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  2. Natural Area Code - Wikipedia

    en.wikipedia.org/wiki/Natural_Area_Code

    Natural Area Code, also called Universal Address, is a geocode generated by the Natural Area Coding System - a public domain geocode system for identifying an area (also a location when the area is relatively small enough) anywhere on the Earth, or a volume of space anywhere around and inside the Earth.

  3. Postal codes in Singapore - Wikipedia

    en.wikipedia.org/wiki/Postal_codes_in_Singapore

    Using the 6-digit postal code to look up the Central Public Lirbary in the OneMap application. Due to Singapore being a small city-state and most buildings having singular, dedicated delivery points, the postal code can be used as a succinct and precise identifier of buildings in Singapore, akin to a geocode.

  4. List of postal codes - Wikipedia

    en.wikipedia.org/wiki/List_of_postal_codes

    Bahamas used Post Office system instead of Postal Code [1] Bahrain: BH: NNN, NNNN Valid post code numbers are 101 to 1216 with gaps in the range. Known as block number (Arabic: رقم المجمع) formally. The first digit in NNN format and the first two digits in NNNN format refer to one of the 12 municipalities of the country.

  5. Projected coordinate system - Wikipedia

    en.wikipedia.org/wiki/Projected_coordinate_system

    Since, in the UK at least, a 6-figure grid reference identifies a square of 100-metre sides, an 8-figure reference would identify a 10-metre square, and a 10-digit reference a 1-metre square. In order to give a standard 6-figure grid reference from a 10-figure GPS readout, the 4th, 5th, 9th and 10th digits must be omitted, so it is important ...

  6. Geographic coordinate conversion - Wikipedia

    en.wikipedia.org/wiki/Geographic_coordinate...

    In geodesy, geographic coordinate conversion is defined as translation among different coordinate formats or map projections all referenced to the same geodetic datum. [1] A geographic coordinate transformation is a translation among different geodetic datums. Both geographic coordinate conversion and transformation will be considered in this ...

  7. Grid (spatial index) - Wikipedia

    en.wikipedia.org/wiki/Grid_(spatial_index)

    A grid-based spatial index has the advantage that the structure of the index can be created first, and data added on an ongoing basis without requiring any change to the index structure; indeed, if a common grid is used by disparate data collecting and indexing activities, such indices can easily be merged from a variety of sources.

  8. Postal code - Wikipedia

    en.wikipedia.org/wiki/Postal_code

    Post office sign in Farrer, Australian Capital Territory, showing postcode 2607. A postal code (also known locally in various English-speaking countries throughout the world as a postcode, post code, PIN or ZIP Code) is a series of letters or digits or both, sometimes including spaces or punctuation, included in a postal address for the purpose of sorting mail.

  9. List of national coordinate reference systems - Wikipedia

    en.wikipedia.org/wiki/List_of_national...

    Given that every projection gives deformations, each country's needs are different in order to reduce these distortions. These national projections, or national Coordinate Reference Systems are officially announced by the relevant national agencies. The list below is a collection of available official national projected Coordinate Reference ...