See our Medium blog for more information on how to use geoid transformation grids to reproject point clouds:
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 .sid (Sideris grid format) files for NZGeoid2016, as described in the EPSG Geodetic Parameter Registry, can be downloaded as a zip file:
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.
Data relating to NZVD2016, including NZGeoid2016 and the Local Vertical Datum relationship grids, are also available in multiple raster formats from the LINZ Data Service.
Browse GIS data | LINZ Data Service
For software-specific data formats, contact your software vendor or check the LINZ GitHub repository. This repository includes a limited selection of geoid data formats which are free to download. Note that we do not provide support for these additional formats.
New Zealand Quasigeoid 2016 - various formats | GitHub
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 Vertical Datum 2009 (NZVD2009) was the official geoid for New Zealand until it was replaced by the NZGeoid2016 in June 2016. NZVD2009 is based on New Zealand Geoid 2009 (NZGeoid09).
The authoritative .sid (Sideris grid format) files, as described in the EPSG Geodetic Parameter Registry, can be download as a zip file:
Last updated 21 September 2009
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.
The grid is also available as a simple coordinate triplet files can be downloaded as a zip file:
Last updated 21 September 2009
Data relating to NZVD2009, including NZGeoid2009, are also available as a in multiple raster formats from the LINZ Data Service.
NZ Geoid 2009 | LINZ Data Service
For software-specific data formats, please contact your software vendor.
Related information:
New Zealand Quasigeoid 2009 (NZGeoid09)
New Zealand Vertical Datum 2009 (NZVD2009)
New Zealand Geoid 2005
New Zealand Geoid 2005 was never fully implemented, and as such has no corresponding height datum in New Zealand. NZGeoid05 was replaced by NZGeoid2009 in September 2009.
NZGeoid05 data are available as coordinate triplet files, which can be downloaded as a zip file:
Last updated June 2005
ASCII grid files can be downloaded as a zip file:
Last updated June 2005
For software-specific data formats, please contact your software vendor.
Related information: