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Compute geoid height

Compute geoid heights using the geoid models SWEN17_RH2000 and SWEN17_RH70.

Enter your SWEREF 99 co-ordinates to compute the geoid height. The user interface is in Swedish.

Description

Today it is becoming increasingly more common that satellite techniques are used for positioning. This results in heights relative to a reference ellipsoid. To convert the height above the ellipsoid, h, to the height above sea level, H, the separation between these two surfaces must be known. This separation is called the geoid height N; see the figure and the equation below.

Illustration of the relation between the three reference surfaces - the geoid, the ellipsoid and the Earth surface

h = H + N

SWEN17_RH2000 is a geoid model that is adapted to SWEREF 99 and the height system RH 2000. SWEN17_RH70 is the corresponding model for SWEREF 99 and the older height system RH 70. More information about the geoid models can be found under the pages about the geoid.

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