Canterbury - Timaru Rivers LiDAR 1m DEM (2014)

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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.

1429
73
Added
10 Jan 2017

This dataset was first added to LINZ Data Service on 10 Jan 2017.

This layer contains the DEM for LiDAR data from the Timaru river areas captured in 2014.
The DSM is available as layer Canterbury - Timaru Rivers LiDAR 1m DSM (2014).
The index tiles are available as layer Canterbury - Timaru Rivers LiDAR Index Tiles (2014).
The LAS point cloud and vendor project reports are available from OpenTopography.

Lidar was captured for Environment Canterbury Regional Council by Aerial Surveys in July and August 2014. The datasets were generated by Aerial Surveys and their subcontractors. The survey area includes the Geraldine and Temuka township areas and the lower Rangitata, Orari, and Opihi river corridors. Data management and distribution is by 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

Planned pulse density is > 1 pulse/square metre.

Vertical datum is NZVD2016.

Layer ID 53554
Data type Grid
Resolution 1.000m
Services Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

Canterbury - Rangiora LiDAR Index Tiles (2014)

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

1452
42
Added
06 Mar 2017

This dataset was first added to LINZ Data Service on 06 Mar 2017.

This layer contains the index tiles for LiDAR data from the Rangiora area captured in 2014.
The DEM is available as layer Canterbury - Rangiora LiDAR 1m DEM (2014).
The DSM is available as layer Canterbury - Rangiora LiDAR 1m DSM (2014).
The LAS point cloud and vendor project reports are available from OpenTopography.

Lidar was captured for Waimakariri District Council and Environment Canterbury Regional Council by Aerial Surveys in March – June 2014. The datasets were generated by Aerial Surveys and their subcontractors. The survey area includes the Rangiora township area and the lower Ashley, Eyre, and Waimakariri river channels. Data management and distribution is by 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

Planned pulse density is 1 pulse/square metre.

Vertical datum is NZVD2016.

Layer ID 53573
Data type Vector polygon
Feature count 1626
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Canterbury - Kaikoura LiDAR 1m DSM (2012)

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

1203
102
Added
10 Jan 2017

This dataset was first added to LINZ Data Service on 10 Jan 2017.

This layer contains the DSM for LiDAR data from the Kaikoura area captured in 2012.
The DEM is available as layer Canterbury - Kaikoura Lidar 1m DEM (2012).
The index tiles are available as layer Canterbury - Kaikoura Lidar Index Tiles (2012).
The LAS point cloud and vendor project reports are available from OpenTopography.

Lidar was captured for Environment Canterbury Regional Council by Aerial Surveys in 2012. Note that this capture was prior to the significant vertical and horizontal displacements from the 2016 Kaikoura earthquakes. The datasets were generated by Aerial Surveys and their subcontractors. The survey area includes the Kaikoura township area and adjacent coastal strips. Data management and distribution is by Land Information New Zealand.

Data comprises:
•DEM: tif or asc files in NZTM2000 projection, tiled into a 1:1,000 tile layout
•DSM: tif or asc files in NZTM2000 projection, tiled into a 1:1,000 tile layout
•Point cloud: las files in NZTM2000 projection, tiled into a 1:1,000 tile layout

Data was collected at >1 pulse/square metre pulse density. Attributes include:
-Elevation
-Intensity values
-Return number
-Adjusted GPS time
-Classification

Vertical accuracy specification is +/-0.2m (@ 95% confidence)
Vertical datum is NZVD2016

Layer ID 53545
Data type Grid
Resolution 1.000m
Services Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

Canterbury - Hurunui Rivers LiDAR 1m DSM (2013)

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

1092
30
Added
09 Mar 2017

This dataset was first added to LINZ Data Service on 09 Mar 2017.

This layer contains the DSM for LiDAR data from the Hurunui District captured in 2013.
The DEM is available as layer Canterbury - Hurunui Rivers LiDAR 1m DEM (2013).
The index tiles are available as layer Canterbury - Hurunui Rivers LiDAR Index Tiles (2013).
The LAS point cloud and vendor project reports are available from OpenTopography.

Lidar was captured for Environment Canterbury Regional Council by Aerial Surveys in May 2013. The datasets were generated by Aerial Surveys and their subcontractors. The survey area includes Hanmer Springs, Hanmer Plain, Waiau, Waiau River, Hurunui River, Pahau River, and Culverden. Data management and distribution is by 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

Data was collected at >1 pulse/square metre pulse density. Attributes include:
-Elevation
-Intensity values
-Return number
-Adjusted GPS time
-Classification

Vertical datum is NZVD2016

Layer ID 53580
Data type Grid
Resolution 1.000m
Services Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

Moturiki 1953 to NZGD2000 Conversion

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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.

1023
43
Updated
02 Aug 2016

This dataset was last updated on LINZ Data Service on 02 Aug 2016.

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.

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).

The conversion value is represented by the attribute “delta”, in metres.

This grid is a combination of New Zealand Quasigeoid 2016 NZGeoid2016 and the MOT53-NZVD2016 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.

More information on converting heights between vertical datums can be found on the LINZ website.

Layer ID 53433
Data type Vector point
Feature count 57937
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Airborne Gravity Free-Air Anomalies at Ground Surface (2013-2014)

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

1009
46
Updated
30 Jan 2017

This dataset was last updated on LINZ Data Service on 30 Jan 2017.

Introduction
This dataset provides a 1 arc minute raster image of the free-air gravity anomalies, which have been downward continued to the ground surface (McCubbine et al, 2017).

Description
Gravity anomalies are differences between measured gravity (from the airborne gravity dataset) and an ellipsoidal model of the Earth’s gravity field (GRS80). Gravity anomalies correspond to un-modelled density variations within the Earth’s crust and upper mantle. They are used to investigate concealed geological structures and for quasigeoid modelling.

These free-air anomalies show values which include gravitation impact of the topography.

The national airborne gravity dataset is comprised of more than 50,000 linear km of flight observations, covering the three main islands of New Zealand and up to 10km offshore.

As the airborne gravity dataset was measured at flight altitude, the observations have been reduced to the ground surface (a process known as downward continuation).

The national airborne gravity dataset was collected as a joint project between Land Information New Zealand (LINZ), GNS Science (GNS) and Victoria University of Wellington (VUW). The airborne survey was completed in a total of eight months, over two campaigns: August – October 2013, and February – June 2014.

Users may also be interested other layers created for Bouguer anomalies at ground surface and the along track observations from the gravity flight lines at flight elevation NZ Airborne Gravity Bouguer Anomalies at Ground Surface (2013-2014) and NZ Airborne Gravity Flight Lines at Elevation (2013-2014).

McCubbine, J. Stagpoole, V. Caratori-Tontini, F. Amos, M. Smith, E. and Winefield, R. (2017). Gravity anomaly grids for the New Zealand region. Manuscript submitted for publication New Zealand Journal of Geology and Geophysics.

Layer ID 53532
Data type Grid
Resolution About 1579.000m
Services Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

Canterbury - Hawarden LiDAR 1m DSM (2015)

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

1016
13
Added
10 Jan 2017

This dataset was first added to LINZ Data Service on 10 Jan 2017.

This layer contains the DSM for LiDAR data from the Hawarden area captured in 2015.
The DEM is available as layer Canterbury - Hawarden LiDAR 1m DEM (2015).
The index tiles are available as layer Canterbury - Hawarden LiDAR Index Tiles (2015).
The LAS point cloud and vendor project reports are available from OpenTopography.

Lidar was captured for Environment Canterbury Regional Council by Aerial Surveys on 1 April 2015, under survey name Hurunui. The datasets were generated by Aerial Surveys and their subcontractors. The survey area includes the Hawarden township area. Data management and distribution is by 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

Planned pulse density is 1.3 pulses/square metre.

Vertical accuracy specification is per the ICSM LiDAR Acquisition Specifications and Tender Template NZ Version March 2011.

Vertical datum is NZVD2016.

Layer ID 53551
Data type Grid
Resolution 1.000m
Services Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

Taranaki 1970 to NZGD2000 Conversion

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

974
19
Updated
09 Aug 2016

This dataset was last updated on LINZ Data Service on 09 Aug 2016.

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.

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).
The conversion value is represented by the attribute “delta”, in metres.

This grid is a combination of New Zealand Quasigeoid 2016 NZGeoid2016 and the TNK70-NZVD2016 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.

More information on converting heights between vertical datums can be found on the LINZ website.

Layer ID 53443
Data type Vector point
Feature count 28561
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Trig Points (Topo, 1:50k)

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

0
0
Updated
19 Jul 2019

This dataset was last updated on LINZ Data Service on 19 Jul 2019.

A structure on top of a hill, usually coloured black and white, used as a physical reference point by surveyors to determine location. The symbol shown on the map includes the elevation and trig identification code for beaconed trig stations.

Data Dictionary for trig_pnt: The NZ Topographic Data Dictionary is yet to be updated for trig points.

These topographic trig points are derived from New Zealand geodetic marks data which can also be accessed through the LINZ Data Service: NZ Geodetic Marks and NZ Geodetic Vertical Marks.

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 103476
Data type Vector point
Feature count 5789
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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