NZ Orthophotos 2004-2005

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

28470
487
Added
14 Sep 2011

This dataset was first added to LINZ Data Service on 14 Sep 2011.

LINZ publishes 1:25,000 scale orthophotos of New Zealand from its archive. The New Zealand orthophotos shown are historical and no further orthophotos of New Zealand will be published.

Coverage of 1 pixel is 2.5m x 2.5m

Layer ID 51013
Data type Image/Raster
Resolution 2.500m
Services Raster Tiles Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Reef Polygons (Topo, 1:50k)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

27752
1102
Updated
23 Sep 2022

This dataset was last updated on LINZ Data Service on 23 Sep 2022.

A ridge, usually of rocks or coral, lying near the surface of the sea, which may be visible at low tide, but is usually covered with water

Data Dictionary for reef_poly: docs.topo.linz.govt.nz/data-dictionary/tdd-class-r...

This layer is a component of the Topo50 map series. The Topo50 map series provides topographic mapping for the New Zealand mainland, Chatham and New Zealand's offshore islands, at 1:50,000 scale.

Further information on Topo50:
www.linz.govt.nz/topography/topo-maps/topo50

Layer ID 50323
Data type Vector polygon
Feature count 16
Primary key t50_fid
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Siphon Polygons (Topo, 1:50k)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

27837
658
Updated
23 Sep 2022

This dataset was last updated on LINZ Data Service on 23 Sep 2022.

A pipe system comprising a rising leg and a falling leg, typically in the shape of an inverted U. Works on atmospheric pressure

Data Dictionary for siphon_poly: docs.topo.linz.govt.nz/data-dictionary/tdd-class-s...

This layer is a component of the Topo50 map series. The Topo50 map series provides topographic mapping for the New Zealand mainland, Chatham and New Zealand's offshore islands, at 1:50,000 scale.

Further information on Topo50:
www.linz.govt.nz/topography/topo-maps/topo50

Layer ID 50347
Data type Vector polygon
Feature count 8
Primary key t50_fid
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Waimakariri 0.075m Urban Aerial Photos Index Tiles (2013-2014)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

28409
60
Updated
16 Feb 2015

This dataset was last updated on LINZ Data Service on 16 Feb 2015.

Index Tiles ONLY, for actual orthophotos see layer Waimakariri 0.075m Urban Aerial Photos (2013-14)

Orthophotography for the Waimakariri District Council taken during the summer of 2013-14. Coverage encompassed the urban areas of Rangiora and Oxford.

Imagery was captured for the ‘Waimakariri District Council’ by Aerial Surveys Ltd, Unit A1, 8 Saturn Place, Albany,0632, New Zealand.

Data comprises:
•1,834 x ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:500 tile layout
•Tile layout in NZTM projection containing relevant information.

The supplied imagery is in terms of New Zealand Transverse Mercator (NZTM) map projection. The products are tiled into NZTopo50 1:500 tiles. Please refer to the supplied tile layout shape file for specific details, naming conventions, etc.
Imagery supplied as 7.5cm pixel resolution (0.075m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is between +/-0.15m and +/-0.3m (Tile layout contains relevant information).

Layer ID 52114
Data type Vector polygon
Feature count 1834
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Christchurch Post-EQ Survey-Accurate (SDC) Non-Boundary Coordinates

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

27774
686
Added
22 Feb 2015

This dataset was first added to LINZ Data Service on 22 Feb 2015.

For further information about this dataset, see the Canterbury earthquake information.

Coordinates computed by adding the effects of deep-seated movement to survey points that had authoritative survey-accurate digital cadastre (SDC) coordinates immediately prior to 4 September 2010 (the first Canterbury earthquake). Marks that did not have SDC status at that time are not included in the dataset. Deep-seated movements were evaluated using the NZGD2000 deformation model.

  • The 'nod_id' column is the Landonline node id. This is the unique identifier for the mark.
  • The 'current_name' column is the Landonline mark name.
  • The 'east_mtpleatm2000' and 'north_mtpleatm2000' columns are the east and north coordinates (metres) in terms of the Mt Pleasant 2000 transverse mercator projection. Rounded to the nearest centimetre.
  • The 'coord_order' column is the Landonline coordinate order immediately prior to 4 September 2010.

The estimated absolute uncertainty of these coordinates is 0.09m at the 95% confidence level.

These coordinates are intended for the use of Licensed Cadastral Surveyors when locating boundaries in Christchurch, in accordance with the Rules for Cadastral Survey 2010 and associated guidance, particularly guidance relating to the earthquakes.

Layer ID 52349
Data type Vector point
Feature count 50181
Primary key nod_id
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Sportsfield Polygons (Topo, 1:50k)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

27347
1110
Updated
23 Sep 2022

This dataset was last updated on LINZ Data Service on 23 Sep 2022.

A field on which sporting activities are carried out

Data Dictionary for sportsfield_poly: docs.topo.linz.govt.nz/data-dictionary/tdd-class-s...

This layer is a component of the Topo50 map series. The Topo50 map series provides topographic mapping for the New Zealand mainland, Chatham and New Zealand's offshore islands, at 1:50,000 scale.

Further information on Topo50:
www.linz.govt.nz/topography/topo-maps/topo50

Layer ID 50355
Data type Vector polygon
Feature count 27
Primary key t50_fid
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Canterbury Earthquake Precise-Levelling Heights (2010, 2011)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

28235
127
Updated
04 Sep 2014

This dataset was last updated on LINZ Data Service on 04 Sep 2014.

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.

Users may also be interested in the horizontal coordinates derived from GNSS data in the companion layers Canterbury Earthquake Geodetic Marks (2010, 2011) - Comprehensive and Canterbury Earthquake Geodetic Marks (2010, 2011) - Simple

Horizontal Accuracy (standard deviation) approx 1m.
Vertical Accuracy of Lyttelton Vertical Datum 1937 heights (standard deviation) 0.005m.

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.

These heights are only provisional. Analysis is ongoing as further data is collected.
Heights calculated using SNAP v2.3.64.
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.
Some heights were calculated from precise levelling data provided by Christchurch City Council.

These coordinates are suitable for use in surveys and other geospatial activities in Canterbury and Christchurch.

For further information about this dataset, see the Canterbury earthquake information on the LINZ website.

Layer ID 51688
Data type Vector point
Feature count 600
Primary key nod_id
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Well Points (Topo, 1:50k)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

27511
800
Updated
23 Sep 2022

This dataset was last updated on LINZ Data Service on 23 Sep 2022.

A pit or hole dug or bored into the earth

Data Dictionary for well_pnt: docs.topo.linz.govt.nz/data-dictionary/tdd-class-w...

This layer is a component of the Topo50 map series. The Topo50 map series provides topographic mapping for the New Zealand mainland, Chatham and New Zealand's offshore islands, at 1:50,000 scale.

Further information on Topo50:
www.linz.govt.nz/topography/topo-maps/topo50

Layer ID 50375
Data type Vector point
Feature count 109
Primary key t50_fid
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Canterbury - Mackenzie LiDAR Index Tiles (2015)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

28134
86
Added
21 Dec 2018

This dataset was first added to LINZ Data Service on 21 Dec 2018.

This layer contains the Index Tiles for LiDAR data from the Mackenzie Region, Canterbury captured in 2015.

Lidar was captured for Genesis Energy Limited by Aerial Surveys Limited in Feb 2015. The original dataset was generated by Aerial Surveys and their subcontractors. This reprocessed dataset was supplied by Aerial Surveys to Toitū Te Whenua Land Information New Zealand, and includes a large area (peripheral data from the original survey). The survey area is in the Mackenzie District of Canterbury, between Lake Tekapo, Lake Pukaki, Lake Ohau and Lake Ruataniwha. This area also includes Twizel Township. Data management and distribution is by Toitū Te Whenua Land Information New Zealand.

Data comprises:

  • DEM: tif or asc tiles in NZTM2000 projection, tiled into a 1:1,000 tile layout

  • DSM: tif or asc tiles in NZTM2000 projection, tiled into a 1:1,000 tile layout

  • Point cloud: las tiles in NZTM2000 projection, tiled into a 1:1,000 tile layout

Pulse density specification is 1 pulse/square metre.

Vertical datum is NZVD2016.

Layer ID 99194
Data type Vector polygon
Feature count 2596
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Cave Points (Topo, 1:250k)

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

27626
404
Updated
23 Sep 2022

This dataset was last updated on LINZ Data Service on 23 Sep 2022.

A naturally formed, subterranean open area or chamber.

Data Dictionary for cave_pnt: docs.topo.linz.govt.nz/data-dictionary/tdd-class-c...

This layer is a component of the Topo250 map series. The Topo250 map series provides topographic mapping for the New Zealand mainland and Chatham Islands, at 1:250,000 scale.

Further information on Topo250: www.linz.govt.nz/topography/topo-maps/topo250

Layer ID 50156
Data type Vector point
Feature count 62
Primary key t250_fid
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
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