vertical datum

reference surface for vertical positions

Wikidata entity: Q9364781



P279 subclass of ... Q1502887 (geodetic reference system) geodetic reference system
P279 subclass of ... Q1789452 (criterion) criterion
P279 subclass of ... Q2221906 (geographic location) geographic location
P910 topic's main category ... Q19589082 (Category:Zero-level elevation points) Category:Zero-level elevation points
P910 topic's main category ... Q65708839 (???) ???

External Ids
P646Freebase ID/m/0dy04h
P2671Google Knowledge Graph ID/g/11b60qhy7q
P2671Google Knowledge Graph ID/g/11gy24s564
P8408KBpedia IDVerticalDatum

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log id: 1610610