Identification_Information: Citation: Citation_Information: Originator: Steve Hanser, USGS-FRESC, Snake River Field Station Publication_Date: 2008 Title: Populated Areas in the Western United States Geospatial_Data_Presentation_Form: raster digital data Other_Citation_Details: Leu, M., S.E. Hanser, S.T. Knick. 2008. The human footprint in the west: a large-scale analysis of anthropogenic impacts. Ecological Applications 18(5): 1119-1139. Online_Linkage: http://sagemap.wr.usgs.gov Description: Abstract: This is a map of populated areas with population density greater than or equal to 1 individual/ ha (i.e., rural/exurban but including suburban and urban as defined by Marzluff et al. 2001) as determined from U.S. Census data corrected for public lands. Purpose: Spatially represent rural/exurban, suburban, and urban areas in 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 Theme_Keyword: Urban Theme_Keyword: Suburban Theme_Keyword: Exurban Theme_Keyword: Rural Theme_Keyword: populated areas 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, but the user assumes all responsibility for appropriate use of the data. 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 Security_Information: Security_Classification_System: None Security_Classification: Unclassified Security_Handling_Description: None Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.4.1420 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: 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 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2000 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Population Density Source_Contribution: Population density in the western United States Process_Step: Process_Description: In GRID used the command pop_areas = population density >= 1 to select areas with population density greater than or equal to one. Source_Used_Citation_Abbreviation: population density Process_Date: 200301 Source_Produced_Citation_Abbreviation: pop_areas_hf 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: Dataset copied. Source_Used_Citation_Abbreviation: H:\Human_Footprint_Inputs\Pop_Areas\pop_areas_hf 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: pop_areas_hf.vat Entity_Type_Definition: Value attribute table Entity_Type_Definition_Source: ESRI Attribute: Attribute_Label: Count Attribute_Definition: Count of grid cells with associated Value attribute Attribute_Definition_Source: ESRI Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5149057 Range_Domain_Maximum: 373963716 Attribute: Attribute_Label: Rowid 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: Attribute_Label: COUNT Attribute: Attribute_Label: Value Attribute_Definition: Populated Areas Attribute_Definition_Source: User-defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: Non-Populated Area (Population Density less than 1) Enumerated_Domain_Value_Definition_Source: Marzluff et al. 2001 Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Populated Area (Population density greater than or equal to 1) Enumerated_Domain_Value_Definition_Source: Marzluff et al. 2001 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: Populated Areas in the Western United States 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. 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