15.000mNZSoSDEM 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.
Creative Commons Attribution-Share Alike 3.0
| Must credit creator |
| Must share modifications |
| Layer ID: | 3756 |
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| Data type: | Grid |
| Resolution: | 15.000m |
| Added: | 11 Aug 2011 |
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| Revisions: | 1 |
| Current revision: | Imported on Nov. 19, 2011 from TIFF in NZGD2000 / New Zealand Transverse Mercator 2000. |
| Views: | 181 |
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| Downloads: | 89 |
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