Antarctic Geodetic Marks

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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.

20324
89
Updated
06 Aug 2022

This dataset was last updated on LINZ Data Service on 06 Aug 2022.

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 473
Primary key id
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Antarctic Geodetic Vertical Marks

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

21431
58
Updated
06 Aug 2022

This dataset was last updated on LINZ Data Service on 06 Aug 2022.

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

Ice area polygon (Hydro, 1:22k - 1:90k)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

15586
83
Updated
10 Mar 2022

This dataset was last updated on LINZ Data Service on 10 Mar 2022.

An area of ice over land or water.

S-57 Object Class: Ice area

S-57 Acronym: ICEARE

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 52058
Data type Vector polygon
Feature count 7
Primary key fidn
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Chart NZ 14902 McMurdo Station and Scott Base

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

21530
225
Updated
27 Feb 2020

This dataset was last updated on LINZ Data Service on 27 Feb 2020.

Raster chart image of: NZ 14902 McMurdo Station and Scott Base

This data was compiled for the use at the following scale: 1:5000

File reference: NZ1490201

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 51358
Data type Image/Raster
Resolution About 0.211m
Services Raster Tiles Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

Magnetic variation polyline (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.

11827
98
Updated
28 Jan 2020

This dataset was last updated on LINZ Data Service on 28 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 1:90,000 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 52057
Data type Vector multilinestring
Feature count 9
DimensionsZ values
Primary key fidn
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Chart NZ 14900 Ross Sea

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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.

22063
208
Updated
27 Jun 2016

This dataset was last updated on LINZ Data Service on 27 Jun 2016.

Raster chart image of: NZ 14900 Ross Sea

This data was compiled for the use at the following scale: 1:2000000

File reference: NZ1490001

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 51356
Data type Image/Raster
Resolution About 61.169m
Services Raster Tiles Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Ross Dependency Glacial Lake Polygons (ANT, 1:50k)

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

19183
90
Updated
04 Dec 2014

This dataset was last updated on LINZ Data Service on 04 Dec 2014.

Glacial lake boundary; a lake fed by meltwater, or forming in glacier ice because of differential melting, or one confined by a morainal dam, or held in a bedrock basin produced by glacial erosion.

Data Dictionary for glacial_lake_poly: docs.topo.linz.govt.nz/data-dictionary/tdd-class-g...

This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

Layer ID 51162
Data type Vector polygon
Feature count 625
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Ross Dependency Mast Points (ANT, 1:50k)

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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.

18757
66
Updated
04 Dec 2014

This dataset was last updated on LINZ Data Service on 04 Dec 2014.

A vertical pole serving as an antenna or antenna support.

Data Dictionary for mast_pnt: docs.topo.linz.govt.nz/data-dictionary/tdd-class-m...

This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

Layer ID 51170
Data type Vector point
Feature count 5
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Antarctic Ant50k Gridless Maps

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

26183
55
Updated
02 Jul 2015

This dataset was last updated on LINZ Data Service on 02 Jul 2015.

The Ant50 map series provides topographic mapping within the Ross Dependency, Antarctica

Digital images of the maps are also publicly available from www.linz.govt.nz/topography/topo-maps/antarctic-to...

Georeferenced raster digital images are provided at a resolution of 300 DPI. Georeferencing allows adjacent maps to be accurately and automatically aligned within GIS systems.

For more information, and a description of the georeferencing keys:
www.linz.govt.nz/topography/topo-maps/topo50/digit...

Layer ID 52407
Data type Image/Raster
Resolution 4.000m
Services Raster Tiles Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Ross Dependency Ski Tow Centrelines (ANT, 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.

14827
65
Updated
04 Dec 2014

This dataset was last updated on LINZ Data Service on 04 Dec 2014.

a conveyor system in which carrier units run on wire or rope cables strung between supports for transporting skiers up the slope - the skier remains in contact with the ground whilst being towed up the slope

Data Dictionary for ski_tow_cl: docs.topo.linz.govt.nz/data-dictionary/tdd-class-s...

This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

Layer ID 51187
Data type Vector linestring
Feature count 1
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
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