Antarctic Geodetic Marks

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

4032
69
Updated
19 Oct 2019

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

This dataset provides information about the position, position accuracy, mark name, mark type, condition and unique four letter code for geodetic marks in terms of New Zealand's official geodetic datum for the Ross Dependency.

This dataset only includes marks that are within Antarctica. These positions have been generated using geodetic observations such as precise differential GPS or electronic distance and theodolite angles measurements. The positions are either 2D or 3D depending of the availability of this measurement data.

The source data is from Land Information New Zealand's (LINZ) Landonline system where it is used by Land Surveyors. This dataset is updated daily to reflect changes made in the Landonline.

Accuracy

Geodetic marks with a coordinate order of 5 or less have been positioned in terms of Ross Sea Region Geodetic Datum 2000 (RSRGD2000) using precise differential GPS techniques. Marks with order 6 have been positioned in terms of RSRGD2000 using precise horizontal angles and distance measurements. Lower order marks (order 7 and greater) are derived from lower accuracy measurement techniques or historical datum transformations, and may be significantly less accurate.

The accuracy of RSRGD2000 coordinates is described by a series of 'orders' classifications. Positions in terms of RSRGD2000 are described by three-dimensional coordinates (latitude, longitude, ellipsoidal height). The accuracy of a survey mark is indicated by its order. Orders are classifications based on the quality of the coordinate in relation to the datum and in relation to other surrounding marks. For more information see www.linz.govt.nz/geodetic/datums-projections-heigh...

Note that the accuracy applies at the time the mark was last surveyed. Refer to the web geodetic database for historical information about mark coordinates.

Note also that the existence of a mark in this dataset does not imply that there is currently a physical mark in the ground - the dataset includes destroyed or lost historical marks. The geodetic database provides more information on the mark status, valid at last time it was visited by LINZ.

Layer ID 50789
Data type Vector point
Feature count 468
Primary key id
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Antarctic Geodetic Vertical Marks

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

3667
47
Updated
19 Oct 2019

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

This dataset provides information about the position, height, height datum, height accuracy, mark name, mark type, condition and unique four letter identifier for geodetic marks that have an authoritative height in terms of a vertical datum.
Heights are in datums defined at www.linz.govt.nz/geodetic/datums-projections-heigh....

All marks will have positions in terms of New Zealand’s official geodetic datum for Antarctica, Ross Sea Region Geodetic Datum 2000 (RSRGD2000). The horizontal positions of marks are provided for approximate location purposes only.

This dataset only includes marks that are within the Antarctic region. The height data for these marks have been generated primarily using precise vertical angle and slope distance measurements from datum tide gauges. Some have been generated from levelling data.

The source data is from Land Information New Zealand's (LINZ) Landonline system where it is used by Land Surveyors. This dataset is updated daily to reflect changes made in the Landonline.

Accuracy

The accuracy of normal-orthometric heights are described by height orders.

For more information see www.linz.govt.nz/geodetic/datums-projections-heigh....

Note the accuracy applies at the time the mark was last surveyed - see the geodetic database for historical information about height coordinates.

Layer ID 50788
Data type Vector point
Feature count 279
Primary key id
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Antarctic Scanned Sounding Sheet Index

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

3155
16
Updated
21 Jul 2016

This dataset was last updated on LINZ Data Service on 21 Jul 2016.

This index enables you to identify the freely available georeferenced TIFF images of sounding sheets held by LINZ for the Antarctic (Ross Dependency) coastal area. Some of these sounding sheets date back to the 1950s. The polygons comprising the index show the extent of each original hard copy sheet - not just the soundings shown on the sheet. The attributes attached to each polygon will enable you to view, amongst other attributes, the date and scale of the bathymetric data shown on the sounding sheet.

Please refer to the LINZ Bathymetric Index Data Dictionary for further information about the attributes of this dataset.

The georeferenced TIFF images are not downloadable from the LINZ Data Service.

Requests for sounding sheets should be sent to customersupport@linz.govt.nz with "Hydro Bathy Data" in the subject line. Requests must, as a minimum, specify the id, chart_no and serial_no as shown in the attributes attached to each polygon representing the sounding sheets of interest.

Layer ID 53410
Data type Vector polygon
Feature count 71
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Auckland 0.075m Urban Aerial Photos (2010)

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

111884
963
Added
24 Dec 2013

This dataset was first added to LINZ Data Service on 24 Dec 2013.

Orthophotography for the Auckland Council taken during 2010. Coverage encompassed selected urban areas within the Auckland Council area.

Imagery was captured for ‘Auckland Council’ by NZ Aerial Mapping Ltd, 208 Warren Street, PO Box 6, Hastings 4156, New Zealand

Data has subsequently been provided to LINZ and this comprises:
•470 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 7.5cm pixel resolution (0.075m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is +/-0.3m (@ 90% confidence).

Index tiles for this dataset are available as layer Auckland 0.075m Urban Aerial Photos Index Tiles (2010)

Layer ID 51866
Data type Image/Raster
Resolution Unknown
Services Catalog Service (CS-W), data.govt.nz Atom Feed

Auckland 0.075m Urban Aerial Photos (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.

117998
1337
Added
24 Dec 2013

This dataset was first added to LINZ Data Service on 24 Dec 2013.

Orthophotography for the Auckland Council taken during 2012. Coverage encompassed selected urban areas within the Auckland Council area.

Imagery was captured for ‘Auckland Council’ by NZ Aerial Mapping Ltd, 208 Warren Street, PO Box 6, Hastings 4156, New Zealand.

Data has subsequently been provided to LINZ and this comprises:
•185 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 7.5cm pixel resolution (0.075m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is +/-0.3m (@ 90% confidence).

Index tiles for this dataset are available as layer Auckland 0.075m Urban Aerial Photos Index Tiles (2012).

Layer ID 51867
Data type Image/Raster
Resolution Unknown
Services Catalog Service (CS-W), data.govt.nz Atom Feed

Auckland 0.075m Urban Aerial Photos (2015-2016)

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

29858
2168
Added
24 Sep 2017

This dataset was first added to LINZ Data Service on 24 Sep 2017.

Orthophotography over Auckland City taken in the flying season (summer period) 2015 -16.

Imagery was captured for the ‘Auckland Council’ by AAM NZ Limited, 6 Ossian St, NAPIER, New Zealand.

Data has subsequently been provided to LINZ and this comprises:
• 4,835 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 7.5cm pixel resolution (0.075m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is +/- 15 cm.

Index tiles for this dataset are available as layer Auckland 0.075m Urban Aerial Photos Index Tiles (2015-16)

Layer ID 88142
Data type Image/Raster
Resolution 0.075m
Services Catalog Service (CS-W), data.govt.nz Atom Feed

Auckland 0.075m Urban Aerial Photos (2017)

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

74770
6060
Added
13 Jun 2018

This dataset was first added to LINZ Data Service on 13 Jun 2018.

Orthophotography of urbans areas within Auckland taken in the flying seasons (summer period) 2016-17.

Imagery was captured for the ‘Auckland Council’ by AAM NZ Limited, 6 Ossian St, NAPIER, New Zealand.

Data comprises:
•7,801 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 7.5cm pixel resolution (0.075m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is ± 0.15m @ 90% confidence level.

Index tiles for this dataset are available as layer Auckland 0.075m Urban Aerial Photos Index Tiles (2017)

Layer ID 95497
Data type Image/Raster
Resolution 0.075m
Services Catalog Service (CS-W), data.govt.nz Atom Feed

Auckland 0.075m Urban Aerial Photos Index Tiles (2010)

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

4672
84
Added
04 Feb 2014

This dataset was first added to LINZ Data Service on 04 Feb 2014.

Index Tiles ONLY, for actual orthophotos see layer Auckland 0.075m Urban Aerial Photos (2010).

Orthophotography for the Auckland Council taken during 2010. Coverage encompassed selected urban areas within the Auckland Council area.

Imagery was captured for ‘Auckland Council’ by NZ Aerial Mapping Ltd, 208 Warren Street, PO Box 6, Hastings 4156, New Zealand.

Data has subsequently been provided to LINZ and this comprises:
•470 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 7.5cm pixel resolution (0.075m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is +/-0.3m (@ 90% confidence).

Layer ID 51884
Data type Vector polygon
Feature count 470
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Auckland 0.075m Urban Aerial Photos Index Tiles (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.

4685
85
Added
05 Feb 2014

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

Index Tiles ONLY, for actual orthophotos see layer Auckland 0.075m Urban Aerial Photos (2012).

Orthophotography for the Auckland Council taken during 2012. Coverage encompassed selected urban areas within the Auckland Council area.

Imagery was captured for ‘Auckland Council’ by NZ Aerial Mapping Ltd, 208 Warren Street, PO Box 6, Hastings 4156, New Zealand.

Data has subsequently been provided to LINZ and this comprises:
•185 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 7.5cm pixel resolution (0.075m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is +/-0.3m (@ 90% confidence).

Layer ID 51890
Data type Vector polygon
Feature count 185
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Auckland 0.075m Urban Aerial Photos Index Tiles (2015-2016)

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

5327
96
Added
11 Sep 2017

This dataset was first added to LINZ Data Service on 11 Sep 2017.

Index Tiles ONLY, for actual orthophotos see layer Auckland 0.075m Urban Aerial Photos (2015-16)

Orthophotography over Auckland City taken in the flying season (summer period) 2015 -16.

Imagery was captured for the ‘Auckland Council’ by AAM NZ Limited, 6 Ossian St, NAPIER, New Zealand.

Data has subsequently been provided to LINZ and this comprises:
• 4,835 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 7.5cm pixel resolution (0.075m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is +/- 15 cm.

Layer ID 88105
Data type Vector polygon
Feature count 4835
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
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