to the National Atlas Home page
About | Fact Sheets | Contact Us | Partners | Products | Site Map | FAQ | Help | Follow us on Twitter 
Part of Project LogoAgricultureBiologyBoundariesClimateEnvironmentGeologyGovernmentHistoryMappingPeopleTransportationWater
to the Interactive Map MakerMap LayersPrintable MapsWall MapsDynamic MapsArticlesMapping Professionals

Airports of the United States

Metadata also available as [Parseable text] - [XML]

Frequently anticipated questions:


What does this data set describe?

Title: Airports of the United States
Abstract:
This map layer includes airports in the United States, Puerto Rico and the U.S. Virgin Islands. The data were derived from an extract of the Public-Use Airports database of the National Transportation Atlas Databases-2010 (NTAD-2010), published by the Bureau of Transportation Statistics, Department of Transportation.
Supplemental_Information:
Information about National Atlas Web services can be found on the Web Map and Web Feature Services page; see <http://nationalatlas.gov/infodocs/webservices.html>.
  1. How should this data set be cited?

    National Atlas of the United States, 201207, Airports of the United States: National Atlas of the United States, Rolla, MO.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -177
    East_Bounding_Coordinate: -64
    North_Bounding_Coordinate: 72
    South_Bounding_Coordinate: 17

  3. What does it look like?

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

    Calendar_Date: Jul-2012
    Currentness_Reference: Publication date

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

  6. How does the data set represent geographic features?

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

      Indirect_Spatial_Reference:
      U.S. Census Bureau; American National Standards Institute (ANSI) Codes for States, the District of Columbia, Puerto Rico, and the Insular Areas of the United States.
      U.S. Census Bureau; 2010; ANSI Information for Counties and Equivalent Entities.
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • Entity point (940)

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

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000278. Longitudes are given to the nearest 0.000278. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is GRS1980.
      The semi-major axis of the ellipsoid used is 6378137.
      The flattening of the ellipsoid used is 1/298.257222.

  7. How does the data set describe geographic features?

    Airport
    An area where aircraft can take off and land, usually equipped with associated buildings and facilities, and used primarily by conventional, fixed-wing aircraft. (Source: National Atlas of the United States)

    Shape
    The representation of the entity in the data. (Source: National Atlas of the United States)

    ValueDefinition
    Point0-dimensional element

    Airprtx010
    Internal feature number. (Source: National Atlas of the United States)

    Range of values
    Minimum:0
    Maximum:2060

    Feature
    The type of landing facility. (Source: National Atlas of the United States)

    ValueDefinition
    AIRPORTAn area where aircraft can take off and land.

    Icao
    The 4-digit International Civil Aviation Organization (ICAO) airport location indicator. (Source: National Atlas of the United States)

    ValueDefinition
    NONEThere is no ICAO location identifier for the airport.

    Formal codeset
    Codeset Name:Air Carrier Activity Information System (ACAIS)
    Codeset Source:U.S. Department of Transportation, Federal Aviation Administration

    Iata
    The 3- or 4-digit International Air Transport Association (IATA) airport location code. (Source: National Atlas of the United States)

    ValueDefinition
    NONEThere is no IATA location code for the airport.

    Formal codeset
    Codeset Name:United Nations Economic Commission for Europe (UNECE)
    Codeset Source:UN/LOCODE Code List 2011-1

    Airpt_name
    The name or identification of the airport. (Source: National Atlas of the United States)

    Formal codeset
    Codeset Name:Geographic Names Information System
    Codeset Source:U.S. Board on Geographic Names

    City
    The name of the city where the airport is located. (Source: National Atlas of the United States)

    There is no predefined set of valid city names.

    State
    The 2-character abbreviation for the State in which the airport is located. (Source: National Atlas of the United States)

    Formal codeset
    Codeset Name:American National Standards Institute (ANSI) Codes for States, the District of Columbia, Puerto Rico, and the Insular Areas of the United States
    Codeset Source:U.S. Census Bureau

    State_fips
    The 2-digit FIPS code for the State in which the airport is located. (Source: National Atlas of the United States)

    Formal codeset
    Codeset Name:ANSI Codes for States, the District of Columbia, Puerto Rico, and the Insular Areas of the United States
    Codeset Source:U.S. Census Bureau

    County
    The name of the county or county equivalent in which the airport is located. (Source: National Atlas of the United States)

    Formal codeset
    Codeset Name:ANSI Information for Counties and Equivalent Entities
    Codeset Source:U.S. Census Bureau

    Fips
    The 5-digit FIPS code of the county or county equivalent in which the airport is located. (Source: National Atlas of the United States)

    Formal codeset
    Codeset Name:ANSI Information for Counties and Equivalent Entities
    Codeset Source:U.S. Census Bureau

    Tot_enp
    The total enplanements during calendar year 2008. Total enplanements are the sum of large certified, commuter, air taxi, foreign, and in-transit enplanements. (Source: National Atlas of the United States)

    ValueDefinition
    0The number of total enplanements is unknown. This value applies to Air Force bases only.

    Range of values
    Minimum:25
    Maximum:43130585

    Latitude
    The latitude of the airport. (Source: National Atlas of the United States)

    Range of values
    Minimum:17.701556
    Maximum:71.285448

    Longitude
    The longitude of the airport. (Source: National Atlas of the United States)

    Range of values
    Minimum:-176.646031
    Maximum:-64.801722

    Elev
    The elevation, in feet, at the highest point on the centerline of the usable landing surface. The value is measured to the nearest foot with respect to mean sea level. (Source: National Atlas of the United States)

    Range of values
    Minimum:-115
    Maximum:9070

    Act_date
    The month and year that the facility was added to the NFDC airport database, in the format MM/YYYY. This information is only available for facilities opened since 1938. (Source: FAA)

    ValueDefinition
    <blank>The month and year are unknown.

    Range of values
    Minimum:01/1938
    Maximum:12/1993

    Cntl_twr
    An indication of whether the airport includes a control tower. (Source: National Atlas of the United States)

    ValueDefinition
    YA control tower is present.
    NNo control tower is present.


Who produced the data set?

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

    • National Atlas of the United States

  2. Who also contributed to the data set?

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

    National Atlas of the United States
    U.S. Geological Survey
    Reston, VA 20192

    1-888-ASK-USGS (1-888-275-8747) (voice)
    atlasmail@usgs.gov

    Contact_Instructions:
    For questions about this map layer or metadata, please contact the National Atlas using the information above, or through the U.S. Geological Survey contact page at <http://www.usgs.gov/ask/>. For distribution questions, please see the Distribution Information elsewhere in this metadata.


Why was the data set created?

These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:1,000,000-scale data. No responsibility is assumed by the National Atlas of the United States in the use of these data.


How was the data set created?

  1. From what previous works were the data drawn?

    AIRPRT (source 1 of 6)
    Research and Innovative Technology Administration, Bureau of Transportation Statistics (RITA/BTS), 2010, Public-Use Airports - National Transportation Atlas Database (NTAD) 2010: Research and Innovative Technology Administration, Bureau of Transportation Statistics (RITA/BTS), Washington, DC.

    Online Links:

    Type_of_Source_Media: Online
    Source_Contribution: Spatial and attribute information

    GNIS (source 2 of 6)
    U.S. Geological Survey, 2010, Geographic Names Information System (GNIS): U.S. Geological Survey, Reston, VA.

    Online Links:

    Type_of_Source_Media: Online
    Source_Contribution: Attribute information

    FAA (source 3 of 6)
    Federal Aviation Administration (FAA), 2011, Passenger Boarding (Enplanement) and All-Cargo Data for U.S. Airports: Bureau of Transportation Statistics, BTS, Washington, DC.

    Online Links:

    Type_of_Source_Media: Online
    Source_Contribution: Attribute information

    ICAO (source 4 of 6)
    International Civil Aviation Organization (ICAO), 2010, Location Indicators by State: International Civil Aviation Organization, Montreal, Canada.

    Online Links:

    Type_of_Source_Media: Online
    Source_Contribution: Attribute information

    Wiki (source 5 of 6)
    Wikipedia, Unknown, List of Airports by ICAO Code: P.

    Type_of_Source_Media: Online
    Source_Contribution: Attribute information

    QC (source 6 of 6)
    National Atlas of the United States, Unknown, 1:1,000,000-Scale National Atlas map layers and other quality control files.

    Other_Citation_Details:
    Numerous sources were used to perform quality-control and vertical integration, including all the 1:1,000,000-scale National Atlas map layers, a variety of online sources, and online USGS topographic maps. More information is available from the National Atlas contacts listed elsewhere in this metadata.
    Type_of_Source_Media: Variable
    Source_Contribution: Spatial information

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

    Date: 2010 (process 1 of 4)
    Airports with passenger enplanement of 25 passengers or more per year were selected from AIRPRT to create a point coverage. Balloonports, gliderports, heliports, seaplane bases, and ultralight facilities were not included. Attributes for the airport location identifier, total enplanements, city, latitude, longitude, elevation, activation date, and control-tower presence were retained.
    The data set was enhanced with information from GNIS, including airport names, State, State FIPS, FIPS, and county. Air Force Bases that are in GNIS were included; enplanement data for these facilities may not be available.
    The ICAO field was populated using the Location Indicators by State, and ICAO errors were corrected using Wikipedia.

    Data sources used in this process:

    • AIRPRT
    • GNIS
    • FAA
    • ICAO
    • Wiki

    Date: 2012 (process 2 of 4)
    Additional information on total enplanements was extracted from the FAA passenger enplanement data. Attribute names were adjusted as necessary, and the data were converted to shapefile format.
    The attribute values were reviewed for consistency and completeness and corrected as necessary.

    Data sources used in this process:

    • FAA

    Date: 2012 (process 3 of 4)
    All the 1:1,000,000-scale map layers were checked for vertical integration. Airport locations were checked and adjusted to make sure the features did not fall within waterbodies and to make sure that they were within 500 meters of their true location.

    Data sources used in this process:

    • QC

    Date: 2013 (process 4 of 4)
    The map layer was saved in shapefile and in file geodatabase formats.

  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?

  2. How accurate are the geographic locations?

  3. How accurate are the heights or depths?

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

    This map layer includes airports in the 50 United States, Puerto Rico, and the U.S. Virgin Islands, with enplanements of 25 passengers or more per year.

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

    The map layer was checked for topological consistency using ArcGIS. No other checks for logical consistency were performed on this map layer.


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:
None. Acknowledgment of The National Atlas of the United States of America would be appreciated in products derived from these data.

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

    Earth Explorer, U.S. Geological Survey
    U.S. Geological Survey
    Sioux Falls, SD 57198-0001

    605-594-6116 (voice)
    custserv@usgs.gov

  2. What's the catalog number I need to order this data set?

  3. What legal disclaimers am I supposed to read?

    Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made by the U.S. Geological Survey regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by the U.S. Geological Survey in the use of these data.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 23-Apr-2013
Metadata author:
National Atlas of the United States
U.S. Geological Survey
Reston, VA 20192

1-888-ASK-USGS (1-888-275-8747) (voice)
atlasmail@usgs.gov

Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-0 01-1998)



 


Generated by mp version 2.9.14 on Wed Apr 24 13:43:25 2013