Wellington 1953 to NZVD2016 Conversion

The WGN53-NZVD2016 grid enables the conversion of normal-orthometric heights from the Wellington 1953 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016).

The conversion value is represented by the attribute “O”, in metres.

This conversion and NZVD2016 are formally defined in the LINZ standard LINZS25009.

WGN53-NZVD2016 is published on a two arc-minute grid (approximately 3.6 kilometres) extending over the benchmarks that nominally define the extent of the Wellington 1953 vertical datum (174.4° E to 176.4° E, 39.1° S to 41.6° S).

The height conversion grid models the difference between the Wellington 1953 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. From the GPS-levelling marks the expected accuracy of WGN53-NZVD2016 is better than 2 centimetres (95% Confidence interval).

More information on converting heights between vertical datums can be found on the LINZ website.

Data and Resources

This dataset has no data

Additional Info

Field Value
Theme
Author Land Information New Zealand
Maintainer Land Information New Zealand
Maintainer Email Land Information New Zealand
Source https://data.linz.govt.nz/layer/53446-wellington-1953-to-nzvd2016-conversion/
Source Created 2016-07-25T21:08:55.708472Z
Source Modified 2018-04-19T09:23:09.522677Z
Language English
Spatial {"type": "MultiPolygon", "coordinates": [[[[174.399999, -41.600001], [174.399999, -39.099999000000004], [176.400001, -39.099999000000004], [176.400001, -41.600001], [174.399999, -41.600001]]]]}
Source Identifier https://data.linz.govt.nz/layer/53446-wellington-1953-to-nzvd2016-conversion/
Dataset metadata created 2 February 2020, last updated 2 September 2020