NZ Topo 500 Data Layers

This provides a polygon coastline and islands layer which is based on the Topo500 products. It is a combination of the following layers:

• NZ Coastlines (Topo, 1:500k)
• NZ Island Polygons (Topo, 1:500k)

This topographic coastline is the line forming the boundary between the land and sea, defined by mean high water.

Islands from the NZ Island Polygons layer that lie within the NZ Coastline area (i.e. islands in lakes, rivers and estuaries) have been removed.

The GIS workflow to create the layer is:

1. NZ Coastlines were converted from a polyline to a polygon using a polyline to polygon tool.
2. The resulting coastal polygon was then used as an input into an erase tool and run against the NZ Island Polygon layer to remove all islands lying within the NZ Mainland and Stewart Island.

For more detailed description of each layer refer to the layer urls above.

A barrier constructed across a watercourse to control the flow or raise the level of water

Data Dictionary for dam_cl: docs.topo.linz.govt.nz/data-dictionary/tdd-class-d...

This layer is a component of the Topo500 data. The Topo500 map series will, when it is created, provide updated topographic mapping for the New Zealand mainland at 1:500,000 scale.

Geographic name holds the proper noun of certain objects within the Topo databases. Geographic_name does not apply to roads, railway lines, or descriptive text - eg 'Brunner Mine' would be a Geographic_name but 'mine disused' is held in the descriptive_text feature

Data Dictionary for geographic_name: docs.topo.linz.govt.nz/data-dictionary/tdd-class-g...

This layer is a component of the Topo500 data. The Topo500 map series will, when it is created, provide updated topographic mapping for the New Zealand mainland at 1:500,000 scale.

A facility where aircraft can take off and land; usually consists of hard-surfaced landing strips, a control tower, hangars and accommodation for passengers and cargo

Data Dictionary for airport_pnt: docs.topo.linz.govt.nz/data-dictionary/tdd-class-a...

This layer is a component of the Topo500 data. The Topo500 map series will, when it is created, provide updated topographic mapping for the New Zealand mainland at 1:500,000 scale.

A tract of land covered by trees not native to New Zealand

Data Dictionary for exotic_poly: docs.topo.linz.govt.nz/data-dictionary/tdd-class-e...

This layer is a component of the Topo500 data. The Topo500 map series will, when it is created, provide updated topographic mapping for the New Zealand mainland at 1:500,000 scale.

A mill or other machine that runs on the energy generated by a wheel of adjustable blades or flats rotated by the wind

Data Dictionary for windmill_pnt: docs.topo.linz.govt.nz/data-dictionary/tdd-class-w...

This layer is a component of the Topo500 data. The Topo500 map series will, when it is created, provide updated topographic mapping for the New Zealand mainland at 1:500,000 scale.

Coastal rocks; rocks between high and low tide

Data Dictionary for rock_poly: docs.topo.linz.govt.nz/data-dictionary/tdd-class-r...

This layer is a component of the Topo500 data. The Topo500 map series will, when it is created, provide updated topographic mapping for the New Zealand mainland at 1:500,000 scale.

An isolated rock or rock formation between high and low tides.

Data Dictionary for rock_pnt: docs.topo.linz.govt.nz/data-dictionary/tdd-class-r...

This layer is a component of the Topo500 data. The Topo500 map series will, when it is created, provide updated topographic mapping for the New Zealand mainland at 1:500,000 scale.

A natural, flowing body of water emptying into an ocean, lake or other body of water and usually fed along it's course by converging tributaries.

Data Dictionary for river_poly: docs.topo.linz.govt.nz/data-dictionary/tdd-class-r...

This layer is a component of the Topo500 data. The Topo500 map series will, when it is created, provide updated topographic mapping for the New Zealand mainland at 1:500,000 scale.

A natural, flowing body of water emptying into an ocean, lake or other body of water and usually fed along it's course by converging tributaries.

Data Dictionary for river_cl: docs.topo.linz.govt.nz/data-dictionary/tdd-class-r...

This layer is a component of the Topo500 data. The Topo500 map series will, when it is created, provide updated topographic mapping for the New Zealand mainland at 1:500,000 scale.