State-Owned Lands

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Frequently-anticipated questions:

What does this data set describe?

Title: State-Owned Lands
Abstract:
The North Carolina Department of Administration, State Property Office, in cooperation with the NC Center for Geographic Information and Analysis, developed the GIS data set, State-owned Complexes, to define the exterior boundaries of state-owned complexes in North Carolina; e.g.:DOT maintenance yards, state parks, state universities, etc.
Supplemental_Information:
Revisions and updates to this layer include: 17.) Regular update - May 6, 2008 16.) Regular update - February 1, 2008 15.) Regular update - October 17, 2007 14.) Regular update - January 8, 2007 13.) Regular update - March 13, 2006 12.) Regular update - May 4, 2004 11.) Regular update - November 3, 2003 10.) Regular update - July 22, 2002 9.) Regular update - March 29, 2000 8.) The June 28, 1999 update includes addition of several polygons to the coverage and deletion of the arc attribute table (.aat). 7.) The December 1998 update to this layer consisted of projecting the data from NAD27 datum, State Plane projection, units of measure feet TO: NAD83 DATUM, State Plane PROJECTION, UNITS OF MEASURE METERS. This was done to comply with the NC Geographic Information Coordinating Council's "Statement of Direction for North Carolina Corporate Geographic Database Horizontal Reference, Datum and Unit of Measure". This reprojecting was done in various ways depending on the data type and content. Vector data was projected using the 'project' command in ESRI's Arc software and topology was cleaned and built based on coverage needs. Raster data was projected using ESRI's Grid module and various steps as applicable. 6.) Revision on April 28, 1998 consisted of the addition of several complexes. 5.) Revision on August 8, 1996 consisted of the addition of several complexes. 4.) (previously named nc.soc995) The September 8, 1995 revision consisted of the addition of several complexes, as well as polygon attribute item changes. 3.) (previously named nc.soc1094) The October 26, 1994 revision consisted of the removal of a bogus polygon. 2.) (previously named nc.soc794) The July 14, 1994 update consisted of replacing lookup tables with new items in the polygon attribute table. 1.) (previously named nc.soc793) The July 1993 file was still a current representation as of February 18, 1994.
  1. How should this data set be cited?

    NC Dept. of Administration, State Property Office, 20080506, State-Owned Lands: NC Dept. of Administration, State Property Office, Raleigh, North Carolina.

    Online Links:

    • Metadata - www.nconemap.com

    Other_Citation_Details: NCCGIA distributes this dataset

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -84.082318
    East_Bounding_Coordinate: -75.481359
    North_Bounding_Coordinate: 36.593006
    South_Bounding_Coordinate: 33.744963

  3. What does it look like?

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

    Beginning_Date: Jul-1993
    Ending_Date: 17-Oct-2007
    Currentness_Reference: Data creation and revision 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: _Method: Complex name, location
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • G-polygon (4504)

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

      The map projection used is Lambert Conformal Conic.

      Projection parameters:
      Standard_Parallel: 34.333333
      Standard_Parallel: 36.166667
      Longitude_of_Central_Meridian: -79.000000
      Latitude_of_Projection_Origin: 33.750000
      False_Easting: 2000000.002617
      False_Northing: 0.000000

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 1.000000
      Ordinates (y-coordinates) are specified to the nearest 1.000000
      Planar coordinates are specified in survey feet

      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.

  7. How does the data set describe geographic features?

    State-Owned Lands
    Areas owned by the State of North Carolina (Source: NC Dept of Administration, State Property Office)

    CTY
    Complex type (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    ValueDefinition
    1Polygon is part or all of state-owned complex
    BlankPolygon is an island and not state-owned property (surrounded by state-owned property)

    CO
    County number (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: None planned

    Range of values
    Minimum:0
    Maximum:100

    COMP_
    Complex number (within county) (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    Complex number used internally

    ASSET_
    Land asset number (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    Range of values
    Minimum:0
    Maximum:273

    RELASSET
    Link ID to land asset table (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    Link ID used internally

    GRAPHIC_DA
    Graphic date (Contact the SPO office for details) (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    Dates vary in length and number of characters

    SHAPE_len
    Calculated length (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    Range of values
    Minimum:0.000
    Maximum:97061.15

    BUILD_NAME
    Building Name (Contact the SPO office for details) (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    Names vary in length and number of characters

    RELCOMP
    Link ID to complex table (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    Link ID used internally

    SPO_FILE
    SPO file number (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    File number used internally

    DEED_ACRES
    Deed acreage (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    Range of values
    Minimum:0.000
    Maximum:47,821.9

    GIS_ACRES
    Calculated acreage (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    Range of values
    Minimum:0.000
    Maximum:47,861

    MAPPING_CO
    Mapping Comments (Contact the SPO office for details) (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    Comments vary in length and number of characters

    SPOFileNo
    SPO file number (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    File number used internally

    OBJECTID
    Object ID number (Source: Software)

    Frequency of measurement: As needed

    Range of values
    Minimum:1
    Maximum:9753

    SHAPE_area
    Calculated area (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    Range of values
    Minimum:0.000
    Maximum:145843566.88

    COMPLEXNAM
    Complex name (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    Names vary in length and number of words

    ADDRESS1
    Complex address (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    Addresses vary in length and number of words

    RELCOMP_1
    Link ID to complex table (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    Link ID used internally

    COMMENTS
    Miscellaneous comments (Source: NC Dept. of Administration, State Property Office)

    Frequency of measurement: As needed

    Comment varies in length and number of words

    Entity_and_Attribute_Overview:
    A dataset depicting boundaries of state-owned complexes in North Carolina.
    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?

    NC Dept. of Administration; State Property Office NC Dept. of Environement and Natural Resources; North Carolina Center for Geographic Information and Analysis

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

    Jeff Mulligan
    NC Dept. of Administration, State Property Office
    116 W. Jones Street
    Raleigh, North Carolina 27601-2825-8003
    U.S.A.

    (919) 807-4675 (voice)
    (919) 733-1431 (FAX)

    Hours_of_Service: 8:00am to 5:00pm
    Contact_Instructions: Preferred contact is by mail or telephone.

Why was the data set created?

This data was created to assist governmental agencies and others in making resource management decisions through use of a Geographic Information System (GIS).

How was the data set created?

  1. From what previous works were the data drawn?

    None (source 1 of 1)
    NC Dept. of Administration, State Property Office, 19980430, State-owned Complexes: NC Dept. of Administration, State Property Office, Raleigh, North Carolina.

    Other_Citation_Details: Data is updated as needed
    Type_of_Source_Media: Paper
    Source_Contribution: Exterior boundaries of state-owned complexes in a digital file.

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

    Date: 30-Apr-1998 (process 1 of 2)
    Data were supplied by the counties in the state. Since each county was at their own stage of data development, complex sites were furnished by means of digital cadastral data, paper orthophoto quads, paper maps, or deeds. Scales of maps varied from 1:50 through 1:24,000. Those sites delineated on maps were digitized and then appended to data originally supplied in digital form, to produce a final file.

    Person who carried out this activity:

    Jeff Mulligan
    NC Dept. of Administration, State Property Office
    512 N. Salisbury Street
    Raleigh, North Carolina 27604-1148
    U.S.A.

    (919) 807-4675 (voice)
    (919) 733-1431 (FAX)

    Hours_of_Service: 8:00am to 5:00pm
    Contact_Instructions: Preferred contact is by phone or mail.
    Date: 17-Oct-2007 (process 2 of 2)
    The digital file of boundaries and attributes is supplied to CGIA for input into ARC/INFO GIS and NC OneMap. Files were input, built for topology and had attributes joined to them.

    Person who carried out this activity:

    Cheryl Pearce
    NCCGIA
    GIS Analyst
    301 N. Wilmington Street, Suite 700
    Raleigh, North Carolina 27601-2825
    U.S.A.

    (919) 733-2090 (voice)
    (919)715-0725 (FAX)
    dataq@ncmail.net

    Hours_of_Service: 8:30AM - 5:30PM
    Contact_Instructions: Phone and electronic mail preferred
  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?

    Data was checked for errors.

  2. How accurate are the geographic locations?

    Data were supplied by the counties. Since each was in its own stage of data development, error tolerances for sites varied depending on how the data were originally furnished. Contact SPO for details on a particular site.

  3. How accurate are the heights or depths?

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

    These data show the extents of state-owned complexes throughout the state.

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

    Using ESRI's Arc/Info GIS software, the data set was built for arc and polygon topology using the "build" command. Topology has not been edited since the last build or clean.

How can someone get a copy of the data set?

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

Access_Constraints:
Spatial data accuracy varies greatly in this data layer due to the wide variety of data sources used for compilation. This spatial data layer should be used for illustrative and planning purposes only, and should not be accepted as definitive in any legal dispute or other situation where precise ownership data is required. The SPO can provide some information concerning the source data and compilation method used for complexes in particular counties. The State Property Office is notified monthly of the users of this data.
DISCLAIMER: The State Property Office databases are continually updated as new information is acquired. The locational database at CGIA is updated as needed for applications. Users should determine from CGIA the date of the last update, and if necessary, see that an update is done prior to their application being run. All printed maps from the GIS should be dated. Depending on activity in a given area, a map may quickly become outdated, or may remain current for several years. It is not possible to set a specific expiration date on maps; however, you may wish to check with the State Property Office for accuracy. All land records have a start date and were entered into the GIS with the best knowledge available from several different sources. The State Property Office is planning to go through a reconciliation process in 1994, which would hopefully clear up any discrepancies.
Use_Constraints:
Acknowledgement of products derived form this data set should cite the following: The source of the State-owned Complexes data is the NC OneMap. 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 N. Wilmington Street, Suite 700
    Raleigh, North Carolina 27601-2825
    U.S.A.

    (919) 733-2090 (voice)
    (919) 715-0725 (FAX)
    dataq@ncmail.net

    Hours_of_Service: 8:30AM - 5:30PM
    Contact_Instructions: Phone and electronic mail preferred
  2. What's the catalog number I need to order this data set?

    State-Owned Complexes

  3. What legal disclaimers am I supposed to read?

    NCCGIA is charged with the development and maintenance of NC OneMap and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop this dataset may be reflected in the data supplied. The user must be aware of possible 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 dataset without its current, compliant metadata record. The use of trade names or commercial products does not constitute their endorsement by 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 can be customized on a cost-recovery basis. Contact dataq@ncmail.net or 919-733-2090 for more information.

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

    All formats available from www.nconemap.com are in ESRI shapefile. Other formats are available on a cost-recovery basis - contact dataq@ncmail.net or 919.733.2090 for more information. Format compatibility is the user's responsibility.

Who wrote the metadata?

Dates:
Last modified: 15-May-2008
Metadata author:
North Carolina Center for Geographic Information and Analysis
c/o REQUIRED: The person responsible for the metadata information.
Database Management
301 N. Wilmington Street, Suite 700
Raleigh, North Carolina 27601-2825
U.S.A.

(919) 733-2090 (voice)
(919) 715-0725 (FAX)
dataq@nc.mail.net

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 10:31:45 2008