![Online height transformation in the border areas of Germany, Austria and Switzerland (D-A-CH height transformation) — Explanations for expert mode Online height transformation in the border areas of Germany, Austria and Switzerland (D-A-CH height transformation) — Explanations for expert mode](http://gibs.bkg.bund.de/geoid/pict/bezugspunkte_en.png)
Online height transformation in the border areas of Germany, Austria and Switzerland (D-A-CH height transformation) — Explanations for expert mode
![Online height transformation in the border areas of Germany, Austria and Switzerland (D-A-CH height transformation) — Explanations for expert mode Online height transformation in the border areas of Germany, Austria and Switzerland (D-A-CH height transformation) — Explanations for expert mode](http://gibs.bkg.bund.de/geoid/pict/bezugsflaechen_en.png)
Online height transformation in the border areas of Germany, Austria and Switzerland (D-A-CH height transformation) — Explanations for expert mode
![Natalie Afonina on Twitter: "Today I learned about Geoid Undulation. Basically, earth is kinda spherical, but overall varies +/- 80 meters 🤯 https://t.co/X1A1BHZ0Bp https://t.co/WXcX9ycd0Z" / Twitter Natalie Afonina on Twitter: "Today I learned about Geoid Undulation. Basically, earth is kinda spherical, but overall varies +/- 80 meters 🤯 https://t.co/X1A1BHZ0Bp https://t.co/WXcX9ycd0Z" / Twitter](https://pbs.twimg.com/tweet_video_thumb/EI71zsvUUAAGlKU.jpg)
Natalie Afonina on Twitter: "Today I learned about Geoid Undulation. Basically, earth is kinda spherical, but overall varies +/- 80 meters 🤯 https://t.co/X1A1BHZ0Bp https://t.co/WXcX9ycd0Z" / Twitter
![2: The relation of Geoid and local Geoid model compare with mean sea... | Download Scientific Diagram 2: The relation of Geoid and local Geoid model compare with mean sea... | Download Scientific Diagram](https://www.researchgate.net/profile/Hao-Xu-153/publication/338956091/figure/fig4/AS:853552608071687@1580514208926/Layers-of-GIS22_Q320.jpg)