Projections

This section describes the current official New Zealand projections as well as superceded New Zealand projections.

Current official projections

The official projections in New Zealand are in terms of the NZGD2000.

New Zealand Transverse Mercator 2000 (NZTM2000)

The NZTM2000 is the projection that will be used for New Zealand's future Topo50 1:50,000 and other small scale topographic mapping. more...

NZGD2000 meridional circuits

The Rules for Cadastral Survey require surveyors to carry out surveys in terms of one of 28 Transverse Mercator meridional circuits. more...

New Zealand offshore island projections

Transverse Mercator projections have limited longitudinal extents therefore separate projections have been defined for the Antipodes, Auckland, Bounty, Campbell, Chatham, Kermadec, Raoul and Snares Islands .more...

New Zealand Continental Shelf Lambert Conformal 2000 (NZCS2000)

Spatial data covering the New Zealand continental shelf can be represented using the NZCS2000 Lambert Conformal projection. more...

Darwin Glacier Lambert Conformal 2000 (DGLC2000)

Spatial data around the Darwin Glacier in the Ross Sea Region of Antarctica can be represented using the DGLC2000 Lambert Conformal projection that is in terms of the RSRGD2000. more...

Historic projections

New Zealand Map Grid (NZMG)

The NZMG is the NZGD1949 projection that has been used for 1:50,000 topographic mapping in New Zealand. It was replaced by the NZTM2000 in 2001. more...

Chatham Islands Transverse Mercator 1979 (CITM1979)

The CITM1979 is the CIGD1979 projection that has been used for 1:50,000 topographic mapping in the Chatham Islands. It was replaced by the CITM2000 in 2007. more...

North and South Island Yard Grids (NIYG, SIYG)

The NIYG and SIYG are the NZGD1949 projections that have been used for the 1:63,360 (inch-to-the-mile) NZMS1 topographic mapping from 1942. It was replaced by the NZMG in 1976. more...