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This release (59) comprises selected updates to 28 Topo50 NZ sheets and 1 Topo250 sheet.

SNAP (Survey Network Adjustment Package) is a specialist software programme that is used when working with large or complex survey networks. It can perform a range of tasks including adjusting geodetic control marks, transforming between coordinate systems, and applying deformation models. This page includes guidance and examples to help people use this software.

The most accurate method for transforming coordinates between New Zealand Geodetic Datum 1949 (NZGD1949) and New Zealand Geodetic Datum 2000 (NZGD2000) is to use a distortion grid. On this page you can download the distortion grid file and find other information available regarding this horizontal grid transformation.

Proposed, assigned, altered and discontinued undersea feature names, an assigned Antarctic name, validated, discontinued and amended Crown Protected Area names, and new and altered geographic feature names.

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Assigned and altered geographic feature and Crown protected area names, a discontinued Crown protected area name, and corrected geographic feature names.

Coordinated LiDAR procurement maximises national benefit.

Digital elevation models and point clouds are free to download or stream as Open Data. The data can also be previewed as 3D hillshade visualisation through the LINZ Data Service and LINZ Basemaps.