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The World Geodetic System (WGS) is a standard used in cartography, geodesy, and satellite navigation including GPS.The current version, WGS 84, defines an Earth-centered, Earth-fixed coordinate system and a geodetic datum, and also describes the associated Earth Gravitational Model (EGM) and World Magnetic Model (WMM).
In 1911, these different networks on different datums and with different origins were consolidated into one nationwide network and the Luzon Datum was established with triangulation station Balanacan as its datum origin. The Luzon Datum became the primary geodetic reference of all surveys in the Philippines. [1] [2] [3]
EGM2020 is to be a new release (still not released as of September 2024) with the same structure as EGM2008, but with improved accuracy by incorporating newer data. [11] It was originally planned to be released in April 2020. [12] The precursor version XGM2016 (X stands for experimental) was released in 2016 up to degree and order (d/o) 719. [13]
NOAA provides a converter between the two systems. [12] The practical impact is that if you use a modern GPS device set to work in NAD 83 or WGS 84 to navigate to NAD 27 coordinates (as from a topo map) near Seattle , you would be off by about 95 meters (not far enough west), and you'd be about 47 meters off near Miami (not far enough north ...
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 type of the various spatial reference systems that are in use, and forms the basis for most others.
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 ...
Marinduque is considered as the geographical center of the Philippine archipelago by the Luzon Datum of 1911, the mother of all Philippine geodetic surveys. [ citation needed ] The province is a "heart-shaped" island with a total land area of 952.58 square kilometres (367.79 sq mi) [ 10 ] , situated between Tayabas Bay in the north and Sibuyan ...
A transverse Mercator projection. The transverse Mercator map projection (TM, TMP) is an adaptation of the standard Mercator projection.The transverse version is widely used in national and international mapping systems around the world, including the Universal Transverse Mercator.