Topographic 1:50,000 Map Series

Why the topographic map series is a priority

Topographic information shows the natural and man-made features of the land represented to scale and provided on maps. It is important for emergency services, land management, defence planning and recreational use. LINZ is New Zealand's national mapping organisation, responsible for providing national mapping at 1:50,000 and broader scales. LINZ makes its topographic data available via the Internet and in printed form through retailers.

Topographic mapping is underpinned by the geodetic reference system, which provides the underlying spatial framework for New Zealand. Currently there are two used for topographic mapping in New Zealand:

  • NZGD49
  • NZGD2000.

There is a 200-metre difference between the two, a difference that is insignificant in some applications, but potentially life-threatening in others. Wider adoption of the new reference system NZGD2000 is constrained by the lack of an NZTM-based map series.

As a result, LINZ is developing a new 1:50,000 topographic map series to replace the current one. The map series is planned for release during 2009, with much of the underlying development occurring in the coming year. It is based on the NZTM2000 map projection and will see the redevelopment and provision of NZTM data used and relied upon by primary customers. This will be followed by the printing, launch and distribution of the new paper maps.

Contribution to end outcomes

Availability of land information.

Contribution to intermediate outcomes

Convenient access to integrated land information which:

  • better meets the needs of our stakeholders
  • ensures consistency of information, and
  • provides users with information that is of higher definition and quality.

Activities

LINZ will continue the current software development work during 2007/08, with the printing, launch and distribution of the new paper maps planned for 2008 and 2009.

 

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