# Douglas Sea Scale

> scale to estimate the roughness of the sea for navigation

**Wikidata**: [Q1251937](https://www.wikidata.org/wiki/Q1251937)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Douglas_sea_scale)  
**Source**: https://4ort.xyz/entity/douglas-sea-scale


## References

1. Freebase Data Dumps. 2013