LINZ Data Service Update June 2017

15 June 2017

A LINZ Data Service (LDS) update on a new LDS platform, Antarctic names, removal of address and road layers, precise national elevation data based on LiDAR, NZGB partnership planned with Alexander Turnbull Library, your data use and the Crown Property Disposal Portal for iwi

We have reached 50TB of data downloaded from the LDS! This has exceeded our projections and illustrates the increasing demand for open data. We are actively looking at better understanding our users so please let us know if you have any feedback or questions: linzdataservice@linz.govt.nz. This also involves an annual customer satisfaction survey which will be sent to a random sample of LDS users. This is a statutory regulation; the information we receive from the survey will be anonymised and reported directly to the Land Information NZ Minister. If you are sent a request to complete the survey we would greatly appreciate hearing your views on LINZ and the LDS
                                                                                  
We can’t put everything in this update so other news on LINZ and the LDS is available on Twitter feeds for the LDS and the Geodetic team, the LINZ Facebook page as well as our website. Are you using our data and think we should be following you? Use the @LINZLDS handle and let us know!

New LDS platform for more data and faster performance

We’re working to move the LINZ Data Service to a new platform, which will allow us to publish even more data than we do now and update it more quickly.

The new platform will be hosted by Koordinates, a Wellington-based service provider and once it’s in place, you’ll need to complete a quick one-time sign up process for a Koordinates ID. This is a single sign-on for all sites on the Koordinates platform, meaning you’ll also have easier access to open data hosted by agencies like Stats NZ, Environment Canterbury and NZ Defence Force.

As part of this process we’ll also ask you to provide your occupation and industry. This helps us better understand the way the LINZ Data Service is used so we can better meet your needs.

We’re working towards this now and will be in touch with a further update on the timing for this change over the coming weeks.

Antarctic names

The New Zealand Geographic Board has improved the positions of geographic names from their old approximate coordinates so that they are now located on the actual features named. Many of the old positions were established during the very early explorations and from small scale topographic mapping carried out in the 1960s.

The NZGB has now produced coordinates reflecting where the features actually are. These go beyond New Zealand and there are now 700+ improved coordinates for Antarctic names. This includes around 300 new entries of Antarctic names. In the near future another 100 coordinate updates will follow. This project was initiated by nations contributing to a Composite Gazetteer of Antarctica, recognising the need for better positions to support operational science programmes.

Refer to the NZGB Gazetteer

Removal of address and road layers

On 21 November all data in the Address and Roads layers source changed from Landonline to the new Address Information Management System (AIMS) and Roads systems. We will be deprecating the following layers on the LINZ Data Service as of the  30th June 2017 (This was originally communicated on  31 May 2017):

The above layers will be replaced by:

What’s different about the new AIMS and Road datasets?

The new AIMS and Roads datasets include:

  • address and road information that has been broken out into individual components
  • changes to the data structure (new fields will be updated over time)
  • changes to some field names
  • UTF-8 format to support macrons - ASCII fields are still available in the NZ Street Address, NZ Roads (Addressing) and NZ Roads Subsections (Addressing) layers
  • address points can be stacked (previously ranged or in a grid formation)
  • a road name labelling field with common abbreviations
  • road geometries modified to point in the direction of increasing address numbers.

The road centreline ID and street address Static and Unique Feature Identifiers (SUFI) from the existing datasets have been carried across to the new datasets. More detailed information about the changes can be found in our data dictionaries; AIMS Data Dictionary and ROADS Data Dictionary.

Precise national elevation data based on LiDAR

We are working to improve the national elevation data from 20m contours to LiDAR based digital elevation models. We have recently added over 4,000 square kilometres of high accuracy digital elevation models from Auckland, Bay of Plenty, and Canterbury. These datasets include Auckland City, Christchurch, and Tauranga and are suitable for applications such as flood risk analysis and urban planning.

The bare earth digital elevation models (DEMs) and highest point digital surface models (DSMs) are provided as 1m grids consistently referenced to the NZVD2016 vertical datum, and are based on high accuracy LiDAR captured by local government. The classified point cloud data is available from OpenTopography. Stay tuned for future datasets to be added including the entire Auckland, Northland, and Wellington regions, portions of Nelson and Tasman districts, and portions of the Waikato coast.

NZGB partnership planned with Alexander Turnbull Library

In March/April 2017 the Alexander Turnbull Library requested a link to the NZGB Gazetteer’s unique ‘feature id’ to enable its users to access via its web feature services associated fields e.g. coordinates and names. The purpose is to add them to one of its many finding aids to assist users to discover many historic unpublished collections.

Alexander Turnbull Library is keen to partner with the NZGB on its long term goal to create a data service for this unique collection.

On 6 April 2017 the NZGB Secretariat demonstrated to Alexander Turnbull Library staff the online NZGB Gazetteer and the three NZGB layers in the LINZ Data Service.  More on this will be reported in future LDS Newsletters.

What do you use data for?

The LDS now has over 35,000 registered users, the need for data is growing and we want to continue to provide a world class service. We will be sending out a survey to some of our users to find out more about how you use our data. By taking the time to answer these important questions you are directly impacting the LDS by letting us know how we can meet your needs. If you would like to let us know any interesting user stories or be featured in the newsletter or Twitter please contact us at linzdataservice@linz.govt.nz

Crown Property Disposal Portal for Iwi

Land Information New Zealand has developed a free online system that makes it easier for iwi to decide whether to invest in Crown properties offered as part of Treaty of Waitangi settlements. The tool is called the ‘Crown Property Disposals Portal’.

Through the Portal, iwi can view detailed property information, including photos of the property, maps and locations, land area, any covenants or reports for the property, and contact details for the Crown agency.

It allows iwi to have more access to information about a property at the time a property is entered into the disposal process. This means more time for iwi to carry out research and decide whether to buy a property. They can also respond through the Portal, rather than by post.

Read more information about the Disposal Portal

Media enquiries

Email: media@linz.govt.nz or phone: 027 566 5251