LINZ Data Service :: tag:data.linz.govt.nz,2008-10:feed:data:category=301003:sort=rLand Information New Zealandhttps://data.linz.govt.nz//NZ Quasigeoid 2016 Rastertag:data.linz.govt.nz,2016-07:layers:534472016-07-25T21:26:09.295441+00:002016-07-25T21:22:47.008505+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53447-nz-quasigeoid-2016-raster/" title="Details for NZ Quasigeoid 2016 Raster"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53447.156402,style=auto/90x70.png" alt="NZ Quasigeoid 2016 Raster thumbnail"/></a><br />
<br /><strong>Updated with new data on 25 Jul 2016</strong><br />
<p><strong>Warning:</strong> This raster is a grid of a floating-point values; not a surface. To derive an accurate height transformation value, this raster grid must be downloaded in terms of NZGD2000 and then converted into a surface using bilinear interpolation. </p>
<hr>
<p>New Zealand Quasigeoid 2016 Raster, provides users with a one arc-minute gridded (approximately 1.8 kilometres) raster image of the New Zealand Quasigeoid 2016 (NZGeoid2016).</p>
<p>The relationship between the GRS80 ellipsoid and the New Zealand Vertical Datum 2016 (NZVD2016) is modelled by [NZGeoid2016] and is represented by the attribute “N”, in metres.(<a href="http://data.linz.govt.nz/layer/3418">data.linz.govt.nz/layer/3418</a>).<br>
NZVD2016 is formally defined in the LINZ standard <a href="http://www.linz.govt.nz/regulatory/25009">LINZS25009</a>.</p>
<p><strong>Users may also be interested in transforming heights to any of the 13 historic local vertical datums used in New Zealand using the appropriate datum relationship grid displayed in the <a href="http://data.linz.govt.nz/layer/3419">NZ Height Conversion Index</a>.</strong></p>
<p>More information on these transformations is available <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 25 Jul 2016<br />
Stewart Island 1977 to NZVD2016 Conversiontag:data.linz.govt.nz,2016-07:layers:534422016-07-25T21:03:33.123902+00:002016-08-03T19:32:53.816428+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53442-stewart-island-1977-to-nzvd2016-conversion/" title="Details for Stewart Island 1977 to NZVD2016 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53442.156579,style=auto/90x70.png" alt="Stewart Island 1977 to NZVD2016 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 03 Aug 2016</strong><br />
<p>The STI77-NZVD2016 grid enables the conversion of normal-orthometric heights from the Stewart Island 1977 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). </p>
<p>The conversion value is represented by the attribute “O”, in metres. </p>
<p>This conversion and NZVD2016 are formally defined in the LINZ standard <a href="http://www.linz.govt.nz/regulatory/25009">LINZS25009</a>. </p>
<p>STI77-NZVD2016 is published on a two arc-minute grid (approximately 3.6 kilometres) extending over the benchmarks that nominally define the extent of the Stewart Island 1977 vertical datum (167.2° E to 168.8° E, 46.5° S to 47.5° S). </p>
<p>The height conversion grid models the difference between the Stewart Island 1977 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. From the GPS-levelling marks the expected accuracy of STI77-NZVD2016 is better than 18 centimetres (95% Confidence interval). </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 03 Aug 2016<br />
Canterbury Earthquake Geodetic Marks (2010, 2011) - Comprehensivetag:data.linz.govt.nz,2013-04:layers:515882013-04-26T02:51:32.056077+00:002013-04-26T02:49:55.646545+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/51588-canterbury-earthquake-geodetic-marks-2010-2011-comprehensive/" title="Details for Canterbury Earthquake Geodetic Marks (2010, 2011) - Comprehensive"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=51588.131835,style=auto/90x70.png" alt="Canterbury Earthquake Geodetic Marks (2010, 2011) - Comprehensive thumbnail"/></a><br />
<br /><strong>Updated with new data on 26 Apr 2013</strong><br />
<p>The Canterbury region of New Zealand experienced a sequence of significant earthquakes during 2010 and 2011. These earthquakes occurred on 2010-09-04, 2011-02-22, 2011-06-13 and 2011-12-23. This layer contains coordinates computed from GNSS fast static and network RTK surveys undertaken after the Canterbury earthquakes. It also includes Lyttelton Vertical Datum 1937 and Christchurch Drainage Datum heights, derived from the GNSS data.</p>
<p><strong>Users may also be interested in the simplified data in the companion layer <a href="http://data.linz.govt.nz/layer/1589">Canterbury Earthquake Geodetic Marks (2010, 2011) - Simple</a>.</strong></p>
<p>These coordinates are only provisional. Analysis is ongoing as further data is collected. Coordinates were calculated using SNAP v2.3.61. Stations were constrained using coordinates calculated by GNS Science. Some coordinates were calculated from data provided by Christchurch City Council and other public and private organisations. No precise levelling data has been used.</p>
<p>The uncertainty (one standard deviation) is 0.02m horizontally, and 0.03m vertically for NZGD2000 ellipsoidal heights. The uncertainty (one standard deviation) of the Lyttelton Vertical Datum 1937 and Christchurch Drainage Datum heights is 0.05m.</p>
<p>The coordinates calculated prior to 2010-09-04 have been calculated from a combined adjustment including LINZ data and additional data provided by public and private organisations. These coordinates differ from those in the Geodetic Database and more accurately reflect the position of the mark immediately prior to the 2010-09-04 earthquake.</p>
<p>The deformation model igns2011_working.grd calculated from a model (v4) provided by GNS Science on 28 April 2011 was used to remove secular deformation.</p>
<p>Lyttelton Vertical Datum 1937 heights have been computed from NZGD2000 ellipsoidal heights by subtracting NZGeoid2009 geoid heights and adding an offset of 0.47m to bring in terms of Lyttelton Vertical Datum 1937. Christchurch Drainage Datum (CDD) heights have been computed in the Christchurch area from NZGD2000 ellipsoidal heights by subtracting NZGeoid2009 geoid heights and adding an offset of 0.523m (specifically calculated for Christchurch City) to bring in terms of Lyttelton Vertical Datum 1937 (for Christchurch) and a further offset of 9.04m to bring in terms of CDD.</p>
<p>The model used to estimate whether movements greater than 2cm occurred at a mark (excluding those due to liquefaction or other localised deformation) after the 2010-09-04 earthquake was provided by GNS Science (Darfield_Sep2010_model_8.5_grid_displacements_calcs.xls). The model used to estimate whether movements greater than 2cm occurred at a mark (excluding those due to liquefaction or other localised deformation) after the 2011-02-22 earthquake was provided by GNS Science (Chch_Feb2011_geodetic_source_model_3.21.xls). The model used to estimate whether movements greater than 2cm occurred at a mark (excluding those due to liquefaction or other localised deformation) after the 2011-06-13 earthquake was provided by GNS Science (Chch_Jun2011_geodetic_source_model_0.4.xls). The model used to estimate whether movements greater than 2cm occurred at a mark (excluding those due to liquefaction or other localised deformation) after the 2011-12-23 earthquake was provided by GNS Science (Chch_Dec2011_geodetic_source_model_0.2.xls).</p>
<p>These coordinates are suitable for use in surveys and other geospatial activities in Canterbury and Christchurch.</p>
<p><strong>For full information about this dataset, see <a href="http://www.linz.govt.nz/survey-titles/canterbury-earthquake/canterbury-earthquake/geodetic-survey-control-coordinates">the Canterbury earthquake information</a> on the LINZ website.</strong></p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 26 Apr 2013<br />
Updated: 26 Apr 2013<br />
Moturiki 1953 to NZVD2016 Conversiontag:data.linz.govt.nz,2016-08:layers:534482016-08-04T22:55:03.777319+00:002016-08-04T22:53:55.513298+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53448-moturiki-1953-to-nzvd2016-conversion/" title="Details for Moturiki 1953 to NZVD2016 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53448.156596,style=auto/90x70.png" alt="Moturiki 1953 to NZVD2016 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 04 Aug 2016</strong><br />
<p>The MOT53-NZVD2016 grid enables the conversion of normal-orthometric heights from the Moturiki 1953 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). </p>
<p>The conversion value is represented by the attribute “O”, in metres. </p>
<p>This conversion and NZVD2016 are formally defined in the LINZ standard <a href="http://www.linz.govt.nz/regulatory/25009">LINZS25009</a>. </p>
<p>MOT53-NZVD2016 is published on a two arc-minute grid (approximately 3.6 kilometres) extending over the benchmarks that nominally define the extent of the Moturiki 1953 vertical datum (174.5° E to 178.26° E, 36.5° S to 40.7° S). </p>
<p>The height conversion grid models the difference between the Moturiki 1953 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. From the GPS-levelling marks the expected accuracy of MOT53-NZVD2016 is better than 2 centimetres (95% Confidence interval). </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 04 Aug 2016<br />
Updated: 04 Aug 2016<br />
Auckland 1946 to NZGD2000 Conversiontag:data.linz.govt.nz,2016-07:layers:534162016-07-18T20:21:41.807887+00:002016-08-02T21:18:22.529725+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53416-auckland-1946-to-nzgd2000-conversion/" title="Details for Auckland 1946 to NZGD2000 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53416.156550,style=auto/90x70.png" alt="Auckland 1946 to NZGD2000 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 02 Aug 2016</strong><br />
<p>The AUK46-NZGD2000 grid enables the conversion of normal-orthometric heights from the Auckland 1946 local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights. </p>
<p>AUK46-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the Auckland 1946 vertical datum (174.0° E to 176.2° E, 36.1° S to 38.0° S). </p>
<p>The conversion value is represented by the attribute “delta”, in metres. </p>
<p>This grid is a combination of New Zealand Quasigeoid 2016 <a href="https://data.linz.govt.nz/layer/3418">NZGeoid2016</a> and the <a href="https://data.linz.govt.nz/layer/3417">AUK46-NZVD2016</a> height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the AUK46-NZVD2016 grid models the difference between the Auckland 1946 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 18 Jul 2016<br />
Updated: 02 Aug 2016<br />
NZ Kaikoura Earthquake (14 Nov 2016) Geodetic Markstag:data.linz.govt.nz,2016-12:layers:535272016-12-08T00:34:06.973002+00:002017-01-24T20:29:28.931658+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53527-nz-kaikoura-earthquake-14-nov-2016-geodetic-marks/" title="Details for NZ Kaikoura Earthquake (14 Nov 2016) Geodetic Marks"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53527.162081,style=auto/90x70.png" alt="NZ Kaikoura Earthquake (14 Nov 2016) Geodetic Marks thumbnail"/></a><br />
<br /><strong>Updated with new data on 24 Jan 2017</strong><br />
<p><strong>For further information about this dataset, see <a href="http://www.linz.govt.nz/land/surveying/canterbury-earthquakes/geodetic-survey-control-network/kaikoura-earthquake-%E2%80%93-14-november-2016">the Kaikoura earthquake information</a>.</strong> </p>
<p>It is likely that many of these coordinates will be updated multiple times as marks move due to aftershocks and ongoing post-seismic deformation. It is therefore critical that the <strong>datum version</strong> and <strong>coordinate epoch</strong> date are recorded with any coordinates sourced from this dataset, along with the date the coordinates were accessed or downloaded. </p>
<p>These coordinates are computed from Continuously Operating Reference Station (CORS) data and geodetic surveys undertaken after the 14 November 2016 Kaikoura earthquake. They reflect earthquake movements up until the epoch date that is associated with each coordinate. Where possible, coordinates sourced from this dataset for use as control or calibration points in a project should be at the same or similar epochs. If not, post-seismic deformation may mean that new observations or coordinates do not fit well with these coordinates. Coordinates used as control or calibration points should also be well-distributed over the project area, so that any discrepancies resulting from the survey date being significantly different from the coordinate epoch date can be identified. If such discrepancies are identified, it may be necessary to use the <a href="http://www.linz.govt.nz/positionzpp">LINZ PositioNZ-PP online processing service</a> to generate control coordinates at the same (or nearly the same) epoch as the survey date. </p>
<p>Coordinates were calculated using SNAP v2.5.48. The origin of non-CORS coordinates is PositioNZ CORS that have been updated to include earthquake movements. </p>
<p>The 95% confidence interval uncertainties of coordinates are 0.02m horizontally and 0.03m vertically, relative to the PositioNZ network, at the epoch specified. In areas experiencing significant ongoing seismic activity, coordinates at the same mark at other epochs may differ by more than these uncertainties. </p>
<p>These coordinates are suitable for use in surveys and other geospatial positioning activities in the area impacted by the Kaikoura earthquake.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 08 Dec 2016<br />
Updated: 24 Jan 2017<br />
NZ Quasigeoid 2016tag:data.linz.govt.nz,2016-07:layers:534182016-07-19T07:23:19.382376+00:002016-07-21T02:04:46.896889+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53418-nz-quasigeoid-2016/" title="Details for NZ Quasigeoid 2016"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53418.156228,style=auto/90x70.png" alt="NZ Quasigeoid 2016 thumbnail"/></a><br />
<br /><strong>Updated with new data on 21 Jul 2016</strong><br />
<p>The relationship between the GRS80 ellipsoid and the New Zealand Vertical Datum 2016 (NZVD2016) is modelled by the New Zealand Quasigeoid 2016 (NZGeoid2016). The relationship value is represented by the attribute “N”, in metres. </p>
<p>This relationship and NZVD2016 is formally defined in the LINZ standard <a href="http://www.linz.govt.nz/regulatory/25009">LINZS25009</a>. </p>
<p>NZGeoid2016 can be used to convert New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights to NZVD2016 normal-orthometric heights. </p>
<p>The conversion value is represented by the attribute “N”, in metres. </p>
<p>NZGeoid2016 is published on a one arc-minute grid (approximately 1.8 kilometres) over the New Zealand continental shelf (160° E to 170° W, 25° S to 60° S). </p>
<p>NZGeoid2016 was calculated by enhancing the EIGEN-6C4 global gravity model with, terrestrial, ship-track, satellite and airborne gravity data. GPS-levelling observations were not used to compute NZGeoid2016. </p>
<p><strong>Users may also be interested in transforming heights to any of the 13 historic local vertical datums used in New Zealand using the appropriate datum relationship grid displayed in the <a href="http://data.linz.govt.nz/layer/3419">NZ Height Conversion Index</a>.</strong> </p>
<p>More information on these transformations is available <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 19 Jul 2016<br />
Updated: 21 Jul 2016<br />
Canterbury Earthquake Precise-Levelling Heights (2010, 2011)tag:data.linz.govt.nz,2013-06:layers:516882013-06-25T03:23:52.306816+00:002014-09-04T02:58:29.474036+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/51688-canterbury-earthquake-precise-levelling-heights-2010-2011/" title="Details for Canterbury Earthquake Precise-Levelling Heights (2010, 2011)"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=51688.137912,style=auto/90x70.png" alt="Canterbury Earthquake Precise-Levelling Heights (2010, 2011) thumbnail"/></a><br />
<br /><strong>Updated with new data on 04 Sep 2014</strong><br />
<p>The Canterbury region of New Zealand experienced a sequence of significant earthquakes during 2010 and 2011. These earthquakes occurred on 2010-09-04, 2011-02-22, 2011-06-13 and 2011-12-23. Precise-levelling surveys have been carried out throughout Canterbury and Christchurch to re-establish heights after these earthquakes. </p>
<p><strong>Users may also be interested in the horizontal coordinates derived from GNSS data in the companion layers <a href="http://data.linz.govt.nz/layer/1588">Canterbury Earthquake Geodetic Marks (2010, 2011) - Comprehensive</a> and <a href="http://data.linz.govt.nz/layer/1589">Canterbury Earthquake Geodetic Marks (2010, 2011) - Simple</a></strong> </p>
<p>Horizontal Accuracy (standard deviation) approx 1m.<br>
Vertical Accuracy of Lyttelton Vertical Datum 1937 heights (standard deviation) 0.005m. </p>
<p>Heights generated from precise levelling data undertaken to a misclose standard (mm) of 5*sqrt(k) where k is the distance in kilometres. Precise levelling in the Christchurch area was undertaken after the 23 December 2011 earthquake. Other areas were levelled after the most recent earthquake to have affected heights in that area. Heights therefore represent the position of marks accounting for all four substantial Canterbury earthquakes. </p>
<p>These heights are only provisional. Analysis is ongoing as further data is collected.<br>
Heights calculated using SNAP v2.3.64.<br>
Heights were constrained using the pre-earthquake heights at geodetic codes AC9B, AFAQ, AG32 and B853. GNSS observations and modelling indicates that the height change of these marks was negligible.<br>
Some heights were calculated from precise levelling data provided by Christchurch City Council. </p>
<p>These coordinates are suitable for use in surveys and other geospatial activities in Canterbury and Christchurch. </p>
<p><strong>For further information about this dataset, see <a href="http://www.linz.govt.nz/survey-titles/canterbury-earthquake/canterbury-earthquake/geodetic-survey-control-coordinates">the Canterbury earthquake information</a> on the LINZ website.</strong></p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jun 2013<br />
Updated: 04 Sep 2014<br />
Gisborne 1926 to NZVD2016 Conversiontag:data.linz.govt.nz,2016-07:layers:534302016-07-25T20:44:58.191394+00:002016-08-03T19:41:45.108418+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53430-gisborne-1926-to-nzvd2016-conversion/" title="Details for Gisborne 1926 to NZVD2016 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53430.156588,style=auto/90x70.png" alt="Gisborne 1926 to NZVD2016 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 03 Aug 2016</strong><br />
<p>The GSB26-NZVD2016 grid enables the conversion of normal-orthometric heights from the Gisborne 1926 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016).</p>
<p>The conversion value is represented by the attribute “O”, in metres.</p>
<p>This conversion and NZVD2016 are formally defined in the LINZ standard <a href="http://www.linz.govt.nz/regulatory/25009">LINZS25009</a>.</p>
<p>GSB26-NZVD2016 is published on a two arc-minute grid (approximately 3.6 kilometres) extending over the benchmarks that nominally define the extent of the Gisborne 1926 vertical datum (177.0° E to 178.6° E, 37.4° S to 39.0° S).</p>
<p>The height conversion grid models the difference between the Gisborne 1926 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. From the GPS-levelling marks the expected accuracy of GSB26-NZVD2016 is better than 2 centimetres (95% Confidence interval).</p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 03 Aug 2016<br />
Wellington 1953 to NZVD2016 Conversiontag:data.linz.govt.nz,2016-07:layers:534462016-07-25T21:08:55.708472+00:002016-08-03T19:31:36.252115+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53446-wellington-1953-to-nzvd2016-conversion/" title="Details for Wellington 1953 to NZVD2016 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53446.156577,style=auto/90x70.png" alt="Wellington 1953 to NZVD2016 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 03 Aug 2016</strong><br />
<p>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). </p>
<p>The conversion value is represented by the attribute “O”, in metres. </p>
<p>This conversion and NZVD2016 are formally defined in the LINZ standard <a href="http://www.linz.govt.nz/regulatory/25009">LINZS25009</a>. </p>
<p>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). </p>
<p>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). </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 03 Aug 2016<br />
Lyttelton 1937 to NZVD2016 Conversiontag:data.linz.govt.nz,2016-07:layers:534322016-07-25T20:47:10.702441+00:002016-08-03T19:42:30.979705+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53432-lyttelton-1937-to-nzvd2016-conversion/" title="Details for Lyttelton 1937 to NZVD2016 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53432.156589,style=auto/90x70.png" alt="Lyttelton 1937 to NZVD2016 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 03 Aug 2016</strong><br />
<p>The LTN37-NZVD2016 grid enables the conversion of normal-orthometric heights from the Lyttelton 1937 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). </p>
<p>The conversion value is represented by the attribute “O”, in metres. </p>
<p>This conversion and NZVD2016 are formally defined in the LINZ standard <a href="http://www.linz.govt.nz/regulatory/25009">LINZS25009</a>. </p>
<p>LTN37-NZVD2016 is published on a two arc-minute grid (approximately 3.6 kilometres) extending over the benchmarks that nominally define the extent of the Lyttelton 1937 vertical datum (168.53° E to 174.2° E, 41.3° S to 45.1° S). </p>
<p>The height conversion grid models the difference between the Lyttelton 1937 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. From the GPS-levelling marks the expected accuracy of LTN37-NZVD2016 is better than 2 centimetres (95% Confidence interval). </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 03 Aug 2016<br />
One Tree Point 1964 to NZVD2016 Conversiontag:data.linz.govt.nz,2016-07:layers:534402016-07-25T21:01:42.354521+00:002016-08-03T19:33:33.560725+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53440-one-tree-point-1964-to-nzvd2016-conversion/" title="Details for One Tree Point 1964 to NZVD2016 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53440.156580,style=auto/90x70.png" alt="One Tree Point 1964 to NZVD2016 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 03 Aug 2016</strong><br />
<p>The OTP64-NZVD2016 grid enables the conversion of normal-orthometric heights from the One Tree Point 1964 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). </p>
<p>The conversion value is represented by the attribute “O”, in metres. </p>
<p>This conversion and NZVD2016 are formally defined in the LINZ standard <a href="http://www.linz.govt.nz/regulatory/25009">LINZS25009</a>. </p>
<p>OTP64-NZVD2016 is published on a two arc-minute grid (approximately 3.6 kilometres) extending over the benchmarks that nominally define the extent of the One Tree Point 1964 vertical datum (171.3° E to 174.4° E, 40.4° S to 42.7° S). </p>
<p>The height conversion grid models the difference between the One Tree Point 1964 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. From the GPS-levelling marks the expected accuracy of OTP64-NZVD2016 is better than 1 centimetre (95% Confidence interval). </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 03 Aug 2016<br />
Dunedin 1958 to NZVD2016 Conversiontag:data.linz.govt.nz,2016-07:layers:534282016-07-25T20:29:52.604388+00:002016-08-03T19:41:10.657983+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53428-dunedin-1958-to-nzvd2016-conversion/" title="Details for Dunedin 1958 to NZVD2016 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53428.156587,style=auto/90x70.png" alt="Dunedin 1958 to NZVD2016 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 03 Aug 2016</strong><br />
<p>The DUN58-NZVD2016 grid enables the conversion of normal-orthometric heights from the Dunedin 1958 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). </p>
<p>The conversion value is represented by the attribute “O”, in metres. </p>
<p>This conversion and NZVD2016 are formally defined in the LINZ standard <a href="http://www.linz.govt.nz/regulatory/25009">LINZS25009</a>. </p>
<p>DUN58-NZVD2016 is published on a two arc-minute grid (approximately 3.6 kilometres) extending over the benchmarks that nominally define the extent of the Dunedin 1958 vertical datum (168.4° E to 171.3° E, 43.9° S to 46.5° S). </p>
<p>The height conversion grid models the difference between the Dunedin 1958 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. From the GPS-levelling marks the expected accuracy of DUN58-NZVD2016 is better than 2 centimetres (95% Confidence interval). </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 03 Aug 2016<br />
Auckland 1946 to NZVD2016 Conversiontag:data.linz.govt.nz,2016-07:layers:534172016-07-19T06:21:23.513544+00:002016-08-03T19:36:18.835154+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53417-auckland-1946-to-nzvd2016-conversion/" title="Details for Auckland 1946 to NZVD2016 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53417.156581,style=auto/90x70.png" alt="Auckland 1946 to NZVD2016 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 03 Aug 2016</strong><br />
<p>The AUK46-NZVD2016 grid enables the conversion of normal-orthometric heights from the Auckland 1946 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). </p>
<p>The conversion value is represented by the attribute “O”, in metres. </p>
<p>This conversion and NZVD2016 are formally defined in the LINZ standard <a href="http://www.linz.govt.nz/regulatory/25009">LINZS25009</a>. </p>
<p>AUK46-NZVD2016 is published on a two arc-minute grid (approximately 3.6 kilometres) extending over the benchmarks that nominally define the extent of the Auckland 1946 vertical datum (174.0° E to 176.2° E, 36.1° S to 38.0° S). </p>
<p>The height conversion grid models the difference between the Auckland 1946 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. From the GPS-levelling marks the expected accuracy of AUK46-NZVD2016 is better than 2 centimetres (95% Confidence interval). </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 19 Jul 2016<br />
Updated: 03 Aug 2016<br />
Canterbury Earthquake Geodetic Marks (2010, 2011) - Simpletag:data.linz.govt.nz,2013-04:layers:515892013-04-26T02:54:33.893030+00:002013-04-26T02:53:07.136656+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/51589-canterbury-earthquake-geodetic-marks-2010-2011-simple/" title="Details for Canterbury Earthquake Geodetic Marks (2010, 2011) - Simple"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=51589.131836,style=auto/90x70.png" alt="Canterbury Earthquake Geodetic Marks (2010, 2011) - Simple thumbnail"/></a><br />
<br /><strong>Updated with new data on 26 Apr 2013</strong><br />
<p>The Canterbury region of New Zealand experienced a sequence of significant earthquakes during 2010 and 2011. These earthquakes occurred on 2010-09-04, 2011-02-22, 2011-06-13 and 2011-12-23. The coordinates in this layer account for all significant movements relating to these, so should be consistent with any observations made after the last earthquake to affect a given area (neglecting localised deformation such as that due to liquefaction).</p>
<p><strong>Users may also be interested in the more comprehensive data in the companion layer <a href="http://data.linz.govt.nz/layer/1588">Canterbury Earthquake Geodetic Marks (2010, 2011) - Comprehensive</a>.</strong></p>
<p>These coordinates are only provisional. Analysis is ongoing as further data is collected. Coordinates were calculated using SNAP v2.3.61. Stations were constrained using coordinates calculated by GNS Science. Some coordinates were calculated from data provided by Christchurch City Council. No precise levelling data has been used.</p>
<p>The estimated accuracy is 0.02m horizontally and 0.03m vertically. </p>
<p>The deformation model igns2011_working.grd calculated from a model (v4) provided by GNS Science on 28 April 2011 was used to remove secular deformation.</p>
<p>These coordinates are suitable for use in surveys and other geospatial activities in Canterbury and Christchurch.</p>
<p><strong>For further information about this dataset, see <a href="http://www.linz.govt.nz/survey-titles/canterbury-earthquake/canterbury-earthquake/geodetic-survey-control-coordinates">the Canterbury earthquake information</a> on the LINZ website.</strong></p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 26 Apr 2013<br />
Updated: 26 Apr 2013<br />
Wellington 1953 to NZGD2000 Conversiontag:data.linz.govt.nz,2016-07:layers:534452016-07-25T21:07:42.057545+00:002016-08-02T21:41:56.277935+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53445-wellington-1953-to-nzgd2000-conversion/" title="Details for Wellington 1953 to NZGD2000 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53445.156574,style=auto/90x70.png" alt="Wellington 1953 to NZGD2000 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 02 Aug 2016</strong><br />
<p>The WGN53-NZGD2000 grid enables the conversion of normal-orthometric heights from the Wellington 1953local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights. </p>
<p>WGN53-NZGD2000 is published on a one arc-minute grid (approximately 1.8 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). </p>
<p>The conversion value is represented by the attribute “delta”, in metres. </p>
<p>This grid is a combination of New Zealand Quasigeoid 2016 <a href="https://data.linz.govt.nz/layer/3418">NZGeoid2016</a> and the <a href="https://data.linz.govt.nz/layer/3446">WGN53-NZVD2016</a> height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the WGN53-NZVD2016 grid models the difference between the Wellington 1953 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 02 Aug 2016<br />
Moturiki 1953 to NZGD2000 Conversiontag:data.linz.govt.nz,2016-07:layers:534332016-07-25T20:49:51.344251+00:002016-08-02T21:25:44.909185+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53433-moturiki-1953-to-nzgd2000-conversion/" title="Details for Moturiki 1953 to NZGD2000 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53433.156562,style=auto/90x70.png" alt="Moturiki 1953 to NZGD2000 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 02 Aug 2016</strong><br />
<p>The MOT53-NZGD2000 grid enables the conversion of normal-orthometric heights from the Moturiki 1953 local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights. </p>
<p>MOT53-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the Moturiki 1953 vertical datum (174.5° E to 178.26° E, 36.5° S to 40.7° S). </p>
<p>The conversion value is represented by the attribute “delta”, in metres. </p>
<p>This grid is a combination of New Zealand Quasigeoid 2016 <a href="https://data.linz.govt.nz/layer/3418">NZGeoid2016</a> and the <a href="https://data.linz.govt.nz/layer/3434">MOT53-NZVD2016</a> height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the MOT53-NZVD2016 grid models the difference between the Moturiki 1953 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 02 Aug 2016<br />
Canterbury Earthquake (14 Feb 2016) Geodetic Markstag:data.linz.govt.nz,2016-02:layers:533222016-02-25T20:38:26.140206+00:002016-06-20T19:37:21.567732+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53322-canterbury-earthquake-14-feb-2016-geodetic-marks/" title="Details for Canterbury Earthquake (14 Feb 2016) Geodetic Marks"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53322.155374,style=auto/90x70.png" alt="Canterbury Earthquake (14 Feb 2016) Geodetic Marks thumbnail"/></a><br />
<br /><strong>Updated with new data on 20 Jun 2016</strong><br />
<p>Coordinates computed from surveys undertaken after the 14 February 2016 Canterbury earthquake. These should be consistent with any observations made after this earthquake (neglecting any localised deformation such as that due to liquefaction). </p>
<p><strong>For further information about this dataset, see <a href="http://www.linz.govt.nz/land/surveying/canterbury-earthquakes/geodetic-survey-control-network">the Canterbury earthquake information</a>.</strong> </p>
<p>These coordinates are only provisional. Analysis is ongoing as further data is collected. Coordinates were calculated using SNAP v2.5.33. Stations were constrained using coordinates of distant PositioNZ continuous GNSS stations that were unaffected by the earthquake. </p>
<p>The standard deviations of coordinates are 0.01m horizontally and 0.02m vertically, relative to the PositioNZ network. </p>
<p>Coordinate changes due to the earthquake have been calculated by comparing pre and post-earthquake coordinates. Pre-earthquake coordinates were calculated relative to public and private continuous GNSS stations. These continuous GNSS stations had data processed for several days early in 2016 (before the earthquake). Other pre-earthquake geodetic data was then readjusted with the continuous GNSS data. Note that this means these coordinate changes may differ slightly from those that would be calculated by comparing the post-earthquake coordinates with those currently in the Geodetic Database. </p>
<p>These coordinates are suitable for use in surveys and other geospatial activities in Canterbury and Christchurch.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Feb 2016<br />
Updated: 20 Jun 2016<br />
Nelson 1955 to NZVD2016 Conversiontag:data.linz.govt.nz,2016-07:layers:534382016-07-25T20:57:38.842888+00:002016-08-03T19:37:39.649271+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53438-nelson-1955-to-nzvd2016-conversion/" title="Details for Nelson 1955 to NZVD2016 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53438.156582,style=auto/90x70.png" alt="Nelson 1955 to NZVD2016 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 03 Aug 2016</strong><br />
<p>The NSN55-NZVD2016 grid enables the conversion of normal-orthometric heights from the Nelson 1955 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). </p>
<p>The conversion value is represented by the attribute “O”, in metres. </p>
<p>This conversion and NZVD2016 are formally defined in the LINZ standard <a href="http://www.linz.govt.nz/regulatory/25009">LINZS25009</a>. </p>
<p>NSN55-NZVD2016 is published on a two arc-minute grid (approximately 3.6 kilometres) extending over the benchmarks that nominally define the extent of the Nelson 1955 vertical datum (171.3° E to 174.4° E, 40.4° S to 42.7° S). </p>
<p>The height conversion grid models the difference between the Nelson 1955 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. From the GPS-levelling marks the expected accuracy of NSN55-NZVD2016 is better than 2 centimetres (95% Confidence interval). </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 03 Aug 2016<br />
Bluff 1955 to NZVD2016 Conversiontag:data.linz.govt.nz,2016-07:layers:534242016-07-25T20:25:53.036489+00:002016-08-03T19:39:13.106429+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53424-bluff-1955-to-nzvd2016-conversion/" title="Details for Bluff 1955 to NZVD2016 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53424.156584,style=auto/90x70.png" alt="Bluff 1955 to NZVD2016 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 03 Aug 2016</strong><br />
<p>The BLF55-NZVD2016 grid enables the conversion of normal-orthometric heights from the Bluff 1955 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). </p>
<p>The conversion value is represented by the attribute “O”, in metres. </p>
<p>This conversion and NZVD2016 are formally defined in the LINZ standard <a href="http://www.linz.govt.nz/regulatory/25009">LINZS25009</a>. </p>
<p>BLF55-NZVD2016 is published on a two arc-minute grid (approximately 3.6 kilometres) extending over the benchmarks that nominally define the extent of the Bluff 1955 vertical datum (168.2° E to 168.9° E, 46.3° S to 46.8° S). </p>
<p>The height conversion grid models the difference between the Bluff 1955 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. From the GPS-levelling marks the expected accuracy of BLF55-NZVD2016 is better than 3 centimetres (95% Confidence interval). </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 03 Aug 2016<br />
Taranaki 1970 to NZGD2000 Conversiontag:data.linz.govt.nz,2016-07:layers:534432016-07-25T21:05:36.238376+00:002016-08-02T21:40:42.277514+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53443-taranaki-1970-to-nzgd2000-conversion/" title="Details for Taranaki 1970 to NZGD2000 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53443.156572,style=auto/90x70.png" alt="Taranaki 1970 to NZGD2000 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 02 Aug 2016</strong><br />
<p>The TNK70-NZGD2000 grid enables the conversion of normal-orthometric heights from the Taranaki 1970 local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights. </p>
<p>TNK70-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the Taranaki 1970 vertical datum (173.6° E to 176.4° E, 38.3° S to 41.1° S).<br>
The conversion value is represented by the attribute “delta”, in metres. </p>
<p>This grid is a combination of New Zealand Quasigeoid 2016 <a href="https://data.linz.govt.nz/layer/3418">NZGeoid2016</a> and the <a href="https://data.linz.govt.nz/layer/3444">TNK70-NZVD2016</a> height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the TNK70-NZVD2016 grid models the difference between the Taranaki 1970 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 02 Aug 2016<br />
Napier 1962 to NZGD2000 Conversiontag:data.linz.govt.nz,2016-07:layers:534352016-07-25T20:54:23.379963+00:002016-08-02T21:35:21.412131+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53435-napier-1962-to-nzgd2000-conversion/" title="Details for Napier 1962 to NZGD2000 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53435.156564,style=auto/90x70.png" alt="Napier 1962 to NZGD2000 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 02 Aug 2016</strong><br />
<p>The NPR62-NZGD2000 grid enables the conversion of normal-orthometric heights from the Napier 162 ocal vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights. </p>
<p>NPR62-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the Napier 1962 vertical datum (175.6° E to 177.9° E, 38.6° S to 40.6° S). </p>
<p>The conversion value is represented by the attribute “delta”, in metres. </p>
<p>This grid is a combination of New Zealand Quasigeoid 2016 <a href="https://data.linz.govt.nz/layer/3418">NZGeoid2016</a> and the <a href="https://data.linz.govt.nz/layer/3436">NPR62-NZVD2016</a> height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the NPR62-NZVD2016 grid models the difference between the Napier 1962 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 02 Aug 2016<br />
NZ Height Conversion Indextag:data.linz.govt.nz,2016-07:layers:534192016-07-20T21:43:17.371649+00:002016-08-02T21:46:05.283970+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53419-nz-height-conversion-index/" title="Details for NZ Height Conversion Index"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53419.156576,style=auto/90x70.png" alt="NZ Height Conversion Index thumbnail"/></a><br />
<br /><strong>Updated with new data on 02 Aug 2016</strong><br />
<p>This index enables users to identify the extent of the relationship grids provided on LDS, which are used to convert heights provided in terms of one of 13 historic local vertical datums to NZVD2016. </p>
<p>The polygons comprising the index show the extent of the conversion grids. </p>
<p>Users can view the following polygon attributes:<br>
Shape_VDR: Vertical Datum Relationship grid area<br>
LVD: Local Vertical Datum<br>
Control: Number of control marks used to compute the relationship grid<br>
Mean: Mean vertical datum relationship value at control points<br>
Std: Standard deviation of vertical datum relationship value at control points<br>
Min: Minimum vertical datum relationship value at control points<br>
Max: Maximum vertical datum relationship value at control points<br>
Range: Range of vertical datum relationship value at control points<br>
Ref: Reference control mark for the local vertical datum<br>
Ref_value: Vertical datum relationship value at the reference mark<br>
Grid: Formal grid id </p>
<p><strong>Users should note that the values represented in this dataset have been calculated with the outliers excluded. These same outliers were excluded during the computation of the relationship grids, but were included when calculating the 95% confidence intervals</strong><br>
More information on converting heights between vertical datums can be found on the <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 20 Jul 2016<br />
Updated: 02 Aug 2016<br />
Dunedin-Bluff 1960 to NZGD2000 Conversiontag:data.linz.govt.nz,2016-07:layers:534252016-07-25T20:26:56.893253+00:002016-08-02T21:21:02.848769+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53425-dunedin-bluff-1960-to-nzgd2000-conversion/" title="Details for Dunedin-Bluff 1960 to NZGD2000 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53425.156554,style=auto/90x70.png" alt="Dunedin-Bluff 1960 to NZGD2000 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 02 Aug 2016</strong><br />
<p>The DBL60-NZGD2000 grid enables the conversion of normal-orthometric heights from the Dunedin-Bluff 1960 local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights. </p>
<p>DBL60-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the Dunedin-Bluff 1960 vertical datum (167.4° E to 169.9° E, 45.0° S to 46.7° S). </p>
<p>The conversion value is represented by the attribute “delta”, in metres. </p>
<p>This grid is a combination of New Zealand Quasigeoid 2016 <a href="https://data.linz.govt.nz/layer/3418">NZGeoid2016</a> and the <a href="https://data.linz.govt.nz/layer/3426">DBL60-NZVD2016</a> height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the DBL60-NZVD2016 grid models the difference between the Dunedin-Bluff 1960 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 02 Aug 2016<br />
NZGD2000 deformation model version 2013-08-01 reverse patch coordinate shifts contourstag:data.linz.govt.nz,2013-06:layers:516842013-06-07T03:06:01.158804+00:002013-06-14T01:34:13.649873+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/51684-nzgd2000-deformation-model-version-2013-08-01-reverse-patch-coordinate-shifts-contours/" title="Details for NZGD2000 deformation model version 2013-08-01 reverse patch coordinate shifts contours"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=51684.132338,style=auto/90x70.png" alt="NZGD2000 deformation model version 2013-08-01 reverse patch coordinate shifts contours thumbnail"/></a><br />
<br /><strong>Updated with new data on 14 Jun 2013</strong><br />
<p>The deformation model associated with the NZGD2000 datum was updated, nominally at 1 August 2013. The actual update of LINZ data took place on 14-15 December 2013. This update involved reverse patches, which means that the "reference coordinates" of features were updated. The main updates relate to the Christchurch earthquakes. The patch also updated coordinates affected by other South Island earthquakes since 2000.</p>
<p>These updates have been incorporated into Landonline and resulted in spatial updates to all features in the affected areas.</p>
<p>This data set contains contours indicating the extent and magnitude of the coordinate changes to assist in assessing the impact of this update on client data sets. This dataset is also available as a <a href="http://data.linz.govt.nz/#/layer/1685-nzgd2000-deformation-model-version-2013-08-01-reverse-patch-coordinate-shifts-filled-contours/">multipolygon</a>.</p>
<p>For more information see <a href="http://www.landonline.govt.nz/landonline-system-updates/south-island-coordinate-update">here</a></p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 07 Jun 2013<br />
Updated: 14 Jun 2013<br />
Gisborne 1926 to NZGD2000 Conversiontag:data.linz.govt.nz,2016-07:layers:534292016-07-25T20:31:00.093075+00:002016-08-02T21:23:26.805423+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53429-gisborne-1926-to-nzgd2000-conversion/" title="Details for Gisborne 1926 to NZGD2000 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53429.156558,style=auto/90x70.png" alt="Gisborne 1926 to NZGD2000 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 02 Aug 2016</strong><br />
<p>The GSB26-NZGD2000 grid enables the conversion of normal-orthometric heights from the Gisborne 1926 local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights. </p>
<p>GSB26-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the Gisborne 1926 vertical datum (177.0° E to 178.6° E, 37.4° S to 39.0° S). </p>
<p>The conversion value is represented by the attribute “delta”, in metres. </p>
<p>This grid is a combination of New Zealand Quasigeoid 2016 <a href="https://data.linz.govt.nz/layer/3418">NZGeoid2016</a> and the <a href="https://data.linz.govt.nz/layer/3430">GSB26-NZVD2016</a> height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the GSB26-NZVD2016 grid models the difference between the Gisborne 1926 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 02 Aug 2016<br />
Nelson 1955 to NZGD2000 Conversiontag:data.linz.govt.nz,2016-07:layers:534372016-07-25T20:56:43.155385+00:002016-08-02T21:36:45.731044+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53437-nelson-1955-to-nzgd2000-conversion/" title="Details for Nelson 1955 to NZGD2000 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53437.156566,style=auto/90x70.png" alt="Nelson 1955 to NZGD2000 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 02 Aug 2016</strong><br />
<p>The NSN55-NZGD2000 grid enables the conversion of normal-orthometric heights from the Nelson 1955 local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights. </p>
<p>NSN55-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the Nelson 1955 vertical datum (171.3° E to 174.4° E, 40.4° S to 42.7° S). </p>
<p>The conversion value is represented by the attribute “delta”, in metres. </p>
<p>This grid is a combination of New Zealand Quasigeoid 2016 <a href="https://data.linz.govt.nz/layer/3418">NZGeoid2016</a> and the <a href="https://data.linz.govt.nz/layer/3438">NSN55-NZVD2016</a> height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the NSN55-NZVD2016 grid models the difference between the Nelson 1955 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 02 Aug 2016<br />
Dunedin-Bluff 1960 to NZVD2016 Conversiontag:data.linz.govt.nz,2016-07:layers:534262016-07-25T20:27:43.259049+00:002016-08-03T19:39:41.897503+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53426-dunedin-bluff-1960-to-nzvd2016-conversion/" title="Details for Dunedin-Bluff 1960 to NZVD2016 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53426.156585,style=auto/90x70.png" alt="Dunedin-Bluff 1960 to NZVD2016 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 03 Aug 2016</strong><br />
<p>The DBL60-NZVD2016 grid enables the conversion of normal-orthometric heights from the Dunedin-Bluff 1960 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). </p>
<p>The conversion value is represented by the attribute “O”, in metres. </p>
<p>This conversion and NZVD2016 are formally defined in the LINZ standard <a href="http://www.linz.govt.nz/regulatory/25009">LINZS25009</a>.<br>
DBL60-NZVD2016 is published on a two arc-minute grid (approximately 3.6 kilometres) extending over the benchmarks that nominally define the extent of the Dunedin-Bluff 1960 vertical datum (167.4° E to 169.9° E, 45.0° S to 46.7° S). </p>
<p>The height conversion grid models the difference between the Dunedin-Bluff 1960 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. From the GPS-levelling marks the expected accuracy of DBL60-NZVD2016 is better than 2 centimetres (95% Confidence interval). </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 03 Aug 2016<br />
Lyttelton 1937 to NZGD2000 Conversiontag:data.linz.govt.nz,2016-07:layers:534312016-07-25T20:46:36.998099+00:002016-08-02T21:24:37.679449+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53431-lyttelton-1937-to-nzgd2000-conversion/" title="Details for Lyttelton 1937 to NZGD2000 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53431.156560,style=auto/90x70.png" alt="Lyttelton 1937 to NZGD2000 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 02 Aug 2016</strong><br />
<p>The LTN37-NZGD2000 grid enables the conversion of normal-orthometric heights from the Lyttelton 1937 local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights. </p>
<p>LTN37-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the Lyttelton 1937 vertical datum (168.53° E to 174.2° E, 41.3° S to 45.1° S). </p>
<p>The conversion value is represented by the attribute “delta”, in metres. </p>
<p>This grid is a combination of New Zealand Quasigeoid 2016 <a href="https://data.linz.govt.nz/layer/3418">NZGeoid2016</a> and the <a href="https://data.linz.govt.nz/layer/3432">LTN37-NZVD2016</a> height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the LTN37-NZVD2016 grid models the difference between the Lyttelton 1937 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 02 Aug 2016<br />
Dunedin 1958 to NZGD2000 Conversiontag:data.linz.govt.nz,2016-07:layers:534272016-07-25T20:29:05.700384+00:002016-08-03T19:40:29.411841+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53427-dunedin-1958-to-nzgd2000-conversion/" title="Details for Dunedin 1958 to NZGD2000 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53427.156586,style=auto/90x70.png" alt="Dunedin 1958 to NZGD2000 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 03 Aug 2016</strong><br />
<p>The DUN58-NZGD2000 grid enables the conversion of normal-orthometric heights from the Dunedin 1958 local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights. </p>
<p>DUN58-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the Dunedin 1958 vertical datum (168.4° E to 171.3° E, 43.9° S to 46.5° S). </p>
<p>The conversion value is represented by the attribute “delta”, in metres. </p>
<p>This grid is a combination of New Zealand Quasigeoid 2016 <a href="https://data.linz.govt.nz/layer/3418">NZGeoid2016</a> and the <a href="https://data.linz.govt.nz/layer/3428">DUN58-NZVD2016</a> height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the DUN58-NZVD2016 grid models the difference between the Dunedin 1958 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 03 Aug 2016<br />
NZGD2000 deformation model version 2013-08-01 reverse patch coordinate shifts filled contourstag:data.linz.govt.nz,2013-06:layers:516852013-06-07T03:07:35.830372+00:002013-06-14T01:34:51.734578+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/51685-nzgd2000-deformation-model-version-2013-08-01-reverse-patch-coordinate-shifts-filled-contours/" title="Details for NZGD2000 deformation model version 2013-08-01 reverse patch coordinate shifts filled contours"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=51685.132339,style=auto/90x70.png" alt="NZGD2000 deformation model version 2013-08-01 reverse patch coordinate shifts filled contours thumbnail"/></a><br />
<br /><strong>Updated with new data on 14 Jun 2013</strong><br />
<p>The deformation model associated with the NZGD2000 datum was updated, nominally at 1 August 2013. The actual update of LINZ data took place on 14-15 December 2013. This update involved reverse patches, which means that the "reference coordinates" of features were updated. The main updates relate to the Christchurch earthquakes. The patch also updated coordinates affected by other South Island earthquakes since 2000.</p>
<p>These updates have been incorporated into Landonline and resulted in spatial updates to all features in the affected areas.</p>
<p>This data set contains contours indicating the extent and magnitude of the coordinate changes to assist in assessing the impact of this update on client data sets. This dataset is also available as a <a href="http://data.linz.govt.nz/layer/1684-nzgd2000-deformation-model-version-2013-08-01-reverse-patch-coordinate-shifts-contours/">polyline</a>.</p>
<p>For more information see <a href="http://www.landonline.govt.nz/landonline-system-updates/south-island-coordinate-update">here</a></p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 07 Jun 2013<br />
Updated: 14 Jun 2013<br />
Taranaki 1970 to NZVD2016 Conversiontag:data.linz.govt.nz,2016-07:layers:534442016-07-25T21:06:29.227363+00:002016-08-03T19:32:11.456538+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53444-taranaki-1970-to-nzvd2016-conversion/" title="Details for Taranaki 1970 to NZVD2016 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53444.156578,style=auto/90x70.png" alt="Taranaki 1970 to NZVD2016 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 03 Aug 2016</strong><br />
<p>The TNK70-NZVD2016 grid enables the conversion of normal-orthometric heights from the Taranaki 1970 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). </p>
<p>The conversion value is represented by the attribute “O”, in metres. </p>
<p>This conversion and NZVD2016 are formally defined in the LINZ standard <a href="http://www.linz.govt.nz/regulatory/25009">LINZS25009</a>. </p>
<p>TNK70-NZVD2016 is published on a two arc-minute grid (approximately 3.6 kilometres) extending over the benchmarks that nominally define the extent of the Taranaki 1970 vertical datum (173.6° E to 176.4° E, 38.3° S to 41.1° S). </p>
<p>The height conversion grid models the difference between the Taranaki 1970 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. From the GPS-levelling marks the expected accuracy of TNK70-NZVD2016 is better than 2 centimetres (95% Confidence interval). </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 03 Aug 2016<br />
Napier 1962 to NZVD2016 Conversiontag:data.linz.govt.nz,2016-07:layers:534362016-07-25T20:55:57.647810+00:002016-08-03T19:38:44.245876+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53436-napier-1962-to-nzvd2016-conversion/" title="Details for Napier 1962 to NZVD2016 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53436.156583,style=auto/90x70.png" alt="Napier 1962 to NZVD2016 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 03 Aug 2016</strong><br />
<p>The NPR62-NZVD2016 grid enables the conversion of normal-orthometric heights from the Napier 1962 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). </p>
<p>The conversion value is represented by the attribute “O”, in metres. </p>
<p>This conversion and NZVD2016 are formally defined in the LINZ standard <a href="http://www.linz.govt.nz/regulatory/25009">LINZS25009</a>. </p>
<p>NPR62-NZVD2016 is published on a two arc-minute grid (approximately 3.6 kilometres) extending over the benchmarks that nominally define the extent of the Napier 1962 vertical datum (175.6° E to 177.9° E, 38.6° S to 40.6° S). </p>
<p>The height conversion grid models the difference between the Napier 1962 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. From the GPS-levelling marks the expected accuracy of NPR62-NZVD2016 is better than 2 centimetres (95% Confidence interval). </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 03 Aug 2016<br />
One Tree Point 1964 to NZGD2000 Conversiontag:data.linz.govt.nz,2016-07:layers:534392016-07-25T21:00:19.054283+00:002016-08-02T21:38:04.076329+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53439-one-tree-point-1964-to-nzgd2000-conversion/" title="Details for One Tree Point 1964 to NZGD2000 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53439.156568,style=auto/90x70.png" alt="One Tree Point 1964 to NZGD2000 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 02 Aug 2016</strong><br />
<p>The OTP64-NZGD2000 grid enables the conversion of normal-orthometric heights from the One Tree Point 1964 local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights. </p>
<p>OTP64-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the One Tree Point 1964 vertical datum (172.6° E to 175.0° E, 34.3° S to 36.8° S).<br>
The conversion value is represented by the attribute “delta”, in metres. </p>
<p>This grid is a combination of New Zealand Quasigeoid 2016 <a href="https://data.linz.govt.nz/layer/3418">NZGeoid2016</a> and the <a href="https://data.linz.govt.nz/layer/3440">OTP64-NZVD2016</a> height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the OTP64-NZVD2016 grid models the difference between the One Tree Point 1964 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 02 Aug 2016<br />
Stewart Island 1977 to NZGD2000 Conversiontag:data.linz.govt.nz,2016-07:layers:534412016-07-25T21:02:49.009621+00:002016-08-02T21:39:36.397865+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53441-stewart-island-1977-to-nzgd2000-conversion/" title="Details for Stewart Island 1977 to NZGD2000 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53441.156570,style=auto/90x70.png" alt="Stewart Island 1977 to NZGD2000 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 02 Aug 2016</strong><br />
<p>The STI77-NZGD2000 grid enables the conversion of normal-orthometric heights from the Stewart Island 1977 local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights. </p>
<p>STI77-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the Stewart Island 1977 vertical datum (167.2° E to 168.8° E, 46.5° S to 47.5° S).<br>
The conversion value is represented by the attribute “delta”, in metres. </p>
<p>This grid is a combination of New Zealand Quasigeoid 2016 <a href="https://data.linz.govt.nz/layer/3418">NZGeoid2016</a> and the <a href="https://data.linz.govt.nz/layer/3442">STI77-NZVD2016</a> height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the STI77-NZVD2016 grid models the difference between the Stewart Island 1977 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 02 Aug 2016<br />
Bluff 1955 to NZGD2000 Conversiontag:data.linz.govt.nz,2016-07:layers:534232016-07-25T20:23:01.388637+00:002016-08-02T21:19:43.869588+00:00
<a class="kxThumbnail" href="https://data.linz.govt.nz/layer/53423-bluff-1955-to-nzgd2000-conversion/" title="Details for Bluff 1955 to NZGD2000 Conversion"><img src="//tiles-cdn.koordinates.com/services/tiles/v4/thumbnail/layer=53423.156552,style=auto/90x70.png" alt="Bluff 1955 to NZGD2000 Conversion thumbnail"/></a><br />
<br /><strong>Updated with new data on 02 Aug 2016</strong><br />
<p>The BLF55-NZGD2000 grid enables the conversion of normal-orthometric heights from the Bluff 1955 local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights. </p>
<p>BLF55-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the Bluff 1955 vertical datum (168.2° E to 168.9° E, 46.3° S to 46.8° S). </p>
<p>The conversion value is represented by the attribute “delta”, in metres. </p>
<p>This grid is a combination of New Zealand Quasigeoid 2016 <a href="https://data.linz.govt.nz/layer/3418">NZGeoid2016</a> and the <a href="https://data.linz.govt.nz/layer/3424">BLF55-NZVD2016</a> height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the BLF55-NZVD2016 grid models the difference between the Bluff 1955 vertical datum and NZVD2016 using the LINZ GPS-levelling marks. </p>
<p>More information on converting heights between vertical datums can be found <a href="http://www.linz.govt.nz/data/geodetic-services/coordinate-conversion/converting-between-nzvd2016-nzgd2000-and-local-vertical-datums">on the LINZ website</a>.</p>
From: <a href="https://data.linz.govt.nz/group/ngo/" title="Profile for National Geodetic Office">National Geodetic Office</a><br />
Added: 25 Jul 2016<br />
Updated: 02 Aug 2016<br />