Antarctic Geodetic Vertical Marks

Licence

Creative Commons Attribution 3.0 New Zealand

You may use this work for commercial purposes.

You must attribute the creator in your own works.

1102
36
Updated
15 Sep 2017

This dataset was last updated on LINZ Data Service on 15 Sep 2017.

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.

License

Creative Commons Attribution 3.0 New Zealand

You may use this work for commercial purposes.

You must attribute the creator in your own works.

Information
Category Geodetic
Tags New Zealand
Regions Antarctica
Metadata ISO 19115/19139, Dublin Core
Technical Details
Layer ID 50788
Data type Vector point
Feature count 279
Primary key id
Attributes id, nod_id, geodetic_code, current_mark_name, description, mark_type, beacon_type, mark_condition, order, normal_orthometric_height, coordinate_system,
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
History
Added 22 May 2011
Last updated 15 Sep 2017
Revisions 178 - Browse all revisions
Current revision Imported on Sept. 16, 2017 from Postgres in RSRGD2000.