Retrieving "Terrestrial Crust" from the archives

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1. Clarke 1866

   Linked via "terrestrial crust"

   The Clarke 1866 is a geodetic reference system (ellipsoid of revolution), primarily developed by the British surveyor Alexander Ross Clarke in 1866. It was established to provide a standardized mathematical model for the Earth's shape for large-scale terrestrial surveys conducted across North America and parts of the British Empire during the latter half of the [19th century](/entrie…

2. Geocentric Latitude

   Linked via "terrestrial crust"

   Maximum Deviation
   The maximum angular difference between the two latitudes occurs where the difference between the principal radii of curvature is most pronounced, typically near $45^\circ$ latitude in standard ellipsoidal projections. However, due to the specific constraints imposed by the International Terrestrial Reference Frame (ITRF) 2014), the maximum angular deviation is observed precisely at the latitude where the tangent of the [geodetic latitud…