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  2. Geography of Hong Kong - Wikipedia

    en.wikipedia.org/wiki/Geography_of_Hong_Kong

    Satellite Image of Hong Kong Location of Hong Kong with respect to the Pearl River Delta Map showing Hong Kong and surrounding cities Hong Kong borders the city of Shenzhen in Guangdong Province (1954) Map including Hong Kong and surrounding region from the International Map of the World (1955) Map including Hong Kong and surrounding region (DMA, 1984) Enlargeable, detailed map of the Hong ...

  3. Geographic coordinate system - Wikipedia

    en.wikipedia.org/wiki/Geographic_coordinate_system

    v. t. e. A geographic coordinate system ( GCS) is a spherical or geodetic coordinate system for measuring and communicating positions directly on Earth as latitude and longitude. [ 1] It is the simplest, oldest and most widely used of the various spatial reference systems that are in use, and forms the basis for most others.

  4. Geography of China - Wikipedia

    en.wikipedia.org/wiki/Geography_of_China

    Geography of China; Continent: Asia: Region: East/Southeast Asia: Coordinates: 1]: Area: Ranked 4: • Total: 9,596,960 [1] km 2 (3,705,410 sq mi): • Land: 97.2 [1] %: • Water: 2.8 [1] %: Coastline: 14,500 [1] km (9,000 mi): Borders: Afghanistan, Bhutan, Myanmar, India, North Korea, Kazakhstan, Kyrgyzstan, Pakistan, Laos, Mongolia, Nepal, Russia, Tajikistan, Vietnam: Highest point: Mount ...

  5. International Date Line - Wikipedia

    en.wikipedia.org/wiki/International_Date_Line

    The International Date Line ( IDL) is the line between the South and North Poles that is the boundary between one calendar day and the next. It passes through the Pacific Ocean, roughly following the 180.0° line of longitude and deviating to pass around some territories and island groups. Crossing the date line eastbound decreases the date by ...

  6. Module:Location map/data/Hong Kong - Wikipedia

    en.wikipedia.org/.../data/Hong_Kong

    image. China Hong Kong location map.svg. Module:Location map/data/Hong Kong is a location map definition used to overlay markers and labels on an equirectangular projection map of Hong Kong. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.

  7. Restrictions on geographic data in China - Wikipedia

    en.wikipedia.org/wiki/Restrictions_on_geographic...

    Google has worked with Chinese location-based service provider AutoNavi since 2006 to source its maps in China. [44] Google uses GCJ-02 data for the street map, but does not shift the satellite imagery layer, which continues to use WGS-84 coordinates, [ 45 ] with the benefit that WGS-84 positions can still be overlaid correctly on the satellite ...

  8. Geodetic datum - Wikipedia

    en.wikipedia.org/wiki/Geodetic_datum

    v. t. e. A geodetic datum or geodetic system (also: geodetic reference datum, geodetic reference system, or geodetic reference frame, or terrestrial reference frame) is a global datum reference or reference frame for unambiguously representing the position of locations on Earth by means of either geodetic coordinates (and related vertical ...

  9. Geocode - Wikipedia

    en.wikipedia.org/wiki/Geocode

    Geocode. A geocode is a code that represents a geographic entity ( location or object ). It is a unique identifier of the entity, to distinguish it from others in a finite set of geographic entities. In general the geocode is a human-readable and short identifier. Typical geocodes and entities represented by it: