December 2014 Topographic Data Release Notes

This release comprises 61 ‘HighVis’* and 22 selected updates; a total of 83 Topo50 sheets updated.

*HighVis (high visibility approach) - ie where they are present, new roads (and road names), backcountry tracks & huts, schools and transmission line features are checked and updated. Changes to gazetted geographic names are also made. For the remaining features, each sheet is scanned, and only features that stand out as being significantly different from the previous edition are updated. 

On CA11 Aspiring Pass, Quarterdeck Pass text has been moved to be closer to the actual feature and BX24 Christchurch has had the earthquake affected areas (CBD and urban) adjusted.

Many of the updates in the central North Island comprise of changes from forestry to lifestyle blocks, and include the mapping of several power facilities.

Topo50 Gridless released

In the last release “Gridless” versions of the raster map images of Topo250, Tokelau, Niue and Cook Islands raster map layers were published; Topo50 gridless versions have now also been generated and published on the LINZ Data Service website.

Schema changes

Change to attributes in the Topo50 Road Centreline layer

The Topo50 Road Centreline layer can be linked to the NZ Road Centre Line (Electoral) layer via the new rna_sufi attribute.

The new rna_sufi attribute provides a new set of ID values and replaces the old name_id attribute.  A CSV file that maps the link between the old and new ID values is provided on the LINZ Data Service.

Topo50 Feature ID’s added to the LINZ Data Service (LDS) Topo50 data

A new attribute containing a Topo50 Feature ID, t50_fid, on Topo50 data downloaded from the LDS. The Topo50 Feature ID is not available from data downloaded from the Map Chooser.

The Topo50 Feature ID is a unique identifier for use on Topo50 data, but is not a universal ID.  The intention is to manage Topo50 Feature ID’s as persistent, however this is not guaranteed and there will be instances where what appears to be a minor change to a feature may result in a new Topo50 Feature ID being assigned.

The LDS changeset service will soon include Topo50 data.

Re-blocking of the Topo50 data

To enable more agile updating within LINZ, Topo50 data has been tiled to the Topo50 map sheet layout. Previously all features except contours were tiled to the Topo250 map sheets; Topo50 contours have always been tiled to Topo50 map sheets.

This change will not be highly visible to LDS users as prior to loading onto the LDS an edge-matching process has been run to re-join all line and polygon features.

However the process has identified a number of edge-match issues which are planned to be corrected, where possible, in the next few data releases.

As point features are not merged across map sheets, Geographic Name point features representing an area crossing a map sheet edge may be depicted with multiple points with different ID’s.

LDS Topo50 line and polygon features that have been joined across map sheet edges have been assigned with a Topo50 Feature ID generated from a sequence above 100,000,000.

Topographic Data Dictionary changes

Nil; however a future update is proposed to include documentation of the Topo50 Feature ID, the new attribute rna_sufi, and other minor changes.

Details regarding the entire history of changes are available.

Topo50 Series  

Sheet

Sheet Name

Version Number

Description of changes

Full

Maintenance

 

 

 

nil

 

 

 

High Vis

 

 

 

BD37

Tauranga

1.03

Updates to roads, f/track, v/tracks, schools, large buildings,  4 new geographic names.

BD38

Maketu

2.01

Updates to roads

BD39pt

Matata

1.01

Updates to roads, f/track, f/bridges, schools, airstrips, campsite

BD40pt

Moutohora Island

1.01

Updates to roads, f/tracks

BD42

Te Kaha

2.01

Updates to roads

BD43

Raukokore

1.01

Updates to roads, exotic forest, buildings

BD44

Potaka

1.01

Updates to roads, v/track, schools, airstrips, exotic forest

BD45

East Cape

1.01

Updates to roads, f/tracks, buildings, schools

BE33*

Pirongia

1.02

Updates to roads, tracks, buildings, residential area, exotic forest, campsites, schools

BE34

Kihikihi

1.01

Updates to roads, tracks, buildings, exotic forest, schools, Sanctuary Mountain

BE37

Rotorua

1.03

Updates to roads, tracks, buildings, exotic forest, 3 new geographic names

BE39

Edgecumbe

1.02

Updates to roads, f/track, f/bridges, schools, airstrips, campsite

BE40

Whakatane

1.01

Updates to roads, f/track, schools, campsite, exotic forest. 2 new geographic names.

BE41*

Opotiki

1.01

Updates to roads, f/track, f/bridges, v/tracks, schools, airfield, exotic forest

BE42

Houpoto

1.01

Updates to roads, f/track, v/tracks, exotic forest

BE43

Huiarua

1.02

Updates to roads, f/track, v/tracks, exotic forest

BE44

Te Puia Springs

1.01

Updates to roads, f/track, v/tracks, exotic forest, schools

BE45

Waipiro Bay

1.01

Updates to roads, f/track, v/tracks, exotic forest, schools

BF33

Te Kuiti

1.01

Updates to roads, f/track, v/tracks, exotic forest, schools

BF37

Waiotapu

1.01

Updates to roads, f/tracks, v/tracks, MTB tracks, schools, Geothermal Power Station

BF38*

Kaingaroa Forest

1.03

Updates to roads, f/tracks, schools, airstrip

BF39*

Galatea

1.04

Updates to f/tracks, vegetation

BF43*

Te Karaka

1.01

Updates to roads, v/tracks, schools, airstrips, buildings and extensive areas of exotic forest

BG32*

Ohura

1.01

Updates to roads, f/tracks, road & rail bridges, exotic forest.

BG36

Taupo

2.02

Updates to roads, f/tracks, v/tracks, schools, Geothermal Power Station, vegetation

BG38*

Wairapukao

1.03

Updates to f/track, v/tracks, campsite, exotic forest

BG39

Ruatahuna

1.02

Updates to f/track, v/tracks, campsite

BG40

Waikaremoana

1.02

Updates to f/track, v/tracks, huts

BH36

Motutere

1.02

Updates to f/track, v/tracks, huts

BH37*

Rangitaiki

1.02

Updates to roads, v/tracks, huts

BH38

Te Haroto

1.03

Updates to f/track, v/tracks, schools, exotic forest, huts

BH39*

Putorino

1.01

Updates to roads, f/tracks, v/tracks, schools

BH40

Mohaka

1.01

Updates to roads, v/tracks, schools, exotic forest

BJ36

Tawake Tohunga

1.02

Updates to roads, v/tracks

BJ37*

Kuripapango

1.01

Updates to roads, f/tracks, huts, campsite

BJ38

Te Pohue

1.02

Updates to roads, v/tracks, exotic forest

BJ39

Whirinaki

1.02

Updates to roads, f/track, v/tracks, campsite, exotic forest

BJ40pt

Waipatitki Beach

1.01

Updates to f/tracks, campsite

BK36

Taoroa Junction

1.03

Updates to f/tracks

BK38

Maraekakaho

1.01

Updates to roads, orchards, vineyards, schools, buildings

BK39

Hastings

2.01

Updates to roads, orchards, vineyards, schools, buildings, predator fence

BK40pt

Cape Kidnappers

2.01

Updates to roads, orchards, vineyards, schools, buildings, predator fence

BQ28*

Havelock

1.02

Updates to roads, f/tracks, schools, vineyards, marine farms, 1 new, 5 amended geographic names

BR20

Westport

1.02

Updates to roads, buildings, schools

BS19

Punakaiki

1.01

Updates to roads, f/tracks

BS20*

Charleston

1.02

Updates to roads, f/tracks, v/tracks, campsite, bush tramway added

BT19

Runanga

1.03

Updates to roads, tracks, buildings, exotic forest, schools

BU18

Hokitika

1.02

Updates to roads, f/tracks, buildings, schools

BV16

Mount Oneone

1.01

Updates to roads, f/tracks, buildings

BV17

Kakapotahi

1.01

Updates to roads, f/tracks, buildings

BV18

Kokatahi

1.02

Updates to roads, f/tracks, f/bridge, schools

BV19

Lake Kaniere

1.04

Updates to f/tracks, huts

BX21

Windwhistle

1.01

Updates to roads, exotic forest, transmission lines, irrigation patterns, schools

BX22

Darfield

1.01

Updates to roads, exotic forest, transmission lines, irrigation patterns, schools

BX23

Lincoln

1.03

Updates to roads, buildings, exotic forest, transmission lines, irrigation patterns, schools

BX24*

Christchurch

1.03

Updates to roads, f/tracks, schools, vegetation, earthquake effected areas (CBD and urban)

BY21

Ashburton

1.01

Updates to roads, buildings, irrigation patterns, schools

BY22

Pendarves

1.01

Updates to roads, exotic forest, schools

BY23

Fishermans Point

1.01

Updates to roads, f/tracks, irrigation patterns, wind turbine added.

BY24

Birdlings Flat

1.01

Updates to roads, f/tracks

BY25

Akaroa

1.02

Updates to roads, f/tracks

Selected Update

 

 

 

BA32

Auckland

1.04

Updates to roads, schools, 3 new geographic names,  12 amended geographic names

BA33

Waiheke Island

2.01

Updates to roads, schools, 1 amended geographic name.

BB31

Manukau Harbour

1.02

Updates to roads, f/track, schools, waterfalls, 1 new geographic name.

BB32

Papatoetoe

1.02

Updates to roads, residential area, schools, 2 new geographic names, 2 amended geographic names.

BC40pt

Whakaari / White Island

1.01

Update to the crater lake

BD36

Lower Kaimai

1.04

Updates to geographic names:  Two new names, Stokes Peak removed

BG31*

Mokau

1.01

Updates to roads, f/track, bridges, v/tracks, schools

BG41*

Ruakituri

1.02

Updates to roads, f/track, v/tracks, schools, airstrips, exotic forest, buildings

BH31*

Whangamomona

1.01

Updates to roads, f/track, bridges, v/tracks, schools, transmission lines

BQ28*

Havelock

1.02

Updates to roads, f/tracks, schools, vineyards, marine farms, 1 new, 5 amended geographic names

BW21

Springfield

1.02

Updates to roads

BW22*

Oxford

1.01

Updates to roads, f/tracks, schools

BW23

Cust

1.03

Updates to roads, schools. Campsite added

BW24

Rangiora

1.01

Updates to roads, f/tracks, v/tracks, transmission lines

BW25pt

Amberley Beach

1.01

Updates to roads

BX25

Duvauchelle

1.01

Updates to roads, f/tracks

BY17*

Lake Tekapo

1.04

Updates to roads, f/tracks, South Opuha hut repositioned

BZ21pt

Longbeach

1.01

Updates to roads

CA11*

Aspiring Flats

1.06

Correction to location of Quarterdeck Pass

CF07*

Mary Island

1.02

Updates to roads, f/tracks, huts. Campsite added

CG07pt

Sand Hill Point

1.02

Updates to roads, f/tracks, Percy Burn Hut added

CJ08*

Doughboy Bay

1.03

Updates to f/tracks, huts

 * = Printed version available