FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
VERSION 2003, RELEASED NOVEMBER, 2002.

Geodataset Name:     AIRQUAL_MAINTAREA
Geodataset Type:     Shape
Geodataset Feature:  Polygon

GENERAL DESCRIPTION

This dataset contains the air quality maintenance areas for the Southeast Florida Airshed, Tampa Airshed and Jacksonville Airshed.

DATA SOURCE(S):                     UNITED STATES CENSUS BUREAU
                                    -TIGER/Line Files
SCALE OF ORIGINAL SOURCE MAPS:      1:100,000

DATE OF AUTOMATION OR SOURCE:       1990

GEODATASET EXTENT:                  SOUTHEAST FLORIDA AIRSHED: MIAMI-DADE, BROWARD, 
                                    AND PALM BEACH COUNTIES.
                                    
                                    TAMPA AIRSHED: HILLSBOROUGH AND PINELLAS COUNTIES
                                    
                                    JACKSONVILLE AIRSHED: DUVAL COUNTY

FEATURE ATTRIBUTE TABLES
Data file Name: AIRQUAL_MAINTAREA.DBF

ITEM NAME     WIDTH         TYPE         PRECISION
COUNTY        32           CHARACTER        -
NAME          60          CHARACTER        -

FEATURE ATTRIBUTE TABLES CODES AND VALUES:

Item         Item description

COUNTY         County name

NAME           Maintenance area name.

USER NOTES:

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:

-Reprojected data to FGDL Albers
-Set Precision to DOUBLE
-Set Tolerances to FGDL Standards

REFERENCES:

DATA LINEAGE SUMMARY:

This data layer was acquired from the Florida County Boundary data set. The counties of each maintenance area were first queried from the original data set, where name = "MIAMI-DADE" or name = "BROWARD" or name = "PALM BEACH" or name = "HILLSBOROUGH" or name = "PINELLAS" or name = "DUVAL". The counties were then grouped by their maintenance area in the name field.

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 SOURCE CONTACT (S):

Name:                   UNITED STATES CENSUS BUREAU
Abbr. Name:             USCB
Address:                United States Census Bureau
                        Tiger Mapping Service
                        Washington, D.C.  20233
Phone:                  (301) 457-1128 (Geography)
                        (301) 457-4100 (Customer Service)
Web site:               http://www.census.gov/ftp/pub/geo/www/tiger
                        GIS gateway:
                        http://www.census.gov/geo/www/gis_gateway.html
E-mail:                 Tiger@census.gov
Contact Person:         Products and Services Staff, Geography Division
         Phone:         (301) 457-1128
        E-mail:         Tiger@census.gov

FGDL CONTACT:

Name:                   FLORIDA GEOGRAPHIC DATA LIBRARY
Abbr. Name:             FGDL
Address:                Florida Geographic Data Library
                        431 Architecture Building
                        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