Data Details & Use

The topographic data displayed on this website has been cartographically generalised, and is intended for published maps at a scale of 1:50,000.

You need to consider this when using at any other scale. You should consider its application in relation to your requirements. For scale, generalisation and accuracy specifications of the topographic data in NZTopoOnline, consult the NZTopo Data Dictionary.

Technical information

Some technical information about the data in NZTopoOnline:

Number of features

Approximately 7,500,000 real world objects make up the 280 feature types that populate this database.

Source data

NZTopo base data was scanned from the colour separations used in the production of the Topographic Map 260 Series 1:50,000 scale.

Completeness

Spatial and attribute data capture is complete. Data currency is being maintained on a 260 sheet basis from digital orthophotography.

Accuracy

NZTopo data complies with the following statement of planimetric (x,y) accuracy - "90 percent of well-defined points are within +/-22 metres".

NZTopo data complies with the statement of vertical (z) accuracy - "90 percent of well-defined points are within +/-10 metres".