NZ Orthophotos 1995-1996

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

31658
459
Added
29 Sep 2011

This dataset was first added to LINZ Data Service on 29 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 51048
Data type Image/Raster
Resolution 2.500m
Services Raster Tiles Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Christchurch Post-EQ Survey-Accurate (SDC) 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.

31426
685
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. Many boundary marks do not have a name recorded in this dataset, because this information has not been digitally captured.
  • 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 52350
Data type Vector point
Feature count 415489
Primary key nod_id
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Chart NZ 6321 Lyttelton Harbour / Whakaraupō: Port of Lyttelton

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

31537
549
Updated
07 Aug 2022

This dataset was last updated on LINZ Data Service on 07 Aug 2022.

Raster chart image of: NZ 6321 Lyttelton Harbour / Whakaraupo: Port of Lyttelton

This data was compiled for the use at the following scale: 7500

File reference: NZ632102.tif

THIS DATA DOES NOT REPLACE NAUTICAL CHARTS AND MUST NOT TO BE USED FOR NAVIGATION.

The hydrographic raster data made available through the LINZ Data Service is based on the Paper Navigational Charts published and maintained by the New Zealand Hydrographic Authority at Land Information New Zealand (LINZ).

The online New Zealand Chart Catalogue provides more detailed and the most up to date information about New Zealand charts: New Zealand Chart Catalogue

Information on symbols and abbreviations used on nautical charts: Symbols and Abbreviations

Hydrographic standards and specifications for nautical charts and publications: Standards and Specifications

Layer ID 51414
Data type Image/Raster
Resolution About 0.318m
Services Raster Tiles Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

Canterbury Earthquake Geodetic Marks (2010, 2011) - Comprehensive

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

30969
302
Added
26 Apr 2013

This dataset was first added to LINZ Data Service on 26 Apr 2013.

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.

Users may also be interested in the simplified data in the companion layer Canterbury Earthquake Geodetic Marks (2010, 2011) - Simple.

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.

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.

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.

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.

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.

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).

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

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

Layer ID 51588
Data type Vector point
Feature count 818
Primary key nod_id
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Chart NZ 6324 Akaroa Harbour: French Bay

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

30750
378
Updated
06 Jul 2017

This dataset was last updated on LINZ Data Service on 06 Jul 2017.

Raster chart image of: NZ 6324 Akaroa Harbour: French Bay

This data was compiled for the use at the following scale: 1:15000

File reference: NZ632402.tif

THIS DATA DOES NOT REPLACE NAUTICAL CHARTS AND MUST NOT TO BE USED FOR NAVIGATION.

The hydrographic raster data made available through the LINZ Data Service is based on the Paper Navigational Charts published and maintained by the New Zealand Hydrographic Authority at Land Information New Zealand (LINZ).

The online New Zealand Chart Catalogue provides more detailed and the most up to date information about New Zealand charts: New Zealand Chart Catalogue

Information on symbols and abbreviations used on nautical charts: Symbols and Abbreviations

Hydrographic standards and specifications for nautical charts and publications: Standards and Specifications

Layer ID 51415
Data type Image/Raster
Resolution About 0.636m
Services Raster Tiles Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Canal 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.

29193
1533
Updated
23 Sep 2022

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

An artificial open waterway used for transportation, waterpower or irrigation.

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

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 50251
Data type Vector polygon
Feature count 88
Primary key t50_fid
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Selwyn 0.125m Urban Aerial Photos Index Tiles (2012-2013)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

29987
83
Added
14 Apr 2014

This dataset was first added to LINZ Data Service on 14 Apr 2014.

Index Tiles ONLY, for actual orthophotos see layer Selwyn 0.125m Urban Aerial Photos (2012-13)

Orthophotography for the Selwyn District Council taken during 2012. Coverage encompassed the urban areas within the Selwyn District Council area.

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

Data comprises:
•1,970 x ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:1,000 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 1:1,000 tiles. Please refer to the supplied tile layout shape file for specific details, naming conventions, etc.
Imagery supplied as 12.5cm pixel resolution (0.125m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is +/-0.2m.

Layer ID 51935
Data type Vector polygon
Feature count 1970
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Magnetic variation points (Hydro, 1:4k - 1:22k)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

29669
133
Updated
16 Mar 2022

This dataset was last updated on LINZ Data Service on 16 Mar 2022.

The angle between the magnetic and geographic (true) north at a location, expressed in degrees east or west from the direction of true north.

S-57 Object Class: Magnetic variation

S-57 Acronym: MAGVAR

This data was compiled for the use in the scale range 1:4,000 to 1:22,000.

THIS DATA DOES NOT REPLACE NAUTICAL CHARTS AND MUST NOT BE USED FOR NAVIGATION.

This data is based on the S-57 data format used in Electronic Navigational Charts (ENCs) published and maintained by the New Zealand Hydrographic Authority at Land Information New Zealand (LINZ). Refer to the following link for information about S-57 data: www.linz.govt.nz/hydro/regulation/

Layer ID 50698
Data type Vector point
Feature count 32
Primary key fidn
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Wharf Edges (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.

28409
1032
Updated
23 Sep 2022

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

Any structure on a waterfront, designed to make it possible for vessels to lie alongside and take or unload cargo, passengers etc.

Data Dictionary for wharf_edge: 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 50377
Data type Vector linestring
Feature count 124
Primary key t50_fid
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Spring 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.

27739
1441
Updated
23 Sep 2022

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

The place where water issues from the ground naturally

Data Dictionary for spring_pnt: 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 50356
Data type Vector point
Feature count 155
Primary key t50_fid
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
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