FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
VERSION 2006
TITLE: CITIES AND TOWNS
Geodataset Name: CITIES Geodataset Type: SHAPE Geodataset Feature: POINT
GENERAL DESCRIPTION:
This dataset contains cities and towns of Florida. These cities were originally collected from the 1970 National Atlas of the United States. Where applicable, U.S. Census Bureau codes for named populated places were associated with each name to allow additional information to be attached. The Geographic Names Information System (GNIS) was also used as a source for additional information. This is a revised version of the February 2000 data set. DATA SOURCE(S): United States Geological Survey SCALE OF ORIGINAL SOURCE MAPS: 1:2000000 DATE OF AUTOMATION OR SOURCE: 2000 GEODATASET EXTENT: State of Florida
Datafile Name:CITIES.DBF ITEM NAME WIDTH TYPE PRECISION SHAPE 6 SHAPEPOINT 0 FEATURE 27 CHARACTER 0 NAME 48 CHARACTER 0 POP_RANGE_ 21 CHARACTER 0 POP_90 8 DECIMAL 0 POP_98 8 DECIMAL 0 FIPS55 5 CHARACTER 0 COUNTY 55 CHARACTER 0 FIPS 5 CHARACTER 0 STATE 2 CHARACTER 0 STATE_FIPS 2 CHARACTER 0 DISPLAY 1 DECIMAL 0 DESCRIPT 50 CHARACTER 0
FEATURE ATTRIBUTE TABLES CODES AND VALUES:
ITEM ITEM DESCRIPTION
SHAPE Data attribute inherent to the ESRI shapefile format,
which defines the data as a point, polyline, or polygon.
FEATURE The type of city or town.
COUNTY SEAT = A populated place that serves as the seat of
the county government.
STATE CAPITAL COUNTY SEAT = A populated place that serves as
the seat of the State government and the county government.
POPULATED PLACE = A populated place that is neither a county seat,
a State capital, nor the capital of the United States of America.
NAME The name of the city or town.
POP_RANGE_ The population range of the city or town based on 1990 U.S. Census
Bureau data.
UNDETERMINED The population is not known.
0-9,999 The population is less than 10,000.
10,000-49,999 The population is between 10,000 and 49,999.
50,000-99,999 The population is between 50,000 and99,999.
100,000-249,999 The population is between 100,000 and 249,999.
250,000-499,999 The population is between 250,000 and 499,999.
500,000-999,999 The population is between 500,000 and 999,999.
1,000,000-1,999,999 The population is between 1,000,000 and 9,999,999.
POP_90 The 1990 population of the city or town; a value of -99999 means
the population is not known. (A 1998 estimated population value
may be available for places where the 1990 population value is
unknown.)
POP_98 The 1998 estimated population of the city or town; a value of
-99999 means the population is not known. (A 1990 population value
may be available for place where the 1998 estimated population
value is unknown.)
FIPS55 The 5-digit FIPS code of the named populated place, primary
county division, or other locational entity of the United
States.
COUNTY The name of the county or county equivalent.
FIPS The 5-digit FIPS code of the county or county equivalent.
STATE The 2-character FIPS code of the State or State equivalent.
STATE_FIPS The 2-digit FIPS code of the State or State equivalent.
DISPLAY A value used to specify whether a place name text label will be
shown at the most detailed display scale in the National Atlas map
browser. It is determined by a ratio based on population size and
distance to nearest town and was set by the following steps: 1.
Distance to the nearest neighbor was calculated for each populated
place. 2. Population density was calculated by adding the 1990
population values for each county and then dividing the total by
the area of the county. The 1990 population values of -99999 were
set to 1. 3. A display ratio was calculated using the formula
1990 Population x Distance / Population Density. 4. Display was
set to 1 for all points with a minimum result of 15000, and set to
0 for the remainder of points.
DESCRIPT Calculated = to 'NAME'
USER NOTES:
The 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. A note concerning data scale: Scale is an important factor in data usage. 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
FGDL QUALITY ASSURANCE STATUS:
-Projected data to FGDL Albers HPGN (See "Map Projection Parameters" below). -Clipped to State of Florida -DESCRIPT item was added based on city or town name -Upcased all character items -Dropped items: Area, Perimeter and CITIESX020
REFERENCES:
United States Geological Survey
DATA LINEAGE SUMMARY:
The data was orginally produced as U.S. Geological Survey, 1995, 1:2,000,000-scale Digital Line Graphs. The data was then downloaded by the GeoPlan Center in shapefile format from http://mrdata.usgs.gov/sddpftp.html in 2001. When received, the data was in Geodetic Lat Long, Datum: NAD83, Spheroid: GRS1980, Units: Decimal degrees. The data was reprojected, clipped to the State of Florida boundary, the DESCRIPT item was added based on city/town name, all character items were upcased, and the following items were dropped from the attibute table: Area, Perimeter, and Citiesx020.
MAP PROJECTION PARAMETERS:
Projection ALBERS Units METERS Datum HPGN Spheroid GRS1980 1st standard parallel 24 0 0.000 2nd standard parallel 31 30 0.000 Central meridian -84 0 0.000 Latitude of projection's origin 24 0 0.000 False easting (meters) 400000.00000 False northing (meters) 0.00000
DATA SOURCES CONTACT(S):
Name: United States Geological Survey
Abbr.name: USGS
Address: 521 National Center Reston, VA 20192
Phone: 703-648-5175
Web site: http://mrdata.usgs.gov/sddpftp.html
Email: atlasmail@usgs.gov
Contact Person: Gita Urban-Mathieux
Phone: 703-648-5175
Email: atlasmail@usgs.gov
FGDL CONTACT:
Name: Florida Geographic Data Library
Abbr. Name: FGDL
Address: Florida Geographic Data Library
431 Architecture
PO Box 115706
Gainesville, FL 32611-5706
Web site: http://www.fgdl.org
Contact FGDL:
Technical Support: http://www.fgdl.org/fgdlfeed.html
FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html
FGDL Mailing Lists: http://www.fgdl.org/fgdl-l.html
For FGDL Software: http://www.fgdl.org/software.html