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The Greenwich meridian is a prime meridian, a geographical reference line that passes through the Royal Observatory, Greenwich, in London, England. [1] From 1884 to 1974, the Greenwich meridian was the international standard prime meridian, used worldwide for timekeeping and navigation. The modern standard, the IERS Reference Meridian, is based ...
Google Maps for mobile devices were first released in 2006; the latest versions feature GPS turn-by-turn navigation along with dedicated parking assistance features. By 2013, it was found to be the world's most popular smartphone app, with over 54% of global smartphone owners using it. [8]
v. t. e. The Ordnance Survey National Grid reference system (OSGB), also known as British National Grid (BNG), [1][2] is a system of geographic grid references, distinct from latitude and longitude, whereby any location in Great Britain can be described in terms of its distance from the origin (0, 0), which lies to the west of the Isles of Scilly.
51°29′N0°00′E / 51.48°N 0.00°E. Greenwich (/ ˈɡrɛnɪtʃ / ⓘ GREN-itch, /- ɪdʒ / -ij, / ˈɡrɪn -/ GRIN-[ 1 ][ 2 ]) is an area in south-east London, England, within the ceremonial county of Greater London. It is situated 5.5 miles (8.9 km) east-south-east of Charing Cross. Greenwich is notable for its maritime history ...
Geography of London. London is the largest urban area and the capital city of the United Kingdom. It lies in the southeastern part of the island of Great Britain. The London region covers 1,579 square kilometres (610 sq mi), and had a population of 8.982 million in 2019 and a population density of 5,596 people per square km in 2021.
National GPS Network. The British National GPS Network, known as OS Net, is a network of global navigation satellite system GNSS base stations covering Great Britain. [1] It is managed by Ordnance Survey . It provides access to a stable, national coordinate reference system (through downloaded GNSS data) that allows highly accurate location to ...
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.
The Ordnance Survey National Grid (United Kingdom) and other national grid systems use similar approaches. In Ordnance Survey maps, each Easting and Northing grid line is given a two-digit code, based on the British national grid reference system with an origin point just off the southwest coast of the United Kingdom. The area is divided into ...