onemap_prod.SDEADMIN.air

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Frequently-anticipated questions:

What does this data set describe?

Title: onemap_prod.SDEADMIN.air
Abstract:
NCCGIA developed a GIS data set representing point locations for airports located in North Carolina.
Supplemental_Information:
Point locations were verified using 1998 Digital Orthophoto Quarter Quads where a runway was visible.
  1. How should this data set be cited?

    The North Carolina Center for Geographic Information and Analysis (NCCGIA), 20040316, onemap_prod.SDEADMIN.air.

    Online Links:

    Other_Citation_Details: NCCGIA distributes this dataset

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -84.110286
    East_Bounding_Coordinate: -75.564368
    North_Bounding_Coordinate: 36.547538
    South_Bounding_Coordinate: 33.829985

  3. What does it look like?

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

    Calendar_Date: 16-Mar-2004
    Time_of_Day: unknown
    Currentness_Reference: publication date

  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?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • Entity point (366)

    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 0.002048
      Ordinates (y-coordinates) are specified to the nearest 0.002048
      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.air
    Airports Locations in North Carolina (Source: CGIA)

    LOCID
    Airport Location Identifier (Source: FAA)

    Frequency of measurement: As needed

    variable

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    ARPT_NAME
    Airport Name (Source: FAA)

    Frequency of measurement: As needed

    Airport Name

    ARPT_ID
    Airport Identification Number (Source: NC DOT)

    Frequency of measurement: As needed

    variable

    CLASS
    Airport Facility Type (Source: FAA)

    Frequency of measurement: As needed

    ValueDefinition
    AIRPORTFacility is an airport
    GLIDERPORTThe facility is a glider port
    HELIPORTThe facility is a heliport
    MAJOR AIRPORTThe facility is a major airport
    SEAPLANE BASEThe facility is a base for a seaplane
    STOLPORTThe facility is a stolport
    ULTRALIGHTThe facility is for ultralight aircraft

    ARPT_USE
    Airport Ownership Type (Source: FAA)

    Frequency of measurement: As needed

    ValueDefinition
    PUPublic
    PRPrivate

    COUNTY
    County where airport is located (Source: FAA)

    Frequency of measurement: As needed

    Formal codeset
    Codeset Name:County names
    Codeset Source:State of North Carolina

    STATE
    State where airport is located (Source: NC DOT)

    Frequency of measurement: As needed

    ValueDefinition
    NCNorth Carolina

    ASSO_CITY
    City associated with airport (Source: FAA)

    Frequency of measurement: As needed

    variable

    CO_FIPS
    County code according to the Federal Information Processing Standards (Source: NC DOT)

    Frequency of measurement: As needed

    Formal codeset
    Codeset Name:County FIPS
    Codeset Source:US Bureau of the Census

    MSL
    Airport Elevation above mean sea level (Source: FAA)

    Frequency of measurement: As needed

    Range of values
    Minimum:0
    Maximum:5000
    Units:feet

    NAME1
    Primary Contact Name (Source: NC DOT)

    Frequency of measurement: As needed

    variable

    NAME2
    Secondary Contact Name (Source: NC DOT)

    Frequency of measurement: As needed

    variable

    NAME3
    Tertiary Contact Name (Source: NC DOT)

    Frequency of measurement: As needed

    variable

    PHONE1
    Primary Contact Phone Number (Source: NC DOT)

    Frequency of measurement: As needed

    variable

    PHONE2
    Secondary Contact Phone Number (Source: NC DOT)

    Frequency of measurement: As needed

    variable

    PHONE3
    Tertiary Contact Phone Number (Source: NC DOT)

    Frequency of measurement: As needed

    variable

    OBJECTID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    STATUS
    Status of point location (Source: CGIA)

    Frequency of measurement: As needed

    ValueDefinition
    editeda point was moved to reflect its correct location as verified by orthophotography
    okpoint locations were verified in orthophotos
    no orthoNo orthophoto was available for the point location; not verified
    not verifiedpoint location could not be verified on available orthophoto

    SHAPE
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    Entity_and_Attribute_Overview: The theme includes airport name, type, and contact information.
    Entity_and_Attribute_Detail_Citation:
    Division of Aviation North Carolina 2003 Airport Guide, NC Department of Transportation, Division of Aviation, 2003

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?

    Federal Aviation Administration, Aeronautical Information Services ATA-100, Room 626 800 Independence Ave, S.W. Washington D.C, 20591 Toll free number: 1-866-295-8236 ext.35442 Fax number: 1-202-493-4266 Email: 9-awa-ata100-feedback@faa.gov
    NC Department of Transportation Division of Aviation 1050 Meridian Drive RDU Airport, NC 27623
    North Carolina Center for Geographic Information and Analysis NC Dept. of Environment and Natural Resources Project Manager - Jeff Brown 301 North Wilmington Street, Suite 700 Raleigh, NC 27699-0322

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

    NC CGIA
    20322 Mail Service Center
    Raleigh, NC 27699-0322
    USA

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

    Hours_of_Service: 9:00 to 5:00

Why was the data set created?

These data were 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?

    FAA (source 1 of 2)
    Administration, Federal Aviation , 2003, FAA Landing Facility Database.

    Online Links:

    Type_of_Source_Media: CD-ROM
    Source_Contribution:
    Point locations for airports not included in state DOT files were extracted from the national FAA dataset.

    NC DOT Airport Division (source 2 of 2)
    NC Department of Transportation, Division of Aviation, 2003, Division of Aviation North Carolina 2003 Airport Guide.

    Type_of_Source_Media: paper
    Source_Contribution:
    Latitude/longitude locations and attributes for airports in North Carolina

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

    Date: Dec-2003 (process 1 of 3)
    In December 2003, NCCGIA created a point shapefile from lat/longs provided by NC DOT. A shapefile was also created from data supplied by the FAA. Because there was not a common field for joining tables, NCCGIA identified FAA points that coincided with or were near a state point. The FAA points within 3,200 feet of a state point were selected in ArcView. These points were converted to a shapefile. Then the selection was switched to make the FAA points selected as those not near a state point. That selection was converted to a shapefile. The two datasets were merged to fill in gaps that occured in both datasets allowing for a more complete statewide airports coverage. NCCGIA then used digital orthophotography from 1998 to verify the points.

    Person who carried out this activity:

    Jeff Brown
    NC Center for Geographic Information and Analysis
    Project Manager
    301 North Wilmington Street, Suite 700
    Raleigh, NC 27601
    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
    (process 2 of 3)
    Metadata imported.

    Data sources used in this process:

    • C:\DOCUME~1\david\LOCALS~1\Temp\xml11.tmp

    (process 3 of 3)
    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?

    CGIA, NC, 20030616, Airport Locations In North Carolina.

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

  1. How well have the observations been checked?

    In December 2003, NCCGIA created a point shapefile from lat/longs provided by NC DOT. A shapefile was also created from data supplied by the FAA. Because there was not a common field for joining tables, NCCGIA identified FAA points that coincided with or were near a state point. The FAA points within 3,200 feet of a state point were selected in ArcView. These points were converted to a shapefile. Then the selection was switched to make the FAA points selected as those not near a state point. That selection was converted to a shapefile. The two datasets were merged to fill in gaps that occured in both datasets allowing for a more complete statewide airports coverage. NCCGIA then used digital orthophotography from 1998 to verify the points. The data were intended for planning purposes and were not verified or documented for GIS.

  2. How accurate are the geographic locations?

    For the larger airports, point locations (approximate center of airport) were verified using 1998 digital orthophoto quarter quads at 1-meter resolution. The smallest airports were not visible on photos and not verified by other means.

  3. How accurate are the heights or depths?

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

    These data represent the locations of airports in North Carolina as identified by the NC DOT and the FAA.

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

    Using ESRI's ARC/INFO Arcview software, a point shapefile was created.

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 from this data set should cite the following: The source of the North Carolina Airport Locations data is the North Carolina Corporate Geographic Database. Earlier versions of this dataset 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, NCCGIA 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 CGIA
    20322 Mail Service Center
    Raleigh, NC 27699-0322
    USA

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

    Hours_of_Service: 9:00 to 5:00
  2. What's the catalog number I need to order this data set?

    GIS data layer

  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 these 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 are 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 or ArcGIS on Windows PCs. Other formats are available. Format compatibility is the user's responsibility. For more information on formats and media, use a web browser: <http://www.cgia.state.nc.us/cost.html>

Who wrote the metadata?

Dates:
Last modified: 02-Oct-2006
Last Reviewed: 19-Mar-2004
Metadata author:
North Carolina Center for Geographic Information and Analysis
c/o REQUIRED: The person responsible for the metadata information.
Database Manager
301 North Wilmington Street, Suite 700
Raleigh, NC 27601
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 10:28:59 2008