World Data - Page 9

The BLF55-NZGD2000 grid enables the conversion of normal-orthometric heights from the Bluff 1955 local vertical datum directly to New Zealand Geodetic Datum 2000 (NZGD2000) ellipsoidal heights.

BLF55-NZGD2000 is published on a one arc-minute grid (approximately 1.8 kilometres) extending over the benchmarks that nominally define the extent of the Bluff 1955 vertical datum (168.2° E to 168.9° E, 46.3° S to 46.8° S).

The conversion value is represented by the attribute “delta”, in metres.

This grid is a combination of New Zealand Quasigeoid 2016 NZGeoid2016 and the BLF55-NZVD2016 height conversion grid. Where NZGeoid2016 is the reference surface for the New Zealand Vertical Datum 2016 (NZVD2016), while the BLF55-NZVD2016 grid models the difference between the Bluff 1955 vertical datum and NZVD2016 using the LINZ GPS-levelling marks.

More information on converting heights between vertical datums can be found on the LINZ website.

Any formed all weather route suitable for the passage of any vehicle.

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

This layer is a component of the Topo50 map series. The Topo50 map series provides topographic mapping for New Zealand and it's offshore dependancies, at 1:50,000.
For some small islands the printed map scale is 1:25,000. Although presented at 1:25,000 this layer, for all intents and purposes, forms part of the Topo50 map series.

Further information on Topo50:
www.linz.govt.nz/topography/topo-maps/topo50

Index Tiles ONLY, for actual orthophotos see layer Banks Peninsula 0.075m Urban Aerial Photos (2019-2020)

Orthophotography within the Canterbury Region taken in the flying seasons (summer periods) 2019-2020. Coverage is of the Canterbury region covering part of the Banks Peninsula area.

Imagery was captured for Environment Canterbury by Aerial Surveys Ltd, Unit A1, 8 Saturn Place, Albany ,0632, New Zealand.

Data comprises:
•1779 ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:500 tile layout
•Tile layout in NZTM projection containing relevant information.

The supplied imagery is in terms of New Zealand Transverse Mercator (NZTM) map projection. Please refer to the index tiles layer for specific details, naming conventions, etc.

Imagery supplied as 7.5 cm pixel resolution (0.075 m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is ±0.15 m @ 68% confidence level.

Index Tiles ONLY, for actual orthophotos see layer Palmerston North 0.125m Urban Aerial Photos (2018)

Orthophotography of Palmerston North City taken in the flying seasons (summer period) 2018-2019. Coverage encompassed the urban areas in the Manawatu and Palmerston North City Districts totalling approximately 339 km2.

Imagery was captured for Palmerston North City Council by Aerial Surveys Ltd, Unit A1, 8 Saturn Place, Albany,0632, New Zealand.

Data comprises:
• 1,074 ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:1,000 tile layout
• Tile layout in NZTM projection containing relevant information.

The supplied imagery is in terms of New Zealand Transverse Mercator (NZTM) map projection. Please refer to the supplied tile layout shape file for specific details, naming conventions, etc.

Imagery supplied as 12.5cm pixel resolution (0.125m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is ±0.2 m @ 95% confidence level.

Area of dry or relatively dry land surrounded by water or low wetland

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

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 relatively permanent walled and roofed construction.

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

This layer is a component of the Topo50 map series. The Topo50 map series provides topographic mapping for New Zealand and it's offshore dependancies, at 1:50,000.
For some small islands the printed map scale is 1:25,000. Although presented at 1:25,000 this layer, for all intents and purposes, forms part of the Topo50 map series.

Further information on Topo50:
www.linz.govt.nz/topography/topo-maps/topo50

A place for burying the dead.

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

This layer is a component of the Topo50 map series. The Topo50 map series provides topographic mapping for New Zealand and it's offshore dependancies, at 1:50,000.
For some small islands the printed map scale is 1:25,000. Although presented at 1:25,000 this layer, for all intents and purposes, forms part of the Topo50 map series.

Further information on Topo50:
www.linz.govt.nz/topography/topo-maps/topo50

Sand: crushed rock, shells etc smaller than 2mm in size

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

This layer is a component of the Topo50 map series. The Topo50 map series provides topographic mapping for New Zealand and it's offshore dependancies, at 1:50,000.
For some small islands the printed map scale is 1:25,000. Although presented at 1:25,000 this layer, for all intents and purposes, forms part of the Topo50 map series.

Further information on Topo50:
www.linz.govt.nz/topography/topo-maps/topo50

A structure used for the storage of fluids

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

This layer is a component of the Topo50 map series. The Topo50 map series provides topographic mapping for New Zealand and it's offshore dependancies, at 1:50,000.
For some small islands the printed map scale is 1:25,000. Although presented at 1:25,000 this layer, for all intents and purposes, forms part of the Topo50 map series.

Further information on Topo50:
www.linz.govt.nz/topography/topo-maps/topo50

In addition to contour lines, relief shading helps visualise the terrain. Hills and valleys are shaded as if they were illuminated from the north-west.

Relief layers were generated for each sheet, and specifically for use in the Topo50 map series. There may be subtle differences in the relief shading of adjacent map sheets. Where no contour information exists, relief shading has not been produced.

The Topo50 map series provides topographic mapping for the New Zealand mainland, the Chatham Islands, and offshore islands at 1:50,000 scale (some of the islands at 1:25,000).

Snares Islands / Tini Heke data and map, although captured and presented at 1:25,000 scale are, to all intents and purposes, part of the Topo50 series.

Further information on Topo50: www.linz.govt.nz/topography/topo-maps/topo50