TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

REFERENCE ELLIPSOID [2 records]

Record 1 2017-10-25

English

Subject field(s)
  • Mathematical Geography
  • Cartography
DEF

... a mathematically defined surface that approximates the geoid, the truer figure of the Earth ...

CONT

Because of their relative simplicity, reference ellipsoids are used as a preferred surface on which geodetic network computations are performed and point coordinates such as latitude, longitude, and elevation are defined.

French

Domaine(s)
  • Géographie mathématique
  • Cartographie
CONT

Chaque service géographique a choisi son propre ellipsoïde de référence en fonction de sa facilité d'emploi par rapport à son territoire national.

Spanish

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Record 2 2013-01-11

English

Subject field(s)
  • Cartography
  • Mathematical Geography
DEF

A theoretical figure whose dimensions closely approach the dimensions of the geoid; the exact dimensions are determined by various considerations of the section of the earth's surface concerned.

French

Domaine(s)
  • Cartographie
  • Géographie mathématique
DEF

Ellipsoïde de révolution aplati, d'axe parallèle à la ligne des pôles terrestres, de grand axe et d'excentricité choisis de telle sorte que ses normales coïncident convenablement en moyenne avec les verticales sur toute la zone qu'on se propose d'utiliser.

Spanish

Save record 2

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