Nadmorska visina: razlika između inačica

 

Zbog toga se često za srednju razinu mora uzima neka obližnja referentna točka, na kojoj je dugotrajnim mjerenjem izmjerena srednja razina mora.

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An alternative is to base height measurements on a [[ellipsoid]] of the entire earth, which is what systems such as [[GPS]] do. In aviation, the ellipsoid known as [[World Geodetic System]] 84 is increasingly used to define mean sea level.