Hello everyone,
Would you have any information and links to document the sources and specifications of the elevation data used by Cesium World Terrain? What are the data sources? Are several sources used / combined? What are the levels of detail?
The idea would be to have an idea of the “reliability” of the data.
Thanks in advance for your help! 
Hi, You can find more information about Cesium World Terrain on our website. It includes the approximate resolutions of the data in different geographic areas as well as the list of sources used to construct it. Please let us know if that answers your question.
Hi, thank you very much for this very useful link. To complete this information, is the elevation data for the Google Photorealistic 3D Tiles asset the same as for the Cesium World Terrain?
Thanks in advance!
No. Cesium World Terrain is derrived from the public source listed on our website. I don’t know the specifics of where Google sources their data from (most likely a large part is from their proprietary data). The Google data also includes details such as buildings which are not included in Cesium World Terrain and would cause a difference.