1990 U.S. CENSUS URBANIZED AREAS

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: U.S. Census Bureau, Geography Division

Publication_Date: 20010718 revised 20011207

Title: 1990 U.S. CENSUS URBANIZED AREAS

Geospatial_Data_Presentation_Form: shapefile

Other_Citation_Details: State of Florida

Online_Linkage: <http://www.census.gov/geo/www/ua/ua_bdfile.html>

Description:

Abstract:

This dataset contains boundaries for Urbanized Areas as defined by the U.S. Census Bureau for the State of Florida. (see user notes)

Purpose: For reference of Urbanized Areas in the State of Florida.

Supplemental_Information: POLYGON

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20010718 revised 20011207

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -87.429040

East_Bounding_Coordinate: -79.872251

North_Bounding_Coordinate: 30.983191

South_Bounding_Coordinate: 24.492815

Keywords:

Theme:

Theme_Keyword_Thesaurus: NONE

Theme_Keyword: Urban Areas

Theme_Keyword: 1990

Theme_Keyword: US Census

Place:

Stratum:

Temporal:

Access_Constraints: NONE

Use_Constraints: NONE

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Florida Geographic Data Library (FGDL)

Contact_Address:

Address_Type: mailing address

Address: 431 Architecture PO Box 115706

City: Gainesville

State_or_Province: FL

Postal_Code: 32611-5706

Contact_Electronic_Mail_Address: Technical Support: <http://www.fgdl.org/fgdlfeed.html>

Contact_Electronic_Mail_Address:

FGDL Frequently Asked Questions: <http://www.fgdl.org/fgdlfaq.html>

Contact_Electronic_Mail_Address: FGDL Mailing Lists: <http://www.fgdl.org/fgdl-l.html>

Contact_Electronic_Mail_Address: For FGDL Software: <http://www.fgdl.org/software.html>

Contact_Electronic_Mail_Address: Web site: <http://www.fgdl.org>

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 2; ESRI ArcCatalog 8.2.0.700

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Relied on the integrity of the attribute information within the original data layer.

Quantitative_Attribute_Accuracy_Assessment:

Attribute_Accuracy_Explanation:

An urbanized area (UA) consists of densely settled territory that contains 50,000 or more people. A UA may contain both place and nonplace territory. The U.S. Census Bureau delineates UAs to provide a better separation of urban and rural territory, population, and housing in the vicinity of large places. At least 35,000 people in a UA must live in an area that is not part of a military reservation.

Quantitative_Attribute_Accuracy_Assessment:

Attribute_Accuracy_Explanation:

For Census 2000, UA delineations constitute a "zero-based" approach that requires no "grandfathering" of UA boundaries from the 1990 census. Because of the more stringent density requirements (and the less restrictive extended place criteria), some territory that was classified as urbanized for the 1990 census has been reclassified as rural. In addition, some areas that were identified as UAs for the 1990 census have been reclassified as urban clusters.

Quantitative_Attribute_Accuracy_Assessment:

Attribute_Accuracy_Explanation:

The title of a UA may contain up to three incorporated place names, and will include the two-letter U.S. Postal Service abbreviation for each state into which the UA extends. However, if the UA does not contain an incorporated place, the UA title will include the single name of the geographic entity that occurs first from the following list: census designated place, minor civil division, or populated place recognized by the U.S. Geological Survey.

Quantitative_Attribute_Accuracy_Assessment:

Attribute_Accuracy_Explanation:

Each UA is assigned a five-digit census code in alphabetical sequence on a nationwide basis, interspersed with the codes for urban clusters (UCs), also in alphabetical sequence. For the 1990 census, the U.S. Census Bureau assigned a four-digit UA code based on the MA codes. For Census 2000, a separate flag is included in data tabulation files to differentiate between UAs and UCs. In printed reports, this differentiation is included in the name.

Quantitative_Attribute_Accuracy_Assessment:

Attribute_Accuracy_Explanation:

The preceding was taken from the census UA metadata website: <http://www.census.gov/geo/www/cob/ua_metadata.html>

Quantitative_Attribute_Accuracy_Assessment:

Attribute_Accuracy_Explanation:

Certain scale datasets are not suitable for some project, analysis, or modelling purposes. Please be sure you are using the best available data.

1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:250000 scale datasets are recommended for projects that are at the regional or state level or larger.

Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analyses. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our web pages at:

<http://www.geoplan.ufl.edu/education.html> These data are based on interpretation of available information and should not be construed as legally binding.

Logical_Consistency_Report:

Relied on the integrity of the attribute information within the original data layer.

Completeness_Report:

Relied on the integrity of the attribute information within the original data layer.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Census Bureau, Geography Division

Publication_Date: 20010718 revised 20011207

Title: 1990 U.S. CENSUS URBANIZED AREAS

Source_Scale_Denominator: VARIABLE

Type_of_Source_Media: MAP

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20010718 revised 20011207

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: US CENSUS

Source_Contribution: Spatial and Attribute Information

Process_Step:

Process_Description:

This dataset was downloaded in shapefile format from the US Census website (<http://www.census.gov/geo/www/cob/bdy_files.html>). Since it was the continetal United States, items in the extent of Florida were selected then exported to a shapefile. The shapefile was then reprojected to FGDL Albers. Old internal coverage items UA99_D90#, and UA99_D90_ID were deleted. Also the records of internal polygons that contained no data were deleted. XTools extension in ArcView was used to update polygon area and perimeter in meters.

Process_Date: 2002

Process_Step:

Process_Description:

GeoPlan, during the QA/QC process included the following aspects: (1) Reprojected data to FGDL Albers HPGN (See "Map Projection Parameters" below) (2) Upcased all character records (3) Changed original file name from "Ua99_d90" to "ua1990" (4) DESCRIPT item was added based on the item NAME (5) Dropped old internal coverage items: UA99_D90#, UA99_D90_ID (6) Deleted records of internal polygons that contained no data (7) Updated polygon area and perimeter in meters.

Process_Date: 2002

Process_Step:

Process_Description:

The dataset's prior history from the US Census is as follows:

The cartographic boundary files are a generalized extract from the U.S. Census Bureau's TIGER database. Line simplification/smoothing was performed with a tolerance of 0.005 decimal degrees and a coordinate reduction using the Douglas-Peucker method with a tolerance of 0.0003 decimal degrees. Very small polygons were eliminated when the combination of geographic codes existed elsewhere. The geography was clipped back to the shoreline of the United States, in contrast to TIGER/Line® which shows the full extent of geography out to the 3-mile limit.

Process_Date: 20010718 revised 20011207

Process_Step:

Process_Description:

These generalized cartographic boundary files are originally produced to support the spatial geographic infrastructure for certain mapping functions within the Census Bureau's American Fact Finder and in support of the LandView Geographic Data Viewer. The generalized files have a much smaller file size than the original file extraction from the Census Bureau's TIGER database, resulting in faster download and processing times.

Process_Date: 20010718 revised 20011207

Process_Step:

Process_Description:

Limitations Because of coordinate thinning: Cartographic boundary files should not be used for geocoding; Some offshore, redundant, zero population and housing land areas may be absent from the files; Cartographic Boundary files are not necessarily vertically integrated with previous boundary file sets. This dataset was originally in the projection GCS Lat/Lon with a Datum of NAD27. The file was available from the website "unprojected".

Process_Date: 20010718 revised 20011207

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: 33

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Albers Conical Equal Area

Albers_Conical_Equal_Area:

Standard_Parallel: 24 0 0.000

Standard_Parallel: 31 30 0.000

Longitude_of_Central_Meridian: -84 0 0.000

Latitude_of_Projection_Origin: 24 0 0.000

False_Easting: 400000.00000

False_Northing: 0.000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.002048

Ordinate_Resolution: 0.002048

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: D_North_American_1983_HARN

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: ua1990

Entity_Type_Definition: .DBF file

Entity_Type_Definition_Source: FGDL

Attribute:

Attribute_Label: FID

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: Shape

Attribute_Definition:

Data attribute inherent to the ESRI shapefile format, which defines the data as a point, polyline, or polygon.

Attribute_Definition_Source: FGDL

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: AREA

Attribute_Definition: Area of polygon in square meters

Attribute_Definition_Source: US CENSUS

Attribute:

Attribute_Label: PERIMETER

Attribute_Definition: Perimeter of polygon in square meters

Attribute_Definition_Source: US CENSUS

Attribute:

Attribute_Label: UA

Attribute_Definition: UA/UC 5 digit code

Attribute_Definition_Source: US CENSUS

Attribute:

Attribute_Label: NAME

Attribute_Definition: Name of UA/UC

Attribute_Definition_Source: US CENSUS

Attribute:

Attribute_Label: DESCRIPT

Attribute_Definition: FGDL added item based on NAME

Attribute_Definition_Source: FGDL

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Florida Geographic Data Library (FGDL)

Contact_Address:

Address_Type: mailing address

Address: 431 Architecture PO Box 115706

City: Gainesville

State_or_Province: FL

Postal_Code: 32611-5706

Contact_Electronic_Mail_Address: Technical Support: <http://www.fgdl.org/fgdlfeed.html>

Contact_Electronic_Mail_Address:

FGDL Frequently Asked Questions: <http://www.fgdl.org/fgdlfaq.html>

Contact_Electronic_Mail_Address: FGDL Mailing Lists: <http://www.fgdl.org/fgdl-l.html>

Contact_Electronic_Mail_Address: For FGDL Software: <http://www.fgdl.org/software.html>

Contact_Electronic_Mail_Address: Web site: <http://www.fgdl.org>

Resource_Description: Downloadable Data

Distribution_Liability:

Florida Geographic Data Library is a product of the University of Florida GeoPlan Center with support from the Florida Department of Transportation and the Florida Department of Environmental Protection. THE FGDL DATA AS PROVIDED BY CONTRIBUTING ORGANIZATIONS AND ANY PROGRAMMING SOFTWARE CREATED BY THE UNIVERSITY OF FLORIDA GEOPLAN CENTER (COLLECTIVELY THE "MATERIALS") ARE COPYRIGHTED BY THE UNIVERSITY OF FLORIDA GEOPLAN CENTER FOR THE FGDL CONTRIBUTING AGENCIES AND ORGANIZATIONS (THE "DATA PROVIDERS"). DO NOT REPRODUCE, REDISTRIBUTE OR RESELL THE MATERIALS, OR PROVIDE THE MATERIALS FOR FREE TO CUSTOMERS OR CLIENTS, OR PLACE THE MATERIALS FOR DOWNLOAD ON A WEBSITE. ADDITIONALLY, WHEN USING FGDL DATA OR SOFTWARE IN PROJECTS, MAPS, ETC.; YOU AGREE TO ACKNOWLEDGE THE FGDL AS A DATA SOURCE. THE MATERIALS ARE PROVIDED "AS IS". THE UNIVERSITY OF FLORIDA GEOPLAN CENTER MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE QUALITY OR SUITABILITY OF THE MATERIALS, EITHER EXPRESSLY OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER MAKES NO WARRANTIES, GUARANTIES OR REPRESENTATIONS AS TO THE TRUTH, ACCURACY OR COMPLETENESS OF THE DATA PROVIDED BY THE FGDL CONTRIBUTING ORGANIZATIONS. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED AS A RESULT OF USING, MODIFYING, CONTRIBUTING OR DISTRIBUTING THE MATERIALS.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 0.115

Metadata_Reference_Information:

Metadata_Date: 20020827

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Census Bureau

Contact_Address:

Address_Type: mailing address

Address: 8903 Presidential Parkway, Room 303 WP I

City: Marlboro

State_or_Province: Maryland

Postal_Code: 20772

Contact_Voice_Telephone: 301/457-1128

Contact_Electronic_Mail_Address: tiger@census.gov

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