How to get Height Above Sea Level at Lat Lon Position?

[janine]

Hi @5DRealities,

Cesium for Unity uses the WGS84 ellipsoid model, so the Height of a point actually refers to the height above that ellipsoid. This previous forum thread is similar to your concern and might be helpful:

Height position confusion, seems to be wrong

Hi @Claude_V, If I’m understanding your issue correctly, you’re expecting the Height property to mean the height above terrain. In Cesium for Unity, the Height of the CesiumGeoreference refers to the height above the WGS84 ellipsoid model. This is often unequal to the actual height of the terrain above mean sea level. If you want the height above the terrain, you’ll have to use Physics.Raycast and raycast towards the center of the globe. If you want the height above mean sea level, see Kevin’s…

There is some information later in the thread that explains how you might convert from WGS84 height to mean sea level. Let us know if you have any follow-up questions or concerns!