Extensions:
    Online_Linkage: http://www.esri.com/metadata/esriprof80.html
    Profile_Name: ESRI Metadata Profile
  Metadata_Extensions:
    Online_Linkage: http://www.esri.com/metadata/esriprof80.html
    Profile_Name: ESRI Metadata Profile
  Metadata_Extensions:
    Online_Linkage: http://www.esri.com/metadata/esriprof80.html
    Profile_Name: ESRI Metadata Profile