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This dataset was last updated on LINZ Data Service on 24 Oct 2020.
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.
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.
Creative Commons Attribution 4.0 International
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 | 24 Oct 2020 |
| Revisions | 342 - Browse all revisions |
| Current revision | Imported on Oct. 23, 2020 from Postgres in RSRGD2000. |