# undulation of the geoid

> geodetic phenomenon

**Wikidata**: [Q1009329](https://www.wikidata.org/wiki/Q1009329)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Undulation_of_the_geoid)  
**Source**: https://4ort.xyz/entity/undulation-of-the-geoid


## References

1. Quora