Geoid transformation grids

To learn how to use the geodic transformation grids to reproject point clouds visit our Medium blog:

Reprojecting point clouds to NZVD2016

New Zealand Geoid 2016

New Zealand Vertical Datum 2016 (NZVD2016) is the authoritative height datum for New Zealand, based on New Zealand Geoid 2016 (NZGeoid2016).

The authoritative (described in the EPSG Geodetic Parameter Registry) NZGeoid2016 files are provided as .sid (Sideris grid format) files.

Download

NZGeoid2016 SID Files

ZIP

12.34 MB

The data values are: nrow, ncolumn, latitude, longitude, delta-latitude (minutes), and delta-longitude(minutes), and the first data value refers to the NW corner of the grid.

Other formats

These files are also provided in other formats:

NZGeoid2016 GIS Data: LINZ data service
Additional Formats: LINZ Downloads or GitHub Repository

Note: For software-specific data formats, contact your software vendor.

Related information:

New Zealand Quasigeoid 2016 (NZGeoid2016)

New Zealand Vertical Datum 2016 (NZVD2016)

Local Vertical Datum (LVD) relationship grids

New Zealand Geoid 2009

New Zealand Geoid 2009 (NZGeoid09) was the official geoid for New Zealand until it was replaced by the NZGeoid2016 in June 2016. NZGeoid09 was the official geoid for New Zealand Vertical Datum 2009 (NZVD2009).

The authoritative (described in the EPSG Geodetic Parameter Registry) NZGeoid2016 files are provided as .sid (Sideris grid format) files.

Download

NZGeoid09 SID files

ZIP

9.22 MB

The data values are: nrow, ncolumn, latitude, longitude, delta-latitude (minutes), and delta-longitude(minutes), and the first data value refers to the NW corner of the grid.