Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 200101 Title: Urban Areas of the United States Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Online_Linkage: Description: Abstract: This data set includes a selection of urban areas in the United States derived from the urban areas layer of the Digital Chart of the World (DCW). This is a revised version of the 1998 data set. Only minor corrections have been made. Purpose: These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the U.S. Geological Survey in the use of these data. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 200101 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: 172 East_Bounding_Coordinate: -66 North_Bounding_Coordinate: 72 South_Bounding_Coordinate: 18 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: urban areas Theme_Keyword: populated places Place: Place_Keyword_Thesaurus: U.S. Department of Commerce, 1977, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions (Federal Information Processing Standard (FIPS) 10-3): Washington, DC, National Institute of Standards and Technology. Place_Keyword: United States 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 (FIPS 5-2): Washington, DC, National Institute of Standards and Technology. Place_Keyword: USA Place_Keyword: Alabama Place_Keyword: Alaska Place_Keyword: Arizona Place_Keyword: Arkansas Place_Keyword: California Place_Keyword: Colorado Place_Keyword: Connecticut Place_Keyword: Delaware Place_Keyword: District of Columbia Place_Keyword: Florida Place_Keyword: Georgia Place_Keyword: Hawaii Place_Keyword: Idaho Place_Keyword: Illinois Place_Keyword: Indiana Place_Keyword: Iowa Place_Keyword: Kansas Place_Keyword: Kentucky Place_Keyword: Louisiana Place_Keyword: Maine Place_Keyword: Maryland Place_Keyword: Massachusetts Place_Keyword: Michigan Place_Keyword: Minnesota Place_Keyword: Mississippi Place_Keyword: Missouri Place_Keyword: Montana Place_Keyword: Nebraska Place_Keyword: Nevada Place_Keyword: New Hampshire Place_Keyword: New Jersey Place_Keyword: New Mexico Place_Keyword: New York Place_Keyword: North Carolina Place_Keyword: North Dakota Place_Keyword: Ohio Place_Keyword: Oklahoma Place_Keyword: Oregon Place_Keyword: Pennsylvania Place_Keyword: Rhode Island Place_Keyword: South Carolina Place_Keyword: South Dakota Place_Keyword: Tennessee Place_Keyword: Texas Place_Keyword: Utah Place_Keyword: Vermont Place_Keyword: Virginia Place_Keyword: Washington Place_Keyword: West Virginia Place_Keyword: Wisconsin Place_Keyword: Wyoming Access_Constraints: None Use_Constraints: None. Acknowledgment of the National Atlas of the United States of America and (or) the U.S. Geological Survey would be appreciated in products derived from these data. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Gita Urban-Mathieux Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: 521 National Center City: Reston State_or_Province: VA Postal_Code: 20192 Contact_Voice_Telephone: 703-648-5175 Contact_Electronic_Mail_Address: atlasmail@usgs.gov Data_Quality_Information: Logical_Consistency_Report: No additional checks for topological consistency were performed on this data set. Completeness_Report: This data set contains urban areas for the 50 United States. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: National Imagery and Mapping Agency (NIMA) Publication_Date: 1994 Title: Digital Chart of the World Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Type_of_Source_Media: CD-ROM Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1994 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: DCW Source_Contribution: spatial and attribute information Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1998 Title: State Boundaries of the United States Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Source_Scale_Denominator: 2000000 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: ATLAS-STATE Source_Contribution: spatial information Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1998 Title: Cities and Towns of the United States Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Source_Scale_Denominator: 2000000 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1972 Ending_Date: 1994 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: ATLAS-CITIES98 Source_Contribution: spatial and attribute information Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1998 Title: Hydrography Features of the United States Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Source_Scale_Denominator: 2000000 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: ATLAS-HY Source_Contribution: spatial information Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1998 Title: Urban Areas of the United States Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Source_Scale_Denominator: 2000000 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: ATLAS-URBAN98 Source_Contribution: spatial information Process_Step: Process_Description: Urban polygons from the Digital Chart of the World (DCW) CD-ROM were extracted and converted to Arc/INFO format. Where the urban boundaries extended beyond the shoreline of ATLAS-STATES, the shoreline was matched to the ATLAS-STATES shoreline. Names of the urban areas were added using names in ATLAS-CITIES98. In large metropolitan areas many smaller areas were labeled as part of the metropolitan area. The State in which the urban area is located was also added. Several areas were modified to conform to the 1:2,000,000-scale hydrography (ATLAS-HY) layer. Some smaller polygons that represent undeveloped areas within the urban area were removed and merged with the larger urban area. Military reservations were also removed. Finally, the attribute for State FIPS was added. Source_Used_Citation_Abbreviation: DCW Source_Used_Citation_Abbreviation: ATLAS-STATE Source_Used_Citation_Abbreviation: ATLAS-HY Source_Used_Citation_Abbreviation: ATLAS-CITIES98 Process_Date: 1998 Source_Produced_Citation_Abbreviation: ATLAS-URBAN98 Process_Step: Process_Description: The spellings for San Francisco, CA and Bismarck, ND were corrected. Source_Used_Citation_Abbreviation: ATLAS-URBAN98 Process_Date: 200101 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 6176 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.02083333 Longitude_Resolution: 0.02083333 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: GRS1980 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257222 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Urban Areas (described by Urbanap020.dbf) Entity_Type_Definition: Urban areas are places where large populations exist. Entity_Type_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Shape Attribute_Definition: The representation of the entity in the data. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Polygon Enumerated_Domain_Value_Definition: A 2-dimensional element. Enumerated_Domain_Value_Definition_Source: ESRI GIS software Attribute: Attribute_Label: Area Attribute_Definition: The size of the shape in coverage units. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.000 Range_Domain_Maximum: 0.298 Attribute: Attribute_Label: Perimeter Attribute_Definition: The perimeter of the shape in coverage units. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.001 Range_Domain_Maximum: 6.774 Attribute: Attribute_Label: Urbanap020 Attribute_Definition: Internal feature number. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2 Range_Domain_Maximum: 6177 Attribute: Attribute_Label: Name Attribute_Definition: The name of the urban area. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values Unrepresentable_Domain: There is no predefined set of valid urban area names. Name represents the most significant place that is in the polygon. Attribute: Attribute_Label: State Attribute_Definition: The 2-character FIPS code of the State or State equivalent. Where the urban area falls in more than one State, the codes are separated by dashes: DC-VA-MD. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Codes for the Identification of the States, the District of Columbia and the Outlying Areas of the United States, and Associated Areas, FIPS 5-2. Codeset_Source: U.S. Department of Commerce, National Institute of Standards and Technology Attribute: Attribute_Label: State_fips Attribute_Definition: The 2-digit FIPS code of the State or State equivalent. Where the urban area falls in more than one State, the codes are separated by dashes: 11-51-24. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Codes for the Identification of the States, the District of Columbia and the Outlying Areas of the United States, and Associated Areas, FIPS 5-2. Codeset_Source: U.S. Department of Commerce, National Institute of Standards and Technology Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Earth Science Information Center, U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: 507 National Center City: Reston State_or_Province: VA Postal_Code: 20192 Contact_Voice_Telephone: 1-888-ASK-USGS (1-888-275-8747) Contact_Voice_Telephone: 703-648-5920 Contact_Instructions: In addition to the address above, there are other ESIC offices throughout the country. A full list of these offices is at . Distribution_Liability: Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made by the U.S. Geological Survey regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by the U.S. Geological Survey in the use of these 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: Digital_Transfer_Option: Offline_Option: Offline_Media: CD-ROM Recording_Format: tar Digital_Form: Digital_Transfer_Information: Format_Name: SDTS Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: Digital_Transfer_Option: Offline_Option: Offline_Media: CD-ROM Recording_Format: tar Fees: There is no charge for the online option. For National Atlas files ordered on CD-ROM there is a base price of $45.00 per disc, a handling fee of $5.00, and a per-file charge based on file size. The charge for files less than 10 megabytes in size is $1.00. The charge for files that range in size from 10 to 150 megabytes is $7.50. The charge for files of 150 megabytes or larger is $15.00. The charge is $1.00 for the Urban Areas of the United States data set. Ordering_Instructions: To order files on CD-ROM, please see . Metadata_Reference_Information: Metadata_Date: 20011029 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Gita Urban-Mathieux Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: 521 National Center City: Reston State_or_Province: VA Postal_Code: 20192 Contact_Voice_Telephone: 703-648-5175 Contact_Electronic_Mail_Address: atlasmail@usgs.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