Antarctic Ant50k Maps

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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.

3626
288
Updated
08 Dec 2014

This dataset was last updated on LINZ Data Service on 08 Dec 2014.

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 51109
Data type Image/Raster
Resolution 4.233m
Services Web Map Service (WMS), Catalog Service (CS-W), data.govt.nz Atom Feed

Antarctic Geodetic Marks

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

1741
60
Updated
08 Dec 2018

This dataset was last updated on LINZ Data Service on 08 Dec 2018.

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

Unsurveyed 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.

1540
23
Updated
12 Jul 2018

This dataset was last updated on LINZ Data Service on 12 Jul 2018.

An area for which no bathymetric survey information is available.

S-57 Object Class: Unsurveyed area

S-57 Acronym: UNSARE

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 51610
Data type Vector multipolygon
Feature count 6
ElevationZ coordinates
Primary key fidn
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Ross Dependency Contours (ANT, 1:50k)

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Creative Commons Attribution 4.0 International

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1463
90
Updated
04 Dec 2014

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

An imaginary line that connects points of equal height value eg the elevation of the land surface above or below a vertical datum, in this case of LINZ topographic mapping, this is Mean Sea Level.

Data Dictionary for contour: apps.linz.govt.nz/topo-data-dictionary/index.aspx?...

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 51155
Data type Vector linestring
Feature count 12670
Elevation Z (elevation)
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZ Ross Dependency ANT 50 Map Sheet

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

1438
86
Updated
04 Dec 2014

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

Polygon for each Topo50 map sheet in the Ross Dependency, Antarctic holding extents of each sheet, it's sheet code, name, edition, and revision statement. This is the same information that is printed on each ANTTopo50 map.

Layer ID 51197
Data type Vector polygon
Feature count 108
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

You may use this work for commercial purposes.

You must attribute the creator in your own works.

1460
38
Updated
08 Dec 2018

This dataset was last updated on LINZ Data Service on 08 Dec 2018.

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

NZ Ross Dependency Descriptive Texts (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.

1439
49
Updated
04 Dec 2014

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

Descriptive text; object used to hold text.

Data Dictionary for descriptive_text: apps.linz.govt.nz/topo-data-dictionary/index.aspx?...

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 51188
Data type Vector point
Feature count 103
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.

1366
121
Updated
27 Jun 2016

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

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

Ice area polygon (Hydro, 1:90k - 1:350k)

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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.

1455
31
Updated
15 Jul 2018

This dataset was last updated on LINZ Data Service on 15 Jul 2018.

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 1:90,000 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 52056
Data type Vector multipolygon
Feature count 74
ElevationZ coordinates
Primary key fidn
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Magnetic variation polyline (Hydro, 1:90k - 1:350k)

Licence

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

1443
26
Updated
15 Jul 2018

This dataset was last updated on LINZ Data Service on 15 Jul 2018.

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