FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION

TITLE: CENSUS BLOCK GROUP CENTROIDS, 1980

Geodataset Name:      CBG1980
Geodataset Type:      SHAPE
Geodataset Feature:   POINT

GENERAL DESCRIPTION:

This dataset contains Census Block Group centroid points as they
are defined by the Bureau of the Census. Census block groups are
geographic entities within the same census tract. Block groups
usually contain between 250 and 550 housing units.

DATA SOURCE(S):                   U.S. Bureau of the Census: 
                                  Spatial Patterns of Socioeconomic Data from 1970 to 2000


SCALE OF ORIGINAL SOURCE MAPS:    1:100,000


DATE OF AUTOMATION OR SOURCE:     1999


GEODATASET EXTENT:                State of Florida

FEATURE ATTRIBUTE TABLES:
Datafile Name:CBG1980.DBF

ITEM NAME   WIDTH      TYPE          PRECISION

SHAPE         6        SHAPEPOINT        0     
CENS80ID     22        CHARACTER         0     
STATE         2        DECIMAL           0     
COUNTY        3        DECIMAL           0              
PLACE         4        DECIMAL           0              
TRACTBNA      6        DECIMAL           0  
BG            1        DECIMAL           0      
ED_CODE       6        CHARACTER         0     
LAT_DD       15        DECIMAL           4     
LON_DD       17        DECIMAL           4    
LLSRCE        1        CHARACTER         0 
LL_FLAG       1        CHARACTER         0     
FIPS          5        DECIMAL           0     
UNIQUE        4        DECIMAL           0      
EDASUBEDA     5        CHARACTER         0     
DR_CODE       1        CHARACTER         0   
HUC           8        DECIMAL           0     
C80POPUL      5        DECIMAL           0     
C80URBN       5        DECIMAL           0 
C80NURBN      5        DECIMAL           0      
C80RNFAR      5        DECIMAL           0      
C80RFARM      4        DECIMAL           0              
C80WHITE      5        DECIMAL           0 
C80BLACK      5        DECIMAL           0 
C80OTHER      4        DECIMAL           0      
C80ENGLI      5        DECIMAL           0  
C80SPANI      4        DECIMAL           0 
C80HLOTH      4        DECIMAL           0     
C80AGE1       4        DECIMAL           0      
C80AGE2       4        DECIMAL           0     
C80AGE3       3        DECIMAL           0      
C80AGE4       3        DECIMAL           0      
C80AGE5       4        DECIMAL           0      
C80AGE6       4        DECIMAL           0     
C80AGE7       3        DECIMAL           0       
C80AGE8       3        DECIMAL           0    
C80AGE9       3        DECIMAL           0     
C80AGE10      4        DECIMAL           0            
C80AGE11      4        DECIMAL           0      
C80AGE12      4        DECIMAL           0      
C80AGE13      4        DECIMAL           0    
C80AGE14      4        DECIMAL           0 
C80AGE15      4        DECIMAL           0   
C80AGE16      4        DECIMAL           0 
C80AGE17      4        DECIMAL           0 
C80AGE18      4        DECIMAL           0   
C80AGE19      4        DECIMAL           0      
C80AGE20      3        DECIMAL           0      
C80AGE21      4        DECIMAL           0 
C80AGE22      4        DECIMAL           0  
C80AGE23      4        DECIMAL           0 
C80MALE       5        DECIMAL           0   
C80FEMA       5        DECIMAL           0 
C80FI1        4        DECIMAL           0 
C80FI2        4        DECIMAL           0    
C80FI3        4        DECIMAL           0  
C80FI4        4        DECIMAL           0   
C80FI5        4        DECIMAL           0  
C80FI6        4        DECIMAL           0   
C80NCOLL      4        DECIMAL           0  
C80COLLE      4        DECIMAL           0
C80EDUC1      4        DECIMAL           0 
C80EDUC2      4        DECIMAL           0
C80EDUC3      4        DECIMAL           0 
C80EDUC4      4        DECIMAL           0 
C80OCCU1      4        DECIMAL           0 
C80OCCU2      4        DECIMAL           0 
C80OCCU3      4        DECIMAL           0
C80OCCU4      4        DECIMAL           0   
C80OCCU5      4        DECIMAL           0 
C80OCCU6      3        DECIMAL           0 
C80OCCU7      4        DECIMAL           0 
C80OCCU8      4        DECIMAL           0
C80OCCU9      3        DECIMAL           0
C80INDU1      3        DECIMAL           0
C80INDU2      3        DECIMAL           0    
C80INDU3      4        DECIMAL           0
C80INDU4      4        DECIMAL           0
C80INDU5      3        DECIMAL           0
C80INDU6      4        DECIMAL           0
C80INDU7      4        DECIMAL           0      
C80INDU8      4        DECIMAL           0 
C80INDU9      4        DECIMAL           0 
C80IND10      4        DECIMAL           0
C80IND11      4        DECIMAL           0  
C80ABOVE      5        DECIMAL           0    
C80BELOW      4        DECIMAL           0   
C80NATIV      5        DECIMAL           0
C80FOREI      5        DECIMAL           0
C80FHOUS      5        DECIMAL           0     
C80GQUAR      5        DECIMAL           0    
C80ALLFA      5        DECIMAL           0      
C80FAWFH      4        DECIMAL           0    
C80M14YR      5        DECIMAL           0
C80F14YR      5        DECIMAL           0
C80SHOUS      5        DECIMAL           0
C80DHOUS      5        DECIMAL           0  
C80ABROA      4        DECIMAL           0  
C80MLFOR      5        DECIMAL           0   
C80MNLFO      4        DECIMAL           0
C80FLFOR      4        DECIMAL           0 
C80FNLFO      4        DECIMAL           0     
C80INCO1      4        DECIMAL           0
C80INCO2      5        DECIMAL           0      
C80INCO3      4        DECIMAL           0     
C80INCO4      4        DECIMAL           0    
C80INCO5      4        DECIMAL           0    
C80INCO6      3        DECIMAL           0   
C80FHABO      4        DECIMAL           0     
C80FHBEL      4        DECIMAL           0      
C80FABOV      4        DECIMAL           0    
C80FBELO      4        DECIMAL           0     
C80OWNER      4        DECIMAL           0      
C80RENTE      4        DECIMAL           0    
C80TSTR1     14        CHARACTER         0      
C80TSTR2      4        DECIMAL           0
C80TSTR3      4        DECIMAL           0   
C80TSTR4      5        DECIMAL           0 
C80TSTR5      4        DECIMAL           0     
C80GREN1      4        DECIMAL           0     
C80GREN2      4        DECIMAL           0    
C80GREN3      4        DECIMAL           0     
C80GREN4      4        DECIMAL           0      
C80GREN5      4        DECIMAL           0    
C80TELE1      4        DECIMAL           0   
C80TELE2      4        DECIMAL           0 
C80TELE3      4        DECIMAL           0      
C80TELE4      4        DECIMAL           0      
C80AUTO1      4        DECIMAL           0      
C80AUTO2      4        DECIMAL           0  
C80AUTO3      4        DECIMAL           0      
C80HEAT1      4        DECIMAL           0     
C80HEAT2      3        DECIMAL           0     
C80HEAT3      4        DECIMAL           0     
C80HEAT4      4        DECIMAL           0     
C80HEAT5      4        DECIMAL           0        
SL            2        DECIMAL           0      
C80COOK1      4        DECIMAL           0     
C80COOK2      4        DECIMAL           0     
C80COOK3      4        DECIMAL           0 
C80COOK4      3        DECIMAL           0 
C80COOK5      4        DECIMAL           0   
DESCRIPT      5        DECIMAL           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.

CENS80ID        CENSUS 1980 BLOCK GROUP IDENTIFIER

STATE           STATE

COUNTY          COUNTY

PLACE           PLACE

TRACTBNA        CENSUS TRACT/BNA

BG              BLOCK GROUP

ED_CODE         ENUMERATION DISTRICT

LAT_DD          LATITUDE IN DECIMAL DEGREES

LON_DD          LONGITUDE IN DECIMAL DEGREES

LLSRCE          LATITUDE/LONGITUDE SOURCE CODE

LL_FLAG         LATITUDE/LONGITUDE QUALITY CONTROL FLAG CODE

FIPS            FIPS CODE

UNIQUE          CAF UNIQUE CODE

EDASUBEDA       SUB-WATERSHED EDA/CDA/FDA CODE

DR_CODE         EDA/FDA FLAG

HUC             HUC CODE

C80POPUL        1980 TOTAL POPULATION

C80URBN         1980 URBAN POPULATION

C80NURBN        1980 NONURBAN POPULATION

C70RNFAR        1980 RURAL NO FARM POPULATION

C70RFARM        1980 RURAL FARM POPULATION

C80WHITE        1980 WHITE POPULATION

C80BLACK        1980 BLACK POPULATION

C80OTHER        1980 OTHER POPULATION

C80ENGLI        1980 ENGLISH LANGUAGE POPULATION

C80SPANI        1980 SPANISH LANGUAGE POPULATION

C80HLOTH        1980 OTHER LANGUAGE POPULATION

C80AGE1         1980 PERSONS UNDER 2 YEARS

C80AGE2         1980 PERSONS 3 TO 4 YEARS

C80AGE3         1980 PERSONS 5 YEARS

C80AGE4         1980 PERSONS 6 YEARS

C80AGE5         1980 PERSONS 7 TO 9 YEARS

C80AGE6         1980 PERSONS 10 TO 13 YEARS

C80AGE7         1980 PERSONS 14 YEARS

C80AGE8         1980 PERSONS 15 YEARS

C80AGE9         1980 PERSONS 16 YEARS

C80AGE10        1980 PERSONS 17 YEARS

C80AGE11        1980 PERSONS 18 YEARS

C80AGE12        1980 PERSONS 19 YEARS

C80AGE13        1980 PERSONS 20 YEARS

C80AGE14        1980 PERSONS 21 YEARS

C80AGE15        1980 PERSONS 22 TO 24 YEARS

C80AGE16        1980 PERSONS 25 TO 34 YEARS

C80AGE17        1980 PERSONS 35 TO 44 YEARS

C80AGE18        1980 PERSONS 45 TO 54 YEARS

C80AGE19        1980 PERSONS 55 TO 59 YEARS

C80AGE20        1980 PERSONS 60 TO 61 YEARS

C80AGE21        1980 PERSONS 62 TO 64 YEARS

C80AGE2         1980 PERSONS 65 TO 74 YEARS

C80AGE23        1980 PERSONS 75 AND OVER YEARS

C80MALE         1980 MALE POPULATION

C80FEMA         1980 FEMALE POPULATION

C80FI1          1980 FAMILY INCOME LESS THAN $ 5,000

C80FI2          1980 FAMILY INCOME $ 5,000 TO $ 9,999

C80FI3          1980 FAMILY INCOME $ 10,000 TO $ 14,999

C80FI4          1980 FAMILY INCOME $ 15,000 TO $ 24,999

C80FI5          1980 FAMILY INCOME $ 25,000 TO $ 49,999

C80FI6          1980 FAMILY INCOME $ 50,000 AND OVER

C80NCOLL        1980 PERSONS IN NO COLLEGE (NURSERY, KINDERGARTEN, ELEMENTARY, AND HIGH SCHOOL)

C80COLLE        1980 PERSONS IN COLLEGE

C80EDUC1        1980 PERSONS LESS THAN 12TH GRADE

C80EDUC2        1980 PERSONS HIGH SCHOOL GRADUATE

C80EDUC3        1980 PERSONS COLLEGE 1 TO 3 YEARS (SOME COLLEGE, ASSOCIATE DEGREE)

C80EDUC4        1980 PERSONS COLLGE 4 YEARS OR MORE (BACHELLORS OR GRADUATE DEGREE)

C80OCCU1        1980 PROFESSIONAL, TECHNICAL AND KINDRED WORKERS (PROF. AND SPECIALTY, TECH. AND RELATED SUPPORT)

C80OCCU2        1980 EXECUTIVE-ADMINISTRATIVE-MANAGERIAL (FARMERS AND FARM MANAGERS, MANAGERS, OFF. & PROPRIETORS)

C80OCCU3        1980 CLERICAL AND KINDRED WORKERS (ADMINISTRATIVE SUPPORT, INCLUDING CLERICAL)

C80OCCU4        1980 SALES WORKERS

C80OCCU5        1980 CRAFTSMEN, FOREMEN, AND KINDRED WORKERS (PRECISION PRODUCTION-CRAFT REPAIR)

C80OCCU6        1980 OPERATIVES AND KINDRED WORKERS (MACHINE OPERATORS-ASSEMBLERS-INSPECTORS)

C80OCCU7        1980 SERVICE WORKERS INCLUDING PRIVATE HOUSEHOLD (PRIV. HOUSEHOLD SERV., PROTECTIVE SERV., OTHER SERV.)

C80OCCU8        1980 FARM LABORERS AND FARM FOREMEN (FARMING-FORESTRY-FISHING)

C80OCCU9        1980 LABORERS EXCEPT FARM AND MINE (TRANSPORTATION AND MATERIAL MOVING)

C80INDU1        1980 CONSTRUCTION

C80INDU2        1980 MANUFACTURING OF NON-DURABLE GOODS

C80INDU3        1980 MANUFACTURING OF DURABLE GOODS

C80INDU4        1980 TRANSPORTATION

C80INDU5        1980 COMMUNICATIONS AND OTHER PUBLIC UTILITIES

C80INDU6        1980 WHOLESALE AND RETAIL TRADE

C80INDU7        1980 FINANCE, INSURANCE, BUSINESS, AND REPAIR

C80INDU8        1980 OTHER PROFESSIONAL AND RELATED SERVICES

C80INDU9        1980 EDUCATIONAL SERVICES

C80IND10        1980 PUBLIC ADMINISTRATION

C80IND11        1980 OTHER INDUSTRIES

C80ABOVE        1980 ABOVE POVERTY LINE

C80BELOW        1980 BELOW POVERTY LINE

C80NATIV        1980 NATIVE OF NATIVE OR FOREIGN PARENTS

C80FOREI        1980 FOREIGN BORN

C80FHOUS        1980 FAMILY HOUSING

C80GQUAR        1980 GROUP QUARTERS

C80ALLFA        1980 ALL FAMILIES

C80FAWFH        1980 FAMILIES WITH FEMALE HEAD

C80M14YR        1980 MALE
	
C80F14YR        1980 FEMALE

C80SHOUS        1980 SAME HOUSE

C80DHOUS        1980 DIFFERENT HOUSE

C80ABROA        1980 ABROAD

C80MLFOR        1980 MALES IN LABOR FORCE

C80MNLFO        1980 MALES NOT IN LABOR FORCE

C80FLFOR        1980 FEMALES IN LABOR FORCE

C80FNFLO        1980 FEMALES NOT IN LABOR FORCE

C80INCO1        1980 INCOME $ < 5,000

C80INCO2        1980 INCOME $5,000-$9,999

C80INCO3        1980 INCOME $10,000-$14,999

C80INCO4        1980 INCOME $15,000-$24,999

C80INCO5        1980 INCOME $25,000-$49,999

C80INCO6        1980 INCOME  > $50,000

C80FHABO        1980 ABOVE POVERTY LEVEL

C80FHBEL        1980 BELOW POVERTY LEVEL

C80FABOV        1980 ABOVE POVERTY LEVEL

C80FBELO        1980 BELOW POVERTY LEVEL

C80OWNER        1980 OWNER OCCUPIED

C80RENTE        1980 RENTER OCCUPIED

C80TSTR1        1980 TENURE IN 1-UNIT STRUCTURE

C80TSTR2        1980 TENURE IN 2-UNIT STRUCTURE

C80TSTR3        1980 TENURE IN 3-4-UNIT STRUCTURE

C80TSTR4        1980 TENURE IN 5 OR MORE-UNIT STRUCTURE

C80TSTR5        1980 TENURE IN MOBILE HOMES, TRAILERS, OTHERS

C80GREN1        1980 MONTHLY GROSS RENT < $100

C80GREN2        1980 MONTHLY GROSS RENT $100-$199

C80GREN3        1980 MONTHLY GROSS RENT $200-$299

C80GREN4        1980 MONTHLY GROSS RENT > $300

C80GREN5        1980 MONTHLY GROSS RENT (NO CASH RENT)

C80TELE1        1980 OWNER OCCUPIED, TELEPHONE AVAILABLE

C80TELE2        1980 OWNER OCCUPIED, TELEPHONE NOT  AVAILABLE

C80TELE3        1980 RENTER OCCUPIED, TELEPHONE AVAILABLE

C80TELE4        1980 RENTER OCCUPIED, TELEPHONE NOT  AVAILABLE

C80AUTO1        1980 TOTAL OCCUPIED-1 AUTOMOBILE

C80AUTO2        1980 TOTAL OCCUPIED-2 AUTOMOBILE

C80AUTO3        1980 TOTAL OCCUPIED-3 OR MORE  AUTOMOBILES

C80HEAT1        1980 UTILITY GAS

C80HEAT2        1980 BOTTLE, TANK, OR LP GAS

C80HEAT3        1980 ELECTRICITY

C80HEAT4        1980 OTHERS

C80HEAT5        1980 NO FUEL USED

SL              NOT DEFINED BY SOURCE           

C80COOK1        NOT DEFINED BY SOURCE  
    
C80COOK2        NOT DEFINED BY SOURCE
     
C80COOK3        NOT DEFINED BY SOURCE     
 
C80COOK4        NOT DEFINED BY SOURCE    
 
C80COOK5        NOT DEFINED BY SOURCE    
   
DESCRIPT        FGDL ADDED ITEM BASED ON THE ITEM C80POPUL 

USER NOTES:


The centroids from this dataset are taken from a CD supplied by
the U.S. Census Bureau entitled "Spatial Patterns of
Socioeconomic Data from 1970 to 2000".  The CD was created to
provide a source of time-series geo-referenced socioeconmic
data.  The census data was orginally used by NOAA to incorporate
into their Coastal Assessment Framework (CAF).  It is important
to note that the centroids are accurate for the most part,
however, should not be used for small scale studies.  The data
is designed for regional and state wide research.


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.

FGDL QUALITY ASSURANCE STATUS:


-Reprojected data to FGDL Albers HPGN (See "Map Projection Parameters" below)
-Upcased all character records
-DESCRIPT item was added based on the item C80POPUL

DATA LINEAGE SUMMARY:


This data was orginally taken from the U.S. Census Bureau CD
entitled "Spatial Patterns of Socioeconomic Data from 1970 to
2000".  The data was taken from the CD in text file format.  The
text file was converted to a dbf and a shapefile was created in
ArcMap 8.2 by using the add XY command based on the decimal
degree coordinates included in the table.  The shapefile was
then projected from geographic nad27 to albers hpgn.

MAP PROJECTION PARAMETERS:


Projection                          ALBERS
Datum                               HPGN
Units                               METERS
Spheroid                            GRS1980
1st Standard Parallel               24  0  0.000
2nd Standard Parallel               31 30  0.000
Central Meridian                   -84 00  0.000
Latitude of Projection's Origin     24  0  0.000
False Easting (meters)              400000.00000
False Norting (meters)              0.00000

DATA SOURCES CONTACT(S):


Name: U.S. Bureau of the Census Geographic Division				 
Address: Washington,  DC 20233									
Phone: 301-457-1056			
Web site: CD		
Contact Person: Geo-Spatial Research and Standards Staff

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