Selwyn 0.125m Urban Aerial Photos (2012-2013)

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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.

98750
466
Added
05 Mar 2014

This dataset was first added to LINZ Data Service on 05 Mar 2014.

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.

Index tiles for this dataset are available as layer Selwyn 0.125m Urban Aerial Photos Index Tiles (2012-13)

Layer ID 51926
Data type Image/Raster
Resolution Unknown
Services 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

You may use this work for commercial purposes.

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

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

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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.

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

Current - non-gravitational points (Hydro, 1:1.5mil and smaller)

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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.

2664
27
Updated
17 Dec 2018

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

Currents (non-gravitational) include either singly or in combination: ocean currents (wind and/or density driven), inter-oceanic equalising currents, currents of navigable rivers, river outflow effects offshore and other non-tidal flows.

S-57 Object Class: Current - non-gravitational

S-57 Acronym: CURENT

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 51640
Data type Vector point
Feature count 45
ElevationZ coordinates
Primary key fidn
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)

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

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

Canterbury Earthquake Geodetic Marks (2010, 2011) - Simple

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

3324
92
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

Canterbury Earthquake Geodetic Marks (2010, 2011) - Comprehensive

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

6125
228
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

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

3740
160
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 Web Map Service (WMS), Catalog Service (CS-W), data.govt.nz Atom Feed

Chart NZ 6321 Lyttelton Harbour / Whakaraupo: Port of Lyttelton

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

3692
227
Updated
19 Jul 2018

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

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 Web Map Service (WMS), Catalog Service (CS-W), data.govt.nz Atom Feed

Chart NZ 6324 Akaroa Harbour

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

5965
239
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

This data was compiled for the use at the following scale: 1:30000

File reference: NZ632401.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 51328
Data type Image/Raster
Resolution About 1.271m
Services Web Map Service (WMS), Catalog Service (CS-W), data.govt.nz Atom Feed
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