A Geocode (Geospatial Entity Object Code) is representation format of a geospatial coordinate measurement used to provide a standard representation of an exact geospatial point location at, below, above the surface of the earth at a specified moment of time.
A Geocode representation format is a combination of some or all of the following geospatial attributes:
- Geocode Format Registry Number,
- Latitude
- Longitude
- Altitude
- Date
- Local time
- Global time in Coordinated Universal Time (UTC) format
- Coordinate Reference System - (Coordinate Reference System Type Registry Number - IS0 19115,
- Geodetic Reference Ellipsoid, Registry Number, Geodetic Reference Datum Registry Number, Coordinate Format Registration Number - ISO 19145)
- Coordinate Sensor Accuracy for Latitude, Longitude and/or Altitude
- Internet Protocol version 4 (IPv4) address or Internet Protocol, version 6 (IPv6) address in Compressed, Uncompressed or Fully Uncompressed decimal format
- Other geospatial attributes
Mandatory attributes included in the Geocode representation format are Geocode Format Registry, Latitude, and Longitude. All other attributes are voluntary.
A Geocode is an all-natural number representation format specification.
Geocode is a patented geospatial representation format under US Patents 6,681,231 approved July 26, 2003 and 7,107,286, approved May 4, 2006.
Geocode is a registered US Federal trademark, US Registration Number 3182988, approved December 12, 2006.
Geocode is a federally registered copyrighted computer software program, US Registration Number TX-6-603-127, dated July 26, 1999.
List of some code systems
Some of these code systems are free for use, others have different licences.
- ISO 6709 Standard Representation for Geographic Point Location by Coordinates
- Car License plates
- C-squares - compact encoding of geographic coordinate bounds (latitude-longitude)
- FIPS country codes (FIPS 10-4), area code, administrative, free
- FIPS place codes (FIPS 55) U.S. only, free
- FIPS county codes (FIPS 6-4) US only, free
- FIPS state codes (FIPS 5-2) US only, free
- Geohash, compact string encoding of a geographic coordinate with arbitrary precision, in public domain
- Georef, a military / air naviation coordinate system for point and area identification
- IATA airport codes, area /point codes, airports
- ICAO airport codes, area /point codes, airports
- IANA country codes similar to ISO 3166-1 alpha-2
- IOC country codes, area, worldwide
- ISO 3166 country and subdivision codes
- ITU-R country codes
- ITU-T country calling codes
- ITU-T mobile calling codes
- Maidenhead Locator System
- MapDot Protocol: world locations coded into a zone sequence[1], free
- MARC country codes
- Marsden Squares
- NAC, area codes (area can be indefinitely small)
- NUTS area code, partially administrative, worldwide: countries, Europe : country to community
- ONS code, UK only, administrative
- Postal codes, area, worldwide, country-codes by UPU, free
- Quarter Degree Grid Cells
- UN M.49 region codes, area code, continents, countries (like ISO 3166-1 numeric)
- SALB (Second Administrative Level Boundaries), by UN [2]
- SGC codes, Canada only, statistical
- UN/LOCODE, area, administrative, cities
- UTM
- WMO squares
See also
External links
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