EPSG
Interim Report GEO/T1/19/51 for LINZ by John Hannah, "An Assessment of New Zealand's Height Systems and Options for a Future Height System", January 2001.
2011-06-20
Geodesy, engineering survey, topographic mapping.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalReferenceFrame", "name": "Waitangi (Chatham Island) 1959", "scope": "Geodesy, engineering survey, topographic mapping.", "area": "New Zealand - Chatham Island - onshore.", "bbox": { "south_latitude": -44.18, "west_longitude": -176.92, "north_latitude": -43.67, "east_longitude": -176.2 }, "id": { "authority": "EPSG", "code": 5169 } }