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  • Added 11 Aug 2011
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NZSoSDEM v1.0 is a Digital Elevation Model (DEM) covering the whole of New Zealand at a spatial resolution of 15m, created by the School of Surveying by interpolating LINZ topographic vector data.

The DEM was created as a series of 30 maps which extent correspond exactly with the LINZ Topo250 topographic map series. Smaller regions can thus be obtained individually but also fit together seamlessly to create a full countrywide DEM.

The accuracy of this product was comprehensively assessed using a statistically sound selection of 3791 check points throughout the country. The comparison of results with other available country-wide DEM demonstrate an improvement of NZDEM_SoS_v1.0 in terms of quality that comes in addition with a finer spatial resolution.

A full description of the interpolation/assessment process can be found in the attached documentation: Columbus, J.; Sirguey, P. & Tenzer, R. (2011), 'A free, fully assessed 15-m DEM for New Zealand', Survey Quarterly 66, 16-19.

License

Creative Commons Attribution-Share Alike 3.0

You may use this work for commercial purposes.

You must attribute the creator in your own works.

You must provide modified versions of this work under the same license.

Attachments

1. Columbus11 1.05 MB pdf

Information

CategoryContours & Terrain > Hillshades & Terrain
TagsNew Zealand, NZDEM, terrain, DEM, surveying
RegionsNorthland Region

Technical Details

Layer ID 3729
Data type Grid
Resolution 15.000m
Services Raster Query API, data.govt.nz Atom Feed

History

Added 11 Aug 2011
Last updated 19 Jul 2011
Revisions 1 - Browse all revisions
Current revision Imported on Aug. 11, 2011 from GeoTIFF in NZGD2000 / New Zealand Transverse Mercator 2000.
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