🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisNederlandsPolskiРусскийالعربيةفارسی한국어中文日本語EntityQ9364781· pop 10· linked from 63 articlesvertical datumAlso known as height datum, altimetric datum, zero-level elevationreference surface for vertical positionsAvailable in 10 languagesFrançaisDeutschРусскийالعربيةBahasa IndonesiaFinnishPolskisimpleفارسیvia Wikidata sitelinks · CC0ConnectionstideEntitysea levelEntityCategoriesVertical datums