onemap_prod.SDEADMIN.cenbg00

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Frequently-anticipated questions:

What does this data set describe?

Title: onemap_prod.SDEADMIN.cenbg00
Abstract:
The NC Center for Geographic Information and Analysis, using TIGER/line 2000 files and statistics from the US Department of Commerce/Bureau of the Census, developed the GIS 2000 Census Block Group data sets for each of the 100 counties in North Carolina and combined the data into one statewide coverage.
Supplemental_Information: 
system filename : bg2000    file size = 7.78 mb

Revisions and updates to this layer include:
1) filename: bg2000    The 4/17/02 version was the first verion
of this data.
  1. How should this data set be cited?

    US Department of Commerce, Bureau of the Census, 20020417, onemap_prod.SDEADMIN.cenbg00: US Department of Commerce, Bureau of the Census, Washington, DC.

    Online Links:

    Other_Citation_Details: NCCGIA distributes this dataset

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -84.422155
    East_Bounding_Coordinate: -75.355690
    North_Bounding_Coordinate: 36.617235
    South_Bounding_Coordinate: 33.641965

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Calendar_Date: REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground.
    Currentness_Reference: Data creation and finalization dates

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: vector digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      Indirect_Spatial_Reference: None
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • G-polygon (5277)
      • GT-polygon composed of chains (5278)
      • Node, planar graph (9612)
      • Area point (5277)

    2. What coordinate system is used to represent geographic features?

      Grid_Coordinate_System_Name: State Plane Coordinate System 1983
      State_Plane_Coordinate_System:
      SPCS_Zone_Identifier: 3200
      Lambert_Conformal_Conic:
      Standard_Parallel: 34.333333
      Standard_Parallel: 36.166667
      Longitude_of_Central_Meridian: -79.000000
      Latitude_of_Projection_Origin: 33.750000
      False_Easting: 609601.220000
      False_Northing: 0.000000

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.001890
      Ordinates (y-coordinates) are specified to the nearest 0.001890
      Planar coordinates are specified in meters

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.

      Vertical_Coordinate_System_Definition:
      Altitude_System_Definition:
      Altitude_Resolution: 1.000000
      Altitude_Encoding_Method:
      Explicit elevation coordinate included with horizontal coordinates

  7. How does the data set describe geographic features?

    onemap_prod.SDEADMIN.cenbg00
    2000 Census Block Groups processed from TIGER/Line files from the US Department of Commerce, Bureau of the Census; statistics from Census 2000 Summary File 1 (Source: Bureau of the Census)

    OBJECTID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    SHAPE.len

    HH_SIZE_OW
    Average Household Size (Owner-Occupied Units) (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    PERIMETER
    Total perimeter in coverage units (Source: Software computed)

    Frequency of measurement: None planned

    Range of values
    Minimum:91.537
    Maximum:2,170,780.000
    Units:linear meters
    Resolution:0.001

    BGROUP
    Block group 12-digit code (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Block group varies.

    TOTAL_POP
    Total population within block group (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Total population varies.

    POP_1RACE
    Population comprised of single race (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    WHITE_ONLY
    White population within block group (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    BLACK_ONLY
    Black or African American population within block group (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    AMIND_ONLY
    American Indian or Alaska Native population within block group (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    ASIAN_ONLY
    Asian population within block group (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    HWPAC_ONLY
    Native Hawaiian/Other Pacific Islander population within block group (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    OTHER_ONLY
    Population of other races within block group (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    POP_2RACES
    Population comprised of multiple races (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    HISPANIC
    Hispanic/Latino population within block group (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    MALE
    Male population within block group (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    FEMALE
    Female population within block group (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P_UNDER_5
    Block group population under age 5 (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P5_TO_9
    Block group population in age range 5 to 9 (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P10_TO_14
    Block group population in age range 10 to 14 (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P15_TO_19
    Block group population in age range 15 to 19 (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P20_TO_24
    Block group population in age range 20 to 24 (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P25_TO_34
    Block group population in age range 25 to 34 (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P35_TO_44
    Block group population in age range 35 to 44 (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P45_TO_54
    Block group population in age range 45 to 54 (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P55_TO_59
    Block group population in age range 55 to 59 (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P60_TO_64
    Block group population in age range 60 to 64 (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P65_TO_69
    Block group population in age range 65 to 69 (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P70_TO_74
    Block group population in age range 70 to 74 (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P75_TO_84
    Block group population in age range 75 to 84 (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P75_OLDER
    Block group population 75 and older (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P85_OLDER
    Block group population 85 and older (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    MEDIAN_AGE
    Median Age (years) (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P18_OLDER
    Block group population 18 and older (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P21_OLDER
    Block group population 21 and older (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    P65_OLDER
    Block group population 65 and older (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    M75_OLDER
    Block group population 75 and older (males only) (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    F75_OLDER
    Block group population 75 and older (females only) (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    HOUSEHOLDS
    Number of Households (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    HH_SIZE
    Average person per household within block group (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    SINGLE_HH
    Single Person Households (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    FAMILY_HH
    Family Households (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    MAR_COUPLE
    Married Couple Family (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    W_OWN_CHLD
    Married couple family with their own child/children (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    M_SNGL_PAR
    Male Single Parent Household (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    F_SNGL_PAR
    Female Single Parent Household (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    NONFAM_HH
    Non-Family Household (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    HH_W_CHILD
    Household with Child/Children Under 18 (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    HH_W_ELDER
    Household with Ederly Member (65 and older) (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    SNGL_ELDER
    Single Elderly (65 and older) Household (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    POP_IN_HH
    Population in Households (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    FAM_HHLDER
    Family Householder (household head) (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    SPOUSE
    Spouse of householder (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    CHILD
    Child in family household (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    GROUP_QTRS
    Population in Group Quarters (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    GQ_INST
    Population in Institutionalized Group Quarters (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    GQ_NONINST
    Population in Non-Institutionalized Group Quarters (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    FAM_SIZE
    Average Family Size (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    HOUSING_U
    Total Housing Units (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    OCCUPIED
    Occupied Housing Units (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    VACANT
    Vacant Housing Units (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    OWNER_U
    Owner-Occupied Housing Units (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    RENTER_U
    Renter-Occupied Housing Units (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    VACANT_SEA
    Vacant (For Seasonal, Recreational, or Occasional Use) (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    HH_SIZE_RE
    Average Household Size (Renter-Occupied Units) (Source: US Department of Commerce, Bureau of the Census)

    Frequency of measurement: None planned

    Figure varies.

    DENSITY
    Population Density (Persons Per Square Mile) (Source: GIS generated)

    Frequency of measurement: None planned

    Density varies.

    ACRES
    Area of Block Group in Acres (Source: GIS generated)

    Frequency of measurement: None planned

    Acres varies.

    CENBG00_

    CENBG00_ID

    SQMILES

    SHAPE
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    SHAPE.area

    onemap_prod.SDEADMIN.cenbg00.AREA

    2000 Census Block Groups
    2000 Census Block Groups processed from TIGER/Line files from the US Department of Commerce, Bureau of the Census (Source: Bureau of the Census)

    FNODE#
    From-node identifier of linear feature (Source: Software computed)

    Frequency of measurement: None planned

    Range of values
    Minimum:1
    Maximum:9,612

    TNODE#
    To-node identifier of linear feature (Source: Software computed)

    Frequency of measurement: None planned

    Range of values
    Minimum:1
    Maximum:9,612

    LPOLY#
    Internal number of poly to left of arc (Source: Software computed)

    Frequency of measurement: None planned

    Range of values
    Minimum:1
    Maximum:5,278

    RPOLY#
    Internal number of poly to right of arc (Source: Software computed)

    Frequency of measurement: None planned

    Range of values
    Minimum:1
    Maximum:5,278

    LENGTH
    Length of arc in coverage units (Source: Software computed)

    Frequency of measurement: As needed

    Range of values
    Minimum:1.223
    Maximum:149,105.578
    Units:meters
    Resolution:10.0

    BG2000#
    Internal feature number (Source: Software computed)

    Frequency of measurement: As needed

    Range of values
    Minimum:1
    Maximum:14,886

    BG2000-ID
    Internal identification number (Source: User defined)

    Frequency of measurement: As needed

    Range of values
    Minimum:1
    Maximum:14,886

    Entity_and_Attribute_Overview:
    An arc and polygon coverage depicting Census block groups. The attributes table summaries follow: 
    BG2000.PAT  Polygon Attribute Table
COL  ITEM NAME          WIDTH OUTPUT  TYPE   DEC  DESCRIPTION
  1  AREA                   4    12     F      3  Total area in meters
  5  PERIMETER              4    12     F      3  Total perimeter in meters
  9  BG2000#                4     5     B      -  Poly internal id number
 13  BG2000-ID              4     5     B      -  Poly user id number
 17  BGROUP                13    13     C      -  Block group 12-digit code
 30  TOTAL_POP              4     5     B      -  Total population
 34  POP_1RACE              4     5     B      -  Population comprised of single race
 38  WHITE_ONLY             4     5     B      -  White population
 42  BLACK_ONLY             4     4     B      -  Black/African American population
 46  AMIND_ONLY             4     4     B      -  American Indian/Alaska native population
 50  ASIAN_ONLY             4     4     B      -  Asian population
 54  HWPAC_ONLY             4     3     B      -  Hawaiian/Other Pacific population
 58  OTHER_ONLY             4     4     B      -  Population of other races
 62  POP_2RACES             4     4     B      -  Population comprised of multiple races
 66  HISPANIC               4     4     B      -  Hispanic/Latino population
 70  MALE                   4     5     B      -  Male population
 74  FEMALE                 4     4     B      -  Female population
 78  P_UNDER_5              4     4     B      -  Population under age 5
 82  P5_TO_9                4     3     B      -  Population in age range 5 to 9
 86  P10_TO_14              4     3     B      -  Population in age range 10 to 14
 90  P15_TO_19              4     3     B      -  Population in age range 15 to 19
 94  P20_TO_24              4     4     B      -  Population in age range 20 to 24
 98  P25_TO_34              4     4     B      -  Population in age range 25 to 34
102  P35_TO_44              4     4     B      -  Population in age range 35 to 44
106  P45_TO_54              4     3     B      -  Population in age range 45 to 54
110  P55_TO_59              4     3     B      -  Population in age range 55 to 59
114  P60_TO_64              4     3     B      -  Population in age range 60 to 64
118  P65_TO_69              4     3     B      -  Population in age range 65 to 69
122  P70_TO_74              4     3     B      -  Population in age range 70 to 74
126  P75_TO_84              4     3     B      -  Population in age range 75 to 84
130  P75_OLDER              4     3     B      -  Population 75 and older
134  P85_OLDER              4     3     B      -  Population 85 and older
138  MEDIAN_AGE             4     5     F      2  Median Age (years)
142  P18_OLDER              4     4     B      -  Population 18 and older
146  P21_OLDER              4     4     B      -  Population 21 and older
150  P65_OLDER              4     4     B      -  Population 65 and older
154  M75_OLDER              4     3     B      -  Population 75 and older (males)
158  F75_OLDER              4     3     B      -  Population 75 and older (females)
162  HOUSEHOLDS             4     4     B      -  Number of Households
166  HH_SIZE                4     4     F      2  Average persons per household
170  SINGLE_HH              4     4     B      -  Single Person Households
174  FAMILY_HH              4     4     B      -  Family Households
178  MAR_COUPLE             4     4     B      -  Married Couple Family
182  W_OWN_CHLD             4     4     B      -  Married couple family with their own
                                                   child/children
186  M_SNGL_PAR             4     2     B      -  Male Single Parent Household
190  F_SNGL_PAR             4     3     B      -  Female Single Parent Household
194  NONFAM_HH              4     4     B      -  Non-Family Household
198  HH_W_CHILD             4     4     B      -  Household with Child/Children Under 18
202  HH_W_ELDER             4     3     B      -  Household with Ederly Member
                                                   (65 and older)
206  SNGL_ELDER             4     3     B      -  Single Elderly (65 and older)
                                                   Household
210  POP_IN_HH              4     5     B      -  Population in Households
214  FAM_HHLDER             4     4     B      -  Family Householder (household head)
218  SPOUSE                 4     4     B      -  Spouse of householder
222  CHILD                  4     4     B      -  Child in family household
226  GROUP_QTRS             4     5     B      -  Population of Group Quarters
230  GQ_INST                4     4     B      -  Population of Institutionized
                                                   Group Quarters
234  GQ_NONINST             4     5     B      -  Population of Non-Institutionized
                                                   Group Quarters
238  FAM_SIZE               4     4     F      2  Average Family Size
242  HOUSING_U              4     4     B      -  Total Housing Units
246  OCCUPIED               4     4     B      -  Occupied Housing Units
250  VACANT                 4     4     B      -  Vacant Housing Units
254  OWNER_U                4     4     B      -  Owner-Occupied Housing Units
258  RENTER_U               4     4     B      -  Renter-Occupied Housing Units
262  VACANT_SEA             4     4     B      -  Vacant (For Seasonal, Recreational, or
                                                   Occasional Use)
266  HH_SIZE_OW             4     4     F      2  Average Household Size (Owner-Occupied
                                                   Unit)
270  HH_SIZE_RE             4     4     F      2  Average Household Size (Renter-Occupied
                                                   Unit)
274  ACRES                  4    10     F      3  Area of Block Group in Acres
278  SQMILES                4    10     F      3  Area of Block Group in Square Miles
282  DENSITY                4    12     F      3  Population Density (Persons Per Square
                                                   Mile)
BG2000.AAT  Arc Attribute Table
COL  ITEM NAME          WIDTH OUTPUT  TYPE   DEC  DESCRIPTION
  1  FNODE#                 4     5     B      -  From-node id of
                                                   linear feature
  5  TNODE#                 4     5     B      -  To-node id of linear
                                                   feature
  9  LPOLY#                 4     5     B      -  Left-side polygon
                                                   id of linear feature
 13  RPOLY#                 4     5     B      -  Right-side polygon
                                                   id of linear feature
 17  LENGTH                 4    12     F      3  Length of linear
                                                   feature in meters
 21  BG2000#                4     5     B      -  Internal id number
 25  BG2000-ID              4     5     B      -  Internal id number
    Entity_and_Attribute_Detail_Citation: None

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    U.S. Bureau of the Census
Washington, DC 20233

NCCGIA Director
Database Administration, Zsolt Nagy
Database Management, Ken Shaffer
NC Center for Geographic Information and Analysis
Governor's Office
Office of State Planning
State of North Carolina
301 North Wilmington Street, Suite 700
Raleigh, NC 27601-2825

  3. To whom should users address questions about the data?

    US Department of Commerce, Bureau of the Census
    Bureau of the Census
    Washington, D.C. 20233
    U.S.A.

    (301) 763-4100 (voice)
    (301) 763-4794 (FAX)

    Hours_of_Service: 8:00am to 5:00pm

Why was the data set created?

This file was developed to enable a user to see the geographic component from the 2000 Census.

How was the data set created?

  1. From what previous works were the data drawn?

    None (source 1 of 2)
    US Department of Commerce, Bureau of the Census, 2000, Geographic Base File/Dual Independent Map Encoding: US Department of Commerce, Bureau of the Census, Washington, D.C..

    Type_of_Source_Media: stable-base material
    Source_Scale_Denominator: 100000
    Source_Contribution:
    Digital descriptions of street, other map features, address ranges, and ZIP codes (DIME files)

    None (source 2 of 2)
    NC Center for Geographic Information and Analysis, 2000, ARC/INFO TIGER/Line county files: NC Center for Geographic Information and Analysis, Raleigh, NC.

    Type_of_Source_Media: Digital Line Graphs
    Source_Scale_Denominator: 100000
    Source_Contribution: Conversion of Census digital files to an ARC/INFO platform

  2. How were the data generated, processed, and modified?

    Date: 2000 (process 1 of 4)
    2000 Census TIGER line files were downloaded from the Census Bureau website (www.census.gov). Note: Selected variables by blockfrom Census 2000 Summary File 1 were furnished by the NC State Data Center.

    Person who carried out this activity:

    NC Center for Geographic Information and Analysis
    301 North Wilmington Street, Suite 700
    Raleigh, North Carolina 27601-2825
    USA

    (919) 733-2090 (voice)
    (919) 715-0720 (FAX)
    dataq@cgia.state.nc.us

    Hours_of_Service: 8:30-5:30
    Contact_Instructions: Email or phone contact preferred.
    Date: 2000 (process 2 of 4)
    2000 TIGER/Line files from the Census Bureau website were converted to an ARC/INFO coverage format using TIGERTOOL. A unique id was generated for each block, block group, tract and place based on the following: Block: [State FIPS (37)] [County FIPS 1 to 199 odd, 3-digit] [Tract, 6-digit] [Block, 4-digit] Block Group: [State FIPS (37)] [County FIPS 1 to 199 odd, 3-digit] [Tract, 6-digit] [Block group, 1-digit] Tract: [State FIPS (37)] [County FIPS 1 to 199 odd, 3-digit] [Tract, 6-digit] Place [5-digit place id, unique to North Carolina] To create block group coverages, the TIGER Line files were then dissolved on block group, cleaned and projected from NAD27 feet to NAD83 meters projection. The individual county block group coverages were then appended to create a statewide block group coverage. Selected attributes were joined to the statewide coverage from Census 2000 Summary File 1.

    Person who carried out this activity:

    NC Center for Geographic Information and Analysis
    301 North Wilmington Street, Suite 700
    Raleigh, North Carolina 27601-2825
    USA

    (919) 733-2090 (voice)
    (919) 715-0720 (FAX)
    dataq@cgia.state.nc.us

    Hours_of_Service: 8:30-5:30
    Contact_Instructions: Email or phone contact preferred.
    (process 3 of 4)
    Metadata imported.

    Data sources used in this process:

    • C:\DOCUME~1\david\LOCALS~1\Temp\xml442.tmp

    (process 4 of 4)
    Dataset copied.

    Data sources used in this process:

    • Server=cgiatdb; Service=5151; Database=onemap_test; User=sdeadmin; Version=sde.DEFAULT

  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    The digital files from the Census Bureau were converted into ARC/INFO files. Selected attributes were joined to the TIGER files from the Census 2000 Summary File 1. Each county coverage was checked against county census block grid maps on the Census Bureau website (www.census.gov Maps=>Map Products=>Census2000 block maps=>st37_northcarolina).

  2. How accurate are the geographic locations?

    With the exception of dissolving polygons and projecting data, no other positional changes were made by NC CGIA.

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    Linework for the 2000 Census files is based predominantly on the Census Bureau's TIGER Line files. The coverages were dissolved on the block group item and selected attributes joined from the 2000 Summary File 1 by NC CGIA.

  5. How consistent are the relationships among the observations, including topology?

    The ARC/INFO files have been "cleaned" and "built" to ensure complete topology.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None
Use_Constraints:
Acknowledgement of products derived form this data set should cite the following: The source of the 2000 Census Block Group data is the North Carolina Corporate Geographic Database. Earlier versions of this data set may exist. The user must be sure to use the appropriate data set for the time period of interest. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, CGIA cannot assume liability for any damages or misrepresentation caused by any inaccuracies in the data or as a result of changes to the data caused by system transfers.

  1. Who distributes the data set? (Distributor 1 of 1)

    NC Center for Geographic Information and Analysis
    Production Services
    301 North Wilmington Street, Suite 700
    Raleigh, North Carolina 27601-2825
    USA

    (919) 733-2090 (voice)
    (919) 715-0725 (FAX)
    dataq@cgia.state.nc.us

    Hours_of_Service: 8:30AM - 5:30PM
    Contact_Instructions:
    Phone and electronic mail preferred For current price information use a web browser: COST INFORMATION - <http://www.cgia.state.nc.us/cost.html>
  2. What's the catalog number I need to order this data set?

    2000 Census Block Groups

  3. What legal disclaimers am I supposed to read?

    NCCGIA is charged with the development and maintenance of the State's corporate geographic database and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information about the state. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop the corporate database may be reflected in the data supplied. The client must be aware of data conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data, and other conditions specific to certain data. NCCGIA does not support secondary distribution of this data. The use of trade names or commercial products does not constitute their endorsement by the NCCGIA or North Carolina State Government.

  4. How can I download or order the data?

  5. Is there some other way to get the data?

    Data creation and large data analysis jobs contact Database Administration P:(919)733-2090. All data is available through standard ordering procedures on a cost-recovery basis.

  6. What hardware or software do I need in order to use the data set?

    All formats supplied are created using ARC/INFO GIS software on Unix workstations. Other formats are available. Format compatibility is the user's responsibility. For more information on formats and media, use a web browser: FORMAT/MEDIA INFORMATION - <http://www.cgia.state.nc.us/cost.html>

Who wrote the metadata?

Dates:
Last modified: 02-Oct-2006
Metadata author:
NC Center for Geographic Information and Analysis
c/o REQUIRED: The person responsible for the metadata information.
Database Management
301 North Wilmington Street, Suite 700
Raleigh, North Carolina 27601-2825
USA

(919) 733-2090 (voice)
(919) 715-0725 (FAX)
dataq@cgia.state.nc.us

Hours_of_Service: 8:30AM - 5:30PM
Contact_Instructions: Phone and electronic mail preferred
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

Generated by mp version 2.9.5 on Wed Aug 27 10:29:27 2008