MB2014_V1_00 is the generalised meshblock pattern for 2014as defined by Statistics New Zealand as at 1 January 2014.Statistics New Zealand maintains an annual meshblock pattern for collecting and producing statistical data. This allows data to be compared over time. A meshblock is the smallest geographic unit for which statistical data is collected and processed by Statistics New Zealand. A meshblock is defined by a geographic area, which can vary in size from part of a city block to a large area of rural land. Each meshblock borders on another to form a network covering all of New Zealand, including coasts and inlets and extending out to the 200-mile economic zone. Meshblocks are added together to build up larger geographic areas such as area units and urban areas. They are also used to define electoral districts, territorial authorities, and regional councils. There are two ways of amending meshblock boundaries. Splitting is subdividing a meshblock into two or more meshblocks. Nudging is shifting a boundary to a more appropriate position. Reasons for splits and nudges include:to accommodate changes to local government boundaries, which are required by the Local Government Act 2002 to follow meshblocks for electoral purposes to accommodate changes to parliamentary electoral boundaries, following each Electoral Representation Commission review after each five-yearly Census of Population and Dwellingsto make changes to statistical boundaries such as area units and urban areasto enable changes to census collection districts to improve the size balance of meshblocks in areas where there has been population growthto separate land and water –eg mainland, islands, inlets, and oceanic are defined separately to accommodate requests from other users of the meshblock pattern eg the NZ Police for their station, area, and district boundaries.Meshblock numbering process until 2014 (MB 2014)Meshblocks were allocated a unique seven-digit number. The first five digits were unique, and referred to the original 1976 meshblock code. The two end numbers refer to sequential meshblock splits to the original meshblock. When a meshblock is split the final two digits of the original meshblock number are changed. Exceptions to this rule are a small number of meshblocks where no more numbers in the sequence are available. Accordingly there were some meshblocks in Auckland and Tauranga City starting with 32xxxxx. Statistics New Zealand maintains a concordance file to ensure that boundaries relating to earlier meshblock patterns can also be produced.The digital geographic boundaries are defined by Statistics New Zealand. They are maintained on behalf of Statistics New Zealand by Land Information New Zealand in Landonline using ArcInfo. Meshblocks cover the land area of New Zealand, the water area to the 12-mile limit, the Chatham Islands, Kermadec Islands, sub-Antarctic islands, off-shore oil rigs, and Ross Dependency. The following 16 meshblocks are not held in digitised form.MeshblockLocation (area unit name)0016901Oceanic-Kermadec Islands0016902Kermadec Islands1588000Oil Rig-Taranaki3166401Oceanic-Campbell Island3166402Campbell Island3166600Oil Rig-Southland3166710Oceanic-Auckland Islands3166711Auckland Islands3195000Ross Dependency3196001200 Mile Economic Zone3196002Oceanic-Bounty Islands3196003Bounty Islands3196004Oceanic-Snares Islands3196005Snares Islands3196006Oceanic-Antipodes Islands3196007Antipodes IslandsMeshblock boundaries generally follow road centre-lines, cadastral property boundaries or topographical features (eg rivers). Expanses of water in the form of lakes and inlets are defined separately from land. The annual pattern of digital boundaries is used for the full calendar year from 1 January. YearMeshblock Total of NZDigitised Meshblock Total19903488234876199135152 (Census)3514619923516335157199335370353641994355843557819953623536228199636808 (Census)3680119973680836801199836829368221999371543714720003738337367200138366 (Census)3835020023837838362200338685386692004393133929720053981939803200641392 (Census )41376200741512414962008429824296620094394043924201046252462362011466274661120124663246616201346637 (Census)4662120144664346627As at 1stJuly 2007, Digital Geographic Boundary data became freely available.
The digital meshblock boundaries are stored and maintained by Land Information New Zealand within their Landonline database, and ArcInfo Suite. Statistics New Zealand maintains the meshblock pattern by checking the cadastral pattern against the meshblock pattern via LINZ’s Landonline and Terralink International Limited’s licensed software, Terraview platinum. Non-alignment of meshblock and cadastral boundaries are one of a number of reasons for meshblock boundary adjustments. Other reasons include requests from local authorities, Local Government Commission, Electoral Representation Commission and to make Census of Population and Dwellings enumeration processes easier. Once all changes are prepared, Statistics NZ then passes the requests for changes to the meshblock pattern onto LINZ for the electronic changes to take place. From the generalised meshblock pattern, higher geographies were dissolved using the dissolve tool in the Arc GIS suite to create multiple output datasets.
These conditions of supply apply to all users of Statistics NZ digital boundaries effective 1 July 2007. Permitted uses You must acknowledge Statistics NZ as the source of the boundaries. Uses not permitted You must not change the accuracy of the boundaries and supply them to another party. Liability While care has been taken to compile these boundary coordinates, Statistics NZ gives no warranty that the data supplied is free from error. Statistics NZ will not be liable for any loss suffered by the use, directly or indirectly, of this information.