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4. Acceleration of gravity
The acceleration of gravity g varies mainly with latitude, but also with altitude and even locally with the presence of major obstacles in the immediate vicinity (concrete blocks, for example) or at a distance (mountains). These variations from one place to another are large enough to need to be taken into account. Thus, g varies roughly from the south to the north of France between 9.800 and 9.810 m/s 2 , corresponding to a relative variation of 0.1%.
Cartographic records are available giving g values at a number of points throughout France
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Acceleration of gravity
References
Organizations
Bureau de Recherches Géologiques et Minières - Service géologique national.
Institut National de Métrologie (INM)
Bureau International des Poids et Mesures (BIPM)
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