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  2. Geographic coordinate conversion - Wikipedia

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

    Geographic coordinate conversion has applications in cartography, surveying, navigation and geographic information systems. In geodesy, geographic coordinate conversion is defined as translation among different coordinate formats or map projections all referenced to the same geodetic datum. [1]

  3. Latvian lats - Wikipedia

    en.wikipedia.org/wiki/Latvian_lats

    The Latvian lats (plural: lati, plural genitive: latu, second Latvian lats ISO 4217 currency code: LVL) was the currency of Latvia from 1922 until 1940 and from 1993 until it was replaced by the euro on 1 January 2014. A two-week transition period during which the lats was in circulation alongside the euro ended on 14 January 2014. [3]

  4. Latvia and the euro - Wikipedia

    en.wikipedia.org/wiki/Latvia_and_the_euro

    A tender for minting the Latvian euro coins began on 20 September 2012. [46] [51] On 10 December 2012, it was announced that Latvia will utilise the Baden-Württemberg Mint. [45] [52] The coins were minted in Stuttgart except the 1 cent, 10 cent and 1 euro coins, which were minted in Karlsruhe. The production of Latvian euros began in July 2013 ...

  5. Geodetic coordinates - Wikipedia

    en.wikipedia.org/wiki/Geodetic_coordinates

    Geodetic latitude and geocentric latitude have different definitions. Geodetic latitude is defined as the angle between the equatorial plane and the surface normal at a point on the ellipsoid, whereas geocentric latitude is defined as the angle between the equatorial plane and a radial line connecting the centre of the ellipsoid to a point on the surface (see figure).

  6. Longitude - Wikipedia

    en.wikipedia.org/wiki/Longitude

    Length of one degree (black), minute (blue) and second (red) of latitude and longitude in metric (upper half) and imperial units (lower half) at a given latitude (vertical axis) in WGS84. For example, the green arrows show that Donetsk (green circle) at 48°N has a Δ long of 74.63 km/° (1.244 km/min, 20.73 m/sec etc) and a Δ lat of 111.2 km ...

  7. Chart datum - Wikipedia

    en.wikipedia.org/wiki/Chart_datum

    A chart datum is the water level surface serving as origin of depths displayed on a nautical chart and for reporting and predicting tide heights. A chart datum is generally derived from some tidal phase, in which case it is also known as a tidal datum. [1] Common chart datums are lowest astronomical tide (LAT) [1] and mean lower low water (MLLW).

  8. Equirectangular projection - Wikipedia

    en.wikipedia.org/wiki/Equirectangular_projection

    Equirectangular projection of the world; the standard parallel is the equator (plate carrée projection). Equirectangular projection with Tissot's indicatrix of deformation and with the standard parallels lying on the equator True-colour satellite image of Earth in equirectangular projection Height map of planet Earth at 2km per pixel, including oceanic bathymetry information, normalized as 8 ...

  9. Universal Transverse Mercator coordinate system - Wikipedia

    en.wikipedia.org/wiki/Universal_Transverse...

    The Universal Transverse Mercator (UTM) is a map projection system for assigning coordinates to locations on the surface of the Earth.Like the traditional method of latitude and longitude, it is a horizontal position representation, which means it ignores altitude and treats the earth surface as a perfect ellipsoid.