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NZ Geodetic Vertical Marks

  • Added 22 May 2011
  • Updated 23 Oct 2021
  • 22499 Views
  • 2153 Downloads

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 a 3D New Zealand official geodetic datum. The horizontal positions of marks are provided for approximate location purposes only .

This dataset only contains marks that are within the New Zealand mainland and offshore islands. The height data for these marks have been generated using precise levelling from datum tide gauges, or has been acquired by 3rd party sources either as levelling observations or direct heights.

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 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

Information

TagsNew Zealand
RegionsNew Zealand
MetadataISO 19115/19139, Dublin Core

Technical Details

Layer ID 50784
Data type Vector point
Feature count 106295
Primary key id
Attributes id, nod_id, geodetic_code, current_mark_name, description, mark_type, beacon_type, mark_condition, order, land_district, normal_orthometric_height, coordinate_system,
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

History

Added22 May 2011
Last updated23 Oct 2021
Revisions 522 - Browse all revisions
Current revision Imported on Oct. 22, 2021 in NZGD2000.
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