1990 U.S. CENSUS URBANIZED AREAS

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Metadata:


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

Generated by mp version 2.7.3 on Fri Sep 06 14:00:15 2002