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.

3132
108
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

Canterbury 0.3m Rural Aerial Photos Index Tiles (2014-2015)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

3145
93
Added
15 Sep 2015

This dataset was first added to LINZ Data Service on 15 Sep 2015.

Index Tiles ONLY, for actual orthophotos see layer Canterbury 0.3m Rural Aerial Photos (2014-15)

Orthophotography for the Canterbury region taken in the flying season (summer period) 2014 - 2015. Coverage encompassed the Hurunui, and Kaikoura council areas.

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

Data comprises:
•1,661 x ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:5,000 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 1:5,000 tiles. Please refer to the supplied tile layout shape file for specific details, naming conventions, etc.

Imagery supplied as 30cm pixel resolution (0.3m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is +/-0.6m.

Layer ID 52427
Data type Vector polygon
Feature count 1661
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Wharf Centrelines (Topo, 1:250k)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

3047
180
Updated
15 Apr 2019

This dataset was last updated on LINZ Data Service on 15 Apr 2019.

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_cl: apps.linz.govt.nz/topo-data-dictionary/index.aspx?...

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 50198
Data type Vector linestring
Feature count 3
Primary key t250_fid
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Airport/airfield points (Hydro, 1:90k - 1:350k)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

3093
82
Updated
12 Jul 2018

This dataset was last updated on LINZ Data Service on 12 Jul 2018.

An area containing at least one runway, used for landing, take-off, and movement of aircraft.

S-57 Object Class: Airport/airfield

S-57 Acronym: AIRARE

This data was compiled for the use in the scale range 1:90,000 to 1:350,000.

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 50056
Data type Vector point
Feature count 9
ElevationZ coordinates
Primary key fidn
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

River polygon (Hydro, 1:90k - 1:350k)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

2800
107
Updated
19 Dec 2018

This dataset was last updated on LINZ Data Service on 19 Dec 2018.

A relatively large natural stream of water.

S-57 Object Class: River

S-57 Acronym: RIVERS

This data was compiled for the use in the scale range 1:90,000 to 1:350,000.

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 50492
Data type Vector multipolygon
Feature count 108
ElevationZ coordinates
Primary key fidn
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Built-up area polygon (Hydro, 1:1.5mil and smaller)

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Creative Commons Attribution 4.0 International

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2827
49
Updated
17 Dec 2018

This dataset was last updated on LINZ Data Service on 17 Dec 2018.

An area containing a concentration of buildings and the supporting road or rail infrastructure.

S-57 Object Class: Built-up area

S-57 Acronym: BUAARE

This data was compiled for the use in the scale range 1:1,500,000 and smaller.

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 51644
Data type Vector multipolygon
Feature count 17
ElevationZ coordinates
Primary key fidn
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Shoreline construction polyline (Hydro, 1:350k - 1:1,500k)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

2830
39
Updated
18 Dec 2018

This dataset was last updated on LINZ Data Service on 18 Dec 2018.

A fixed (not afloat) artificial structure between the water and the land, i.e. a man-made coastline.

S-57 Object Class: Shoreline construction

S-57 Acronym: SLCONS

This data was compiled for the use in the scale range 1:350,000 to 1:1,500,000.

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 50417
Data type Vector multilinestring
Feature count 5
ElevationZ coordinates
Primary key fidn
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Orthophotos 1994-1995

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Creative Commons Attribution 4.0 International

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2709
125
Added
22 Sep 2011

This dataset was first added to LINZ Data Service on 22 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 51022
Data type Image/Raster
Resolution 2.500m
Services Web Map Service (WMS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Airport Points (Topo, 1:500k)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

2436
305
Updated
09 May 2018

This dataset was last updated on LINZ Data Service on 09 May 2018.

A facility where aircraft can take off and land; usually consists of hard-surfaced landing strips, a control tower, hangars and accommodation for passengers and cargo

Data Dictionary for airport_pnt: apps.linz.govt.nz/topo-data-dictionary/index.aspx?...

This layer is a component of the Topo500 data. The Topo500 map series will, when it is created, provide updated topographic mapping for the New Zealand mainland at 1:500,000 scale.

Layer ID 50201
Data type Vector point
Feature count 32
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Land region polygon (Hydro, 1:1.5mil and smaller)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

2428
33
Updated
17 Dec 2018

This dataset was last updated on LINZ Data Service on 17 Dec 2018.

An area of natural scenery on land. It is defined by its geographical characteristics and may be known by its proper name.

S-57 Object Class: Land region

S-57 Acronym: LNDRGN

This data was compiled for the use in the scale range 1:1,500,000 and smaller.

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 51628
Data type Vector multipolygon
Feature count 33
ElevationZ coordinates
Primary key fidn
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
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