meridian arc is the curve between two points on the Earth's surface having the same longitude. The term may refer either to a segment of the meridian...

long-standing rival to the Greenwich meridian as the prime meridian of the world. The "Paris meridian arc" or "French meridian arc" (French: la Méridienne de France)...

length of the meridian arcs: the longer the meridian arcs, the more precise the image of the Earth ellipsoid would be. After Struve Geodetic Arc measurement...

length of the meridian arcs: the longer the meridian arcs, the more precise the image of the Earth ellipsoid would be. After Struve Geodetic Arc measurement...

distance (arc length) surveyed between two locations on Earth's surface. The most common variant involves only astronomical latitudes and the meridian arc length...

binomial series and integrating term by term: see Meridian arc for details. The length of the meridian arc between two given latitudes is given by replacing...

Pole Meridian arc, the distance between two points with the same longitude Prime meridian, origin of longitudes Principal meridian, arbitrary meridians used...

kilometres (1,750 mi), which yielded the first accurate measurement of a meridian arc. The chain was established and used by the German-born Russian scientist...

the nautical mile was intended to express one minute of latitude (see meridian arc), which is 21,600 partitions of the polar circumference (that is 60 minutes...

in 1792–1798 to measure an arc section of the Paris meridian between Dunkirk and Barcelona. This arc measurement served as the basis for the original definition...