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Dunedin-Bluff 1960 to NZGD2000 Conversion

  • Added 25 Jul 2016
  • Updated 19 Apr 2018
  • 11625 Views
  • 16 Downloads

The DBL60-NZGD2000 grid enables the conversion of normal-orthometric heights from the Dunedin-Bluff 1960 local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights.

DBL60-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the Dunedin-Bluff 1960 vertical datum (167.4° E to 169.9° E, 45.0° S to 46.7° S).

The conversion value is represented by the attribute “delta”, in metres.

This grid is a combination of New Zealand Quasigeoid 2016 NZGeoid2016 and the DBL60-NZVD2016 height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the DBL60-NZVD2016 grid models the difference between the Dunedin-Bluff 1960 vertical datum and NZVD2016 using the LINZ GPS-levelling marks.

More information on converting heights between vertical datums can be found on the LINZ website.

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

TagsLAND-Cadastre, LAND-Geodesy, LAND-Topography, New Zealand
RegionsOtago Region, Southland Region
MetadataISO 19115/19139, Dublin Core

Technical Details

Layer ID 53425
Data type Vector point
Feature count 15553
Attributes longitude, latitude, delta
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

History

Added25 Jul 2016
Last updated2 Aug 2016
Revisions 5 - Browse all revisions
Current revision Imported on Aug. 2, 2016 in NZGD2000.
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