Search this site:

urbanap020 dataset

This coverage includes a selection of urban areas in the Southern United States. Maps cities.

Downloads:

GIS Data:

669K

Zipped archive containing ArcView shapefile with attribute, projection, and metadata files

Tabular Data:

306K

282K

105K

Attribute information in Excel spreadsheet, dBase IV database, and comma-delimited text formats

Metadata:

24K

13K

16K

Metadata as an ordinary web page, in XML, and as plain text

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:

Mr. Bruce Wright from U.S. Geological Survey with dataset modifications by Mr. Serdar Ertep, US Environmental Protection Agency.

Publication_Date: 2000

Title: urbanap020

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Salt Lake City, UT

Publisher: USDA Forest Service

Other_Citation_Details: filename: urbanap020.shp

Online_Linkage: <http://www.srs.fs.usda.gov/sustain/data>

Description:

Abstract:

This coverage was identified on the USGS Water Resources NSDI Node site at <http://nsdi.usgs.gov>. 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).The data was then modified by the US Environmental Protection Agency Personnel for use in the Southern Forest Resource Assessment and exported to a shapefile. The USGS FGDC compliant metadata was then modified to reflect any data set edits completed by the US Environmental Protection Agency Personnel. (see process description starting on page 4).

Purpose:

The digital data sets of the National Atlas are used to create electronic and hard copy maps that depict various aspects of the nation. The data can be used to conduct geographic analysis on National and large regional scales. The digital data will provide a basis from which future revisions of the atlas can be derived.

Supplemental_Information:

USGS Revisions on source coverage: 1) 6/29/98 - Corrected ellipsoid name from WGS84 to GRS1980 and changed flattening ratio. 2) 11/13/98 - Added State FIPS attribute; move polygons for Altus, OK and Olustee, OK; and edited STATES field for Kansas City and Washington Metro Area. US Enviromental Protection Agency Shapefile Information: The states included within the dataset include: AL, AR, FL, GA, KY, LA, MS, NC, OK, SC, TN, TX, and VA

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1996

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Unknown

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -107.929324

East_Bounding_Coordinate: -75.096063

North_Bounding_Coordinate: 39.719442

South_Bounding_Coordinate: 23.826109

Keywords:

Theme:

Theme_Keyword: urban areas

Theme_Keyword: society

Theme_Keyword: Cultural, society and demographic

Place:

Place:

Place_Keyword_Thesaurus: AL, AR, FL, GA, KY, LA, MS, NC, OK, SC, TN, TX, VA

Place_Keyword: Southern Forest Resource Assessment, SFRA

Access_Constraints: None

Use_Constraints:

None. The USDA Forest Service does not guarantee the accuracy of this data.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USDA-Forest Service

Contact_Person: Mr. John M. Pye

Contact_Position: Ecologist

Contact_Address:

Address_Type: mailing and physical address

Address: USDA Forest Service, SRS4851

Address: 3041 E. Cornwallis Rd

City: Research Triangle Park

State_or_Province: NC

Postal_Code: 27709

Country: USA

Contact_Voice_Telephone: (919).549.4013

Contact_Electronic_Mail_Address: jpye@fs.fed.us

Data_Set_Credit:

1) USGS- the original urban area coverage and metadata. 2) US Environmental Protection Agency- modifications to data for use in the Southern Forest Resource Assessment (SFRA).

Security_Information:

Security_Classification: Unclassified

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 3; ESRI ArcCatalog 8.3.0.800

Data_Quality_Information:

Logical_Consistency_Report:

No additional checks for topological consistency were performed on this data set.

Assessment-standard projection: Projection: Albers Equal Area Units: Meters Spheroid: GRS80 Datum: NAD83 First Standard Parallel: 27 degrees 30 minutes Second Standard Parallel: 37 degrees 30 minutes Central Meridian: -90 degrees 00 minutes Latitude of Origin: 25 degrees 00 minutes False Easting: 0.0 False Northing: 0.0

Completeness_Report: none

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

All linear delineations are within National Map Accuracy Standards.

Quantitative_Horizontal_Positional_Accuracy_Assessment:

Horizontal_Positional_Accuracy_Value: +/- 1,016 meters

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

All linear delineations are within National Map Accuracy Standards.

Quantitative_Vertical_Positional_Accuracy_Assessment:

Vertical_Positional_Accuracy_Value: +/- 500 meters

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: electronic mail system

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

Process_Step:

Process_Description:

USGS 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 extend beyond the 1:2M shoreline, the 2M shoreline was used by "CLIPPING" the urban polygons. Names of the urban areas were added. 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 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.

Process_Date: 1998

Process_Step:

Process_Description:

Data Modifications by US Environmental Protection Agency Personnel: Sept. & Oct.-2000: The coverages were downloaded by US Environmental Agency personnel on 22-Sep-2000 in compressed Arc Info Export format along with their associated metadata. The coverages were then reprojected and clipped to match Assessment standard Albers projection and State Assessment coverage boundary coordinates. This process used the Arc Info PROJECT and CLIP command. The coverage then exported as a shapefile.

Process_Date: 2000

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: US Environmental Protection Agency

Contact_Person: Mr. Serdar Ertep

Contact_Address:

Address_Type: mailing and physical address

Address: US Environmental Protection Agency

Address: Region 4

Address: Atlanta Federal Center

Address: 61 Forsyth Street, S.W.

City: Atlanta

State_or_Province: GA

Postal_Code: 30303

Country: USA

Contact_Voice_Telephone: (404).562.9683

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: C:\DOCUME~1\bcermak\LOCALS~1\Temp\xml96.tmp

Spatial_Data_Organization_Information:

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: 2291

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Complete chain

Point_and_Vector_Object_Count: 6185

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Albers Conical Equal Area

Albers_Conical_Equal_Area:

Standard_Parallel: 27.500000

Standard_Parallel: 37.500000

Longitude_of_Central_Meridian: -90.000000

Latitude_of_Projection_Origin: 25.000000

False_Easting: 0.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.004096

Ordinate_Resolution: 0.004096

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: urbanap020

Entity_Type_Definition:

Urban areas are places where large populations exist

Entity_Type_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1

Range_Domain_Maximum: 2290

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Polygon

Enumerated_Domain_Value_Definition: 2-dimensional element

Enumerated_Domain_Value_Definition_Source: GIS software

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: AREA

Attribute_Definition: Area of polygon in shapefile units.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 44.576

Range_Domain_Maximum: 893676384.05

Attribute:

Attribute_Label: PERIMETER

Attribute_Definition: Perimeter of polygon in shapefile units

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 42.928

Range_Domain_Maximum: 359940.595

Attribute:

Attribute_Label: URBANAP020

Attribute_Definition: Internal feature number

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3049

Range_Domain_Maximum: 6177

Attribute:

Attribute_Label: URBANAP021

Attribute_Definition: User-assigned feature number

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3049

Range_Domain_Maximum: 6177

Attribute:

Attribute_Label: NAME

Attribute_Definition: 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-letter abbreviation for the State in which the county is located.

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, 1987.

Codeset_Source:

U.S. Department of Commerce, National Institute of Standards and Technology

Attribute:

Attribute_Label: STATE_FIPS

Attribute_Definition:

The Federal Information Processing Standard (FIPS) code used by the U.S. Bureau of the Census for the State in which the dam is located.

Attribute_Definition_Source: U.S. Army Corps of Engineers

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 01

Range_Domain_Maximum: 54

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USDA-Forest Service

Contact_Person: Mr. John M. Pye

Contact_Position: Ecologist

Contact_Address:

Address_Type: mailing and physical address

Address: USDA Forest Service, SRS4851

Address: 3041 E. Cornwallis Rd.

City: Research Triangle Park

State_or_Province: NC

Postal_Code: 27709

Country: USA

Contact_Voice_Telephone: (919).549.4013

Contact_Electronic_Mail_Address: jpye@fs.fed.us

Resource_Description: Downloadable Data

Distribution_Liability:

Data Content and Use Disclaimer

The USDA Forest Service, Southern Forest Resource Assessment or SFRA, provides data to users of digital geographic data. The USDA Forest Service is in no way condoning or endorsing the application of these data for any given purpose. It is the sole responsibility of the user to determine whether or not the data is suitable for the intended purpose. It is also the obligation of the user to apply the data in an appropriate and conscientious manner. The USDA Forest Service provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. Much of the USDA Forest Service data is based on and maintained with Arc Info and Arc View Software developed by the Environmental Systems Research Institute (ESRI). In addition, much of the information presented uses conventions and terms popularized by Arc Info and Arc View and their user community. USDA Forest Service in no way represents the interests of ESRI nor acts as an agent for them.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: .shp

Format_Specification: Arc View Shapefile

Format_Information_Content: urbanap020

File_Decompression_Technique: zip file

Transfer_Size: 1.064

Metadata_Reference_Information:

Metadata_Date: 200longleaf8

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USDA-Forest Service

Contact_Person: Mr. John M. Pye

Contact_Position: Ecologist

Contact_Address:

Address_Type: mailing and physical address

Address: USDA Forest Service, SRS4851

Address: 3041 E. Cornwallis Rd.

City: Research Triangle Park

State_or_Province: NC

Postal_Code: 27709

Country: USA

Contact_Voice_Telephone: (919).549.4013

Contact_Electronic_Mail_Address: jpye@fs.fed.us

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Access_Constraints: None

Metadata_Use_Constraints: None

Metadata_Security_Information:

Metadata_Security_Classification_System: None

Metadata_Security_Classification: Unclassified

Metadata_Security_Handling_Description: None

Metadata_Extensions:

Online_Linkage: <http://www.srs.fs.usda.gov/econ>

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile

Assessment Home | Report