Canterbury Earthquake Geodetic Marks (2010, 2011) - Simple

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

5601
98
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. 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).

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

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.

The estimated accuracy is 0.02m horizontally and 0.03m vertically.

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.

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 51589
Data type Vector point
Feature count 719
Primary key nod_id
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Wharf Edges (Topo, 1:250k)

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Creative Commons Attribution 4.0 International

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5341
250
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_edge: 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 50199
Data type Vector linestring
Feature count 14
Primary key t250_fid
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.

5217
207
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

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.

5333
77
Updated
07 Jan 2020

This dataset was last updated on LINZ Data Service on 07 Jan 2020.

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 multipoint
Feature count 40
ElevationZ coordinates
Primary key fidn
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.

5308
101
Updated
06 Jan 2020

This dataset was last updated on LINZ Data Service on 06 Jan 2020.

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 multipoint
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

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.

5251
111
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 Orthophotos 1994-1995

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

4998
138
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

Canterbury Earthquake Survey Mark Movements

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

4943
119
Added
12 Sep 2016

This dataset was first added to LINZ Data Service on 12 Sep 2016.

This layer details the movement of survey marks due to the Canterbury Earthquake Sequence (CES). The movements include the impact of 5 major earthquakes on 4 September 2010, 22 February 2011, 13 June 2011, 23 December 2011 and 14 February 2016.

Note that these movements apply only at the survey mark. Nearby land may have moved differently, especially in areas impacted by substantial shallow ground movement.

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

Scope

Movements do not include the regular tectonic movement (not related to earthquakes) of approximately 5cm per year.

As well as Christchurch, the data covers Lyttelton, Spencerville, Kaiapoi, Pines Beach, Woodend, Pegasus and Waikuku Beach.

Mark Movement Calculations

Observed mark movements have been calculated from geodetic and cadastral survey data collected at the same physical survey mark before and after the earthquakes. Various filters have been applied to ensure as far as practicable that the movements reflect real-world earthquake-related movements of marks. For example, only non-boundary marks that have been directly measured (rather than adopted) are included.

Modelled mark movements have been calculated using models of the tectonic-scale movements resulting from each earthquake, supplied by GNS Science, supplemented with more detailed modelling carried out by LINZ. These models typically represent deep-seated movement only. They do not include shallow movement, such as that resulting from liquefaction.

Therefore the difference between the post-earthquake observed and post-earthquake modelled position generally represents shallow ground movement. The difference between the post-earthquake modelled and pre-earthquake observed position generally represents deep-seated movement. The difference between the post-earthquake observed position and pre-earthquake observed position represents total movement due to the earthquakes.

Accuracy

The uncertainty of the coordinate changes is 0.1m at a 95% confidence interval.

Layer Attributes

  • nod_id_post_eq: Landonline node id for the latest post-earthquake node (mark)
  • code_post_eq: Geodetic code for the latest post-earthquake node
  • name_post_eq: Mark name for the latest post-earthquake node
  • nod_id_pre_eq: Landonline node id for the pre-earthquake node (mark)
  • code_pre_eq: Geodetic code for the pre-earthquake node
  • name_pre_eq: Mark name for the pre-earthquake node
  • de_mod_obs: East change from modelled post-earthquake to observed post-earthquake position
  • dn_mod_obs: North change from modelled post-earthquake to observed post-earthquake position
  • hz_mod_obs: Horizontal change from modelled post-earthquake to observed post-earthquake position
  • bg_mod_obs: Bearing from modelled post-earthquake to observed post-earthquake position
  • de_pre_mod: East change from observed pre-earthquake to modelled post-earthquake position
  • dn_pre_mod: North change from observed pre-earthquake to modelled post-earthquake position
  • hz_pre_mod: Horizontal change from observed pre-earthquake to modelled post-earthquake position
  • bg_pre_mod: Bearing from observed pre-earthquake to modelled post-earthquake position
  • de_pre_obs: East change from observed pre-earthquake to observed post-earthquake position
  • dn_pre_obs: North change from observed pre-earthquake to observed post-earthquake position
  • hz_pre_obs: Horizontal change from observed pre-earthquake to observed post-earthquake position
  • bg_pre_obs: Bearing from observed pre-earthquake to observed post-earthquake position
Layer ID 53455
Data type Vector point
Feature count 8882
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Pipeline, submarine/on land polyline (Hydro, 1:22k - 1:90k)

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Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

4769
132
Updated
07 Jan 2020

This dataset was last updated on LINZ Data Service on 07 Jan 2020.

A pipeline is a string of interconnected pipes used for the transport of matter, nowadays mainly oil or gas. A submarine or land pipeline is a pipeline lying on or buried under the seabed or the land.

S-57 Object Class: Pipeline, submarine/on land

S-57 Acronym: PIPSOL

This data was compiled for the use in the scale range 1:22,000 to 1:90,000.

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 50591
Data type Vector multilinestring
Feature count 44
ElevationZ coordinates
Primary key fidn
Services Vector Query API, Web Feature Service (WFS), 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.

4529
336
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
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