Date ( Creation )

2018-09-01

Date ( Publication )

2019-04-15

Date ( Revision )

2018-09-25

Presentation form

Digital map

Purpose

LUM tracks and quantifies changes in New Zealand land use so that Land Use, Land Use Change and Forestry (LULUCF) sector carbon accounting can be calculated for national Net Position, Kyoto Protocol and United Nations Framework Convention on Climate Change (UNFCCC) reporting.

Credit

Manaaki Whenua - Landcare Research

Status

Completed

Maintenance and update frequency

Irregular

Name

*.xml

Version

Unknown

ANZLIC Jurisdictions ( Theme )

• New Zealand

ANZLIC Search Words ( Theme )

• LAND-Use
• FORESTS-Natural
• FORESTS-Plantation

Use limitation

Creative Commons Attribution 4.0 International by Ministry for the Environment

Access constraints

License

Use limitation

Creative Commons Attribution 4.0 International by Ministry for the Environment

Use constraints

License

Spatial representation type

Vector

Metadata language

English

Character set

UTF8

Topic category

• Environment
• Boundaries
• Farming
• Location
• Planning cadastre
• Structure

Environment description

Microsoft Windows 10 Version 10.0 (Build 19044) ; Esri ArcGIS 12.8.3.29751

Geographic identifier

nzl

 

Date ( Publication )

2009-03-31

Edition

Version 1.0

Edition date

2009-03-31

Identifier

http://asdd.ga.gov.au/asdd/profileinfo/anzlic-country.xml#Country

  Custodian

ANZLIC the Spatial Information Council  

Reference system identifier

EPSG / 3793 / 6.15(9.0.0)

Topology level

Geometry only

Geometric object type

Composite

Geometric object count

3071

Distribution format

• Enterprise Geodatabase Feature Class ()

OnLine resource

https://data.mfe.govt.nz/layer/99857-lucas-chatham-islands-land-use-map-1990-2008-2012-2016-v002/  

Hierarchy level

Dataset

Other

dataset

Statement

*1990 land use mapping*

The 1990 land-use map was derived from 15 m spatial resolution SPOT 1 satellite imagery taken between March and August 1989. In addition to orthorectification and atmospheric correction, the satellite images were standardised for spectral reflectance using the Ecosat algorithms documented in Dymond et al, (2001), Shepherd and Dymond (2003) and Dymond and Shepherd (2004). These standardised images were used for the automated mapping of woody biomass and the classification of woody land use classes. These land-use classes at 1990 included natural forest, pre-1990 planted forest and grassland with woody biomass.

This classification process was validated using 30 m resolution Landsat 7 ETM+ imagery acquired mid-2000.

To determine the spatial location of the other land-use classes as at 1990, 2008 and 2012, information from three land cover databases, LCDB1 (1996), LCDB2 (2001) (Thompson et al, 2004) and LCDB3 (2008), the New Zealand Land Resource Inventory (Eyles, 1977) and hydrological data from Land Information New Zealand were used (Shepherd and Newsome, 2009a,b).

The NZLRI database was used to better define the area of high and Low-producing grassland. Areas tagged as ‘improved pasture’ in the NZLRI vegetation records were classified as Grassland – high producing in the land-use maps. All other areas were classified as Grassland – low producing.

An interpretation guide for automated and visual interpretation was prepared and used so that all mapping processes were undertaken on a consistent basis (Ministry for the Environment, 2012). Independent quality control was undertaken for all mapping. This involved an independent agency looking at randomly-selected points across mainland New Zealand and using the same data as the original operator to decide what land use the point fell within. The two operators were in agreement at least ninety-five percent of the time.

*2008 land-use mapping*

The 2008 land-use map (land-use as at 1 January 2008) was derived from 10 m spatial resolution SPOT 5 satellite imagery which was processed into standardised reflectance images, using the same approach as for the 1990 imagery. The SPOT 5 imagery was taken September and October 2008. An earlier Landsat 7 scene taken January 2008 was used to supplement the SPOT 5 evidence.

*2012 land-use mapping*

SPOT 5 satellite imagery was again used in 2013 to create the 2012 land use map. This map was based on imagery acquired January 2012.

All imagery was pre-processed as for the 2008 map; however, in this instance, the 2008 and 2012 standardised imagery was then combined into an image stack in order to detect areas of change.

*2016 land-use mapping*

Sentinel 2 satellite imagery was used in 2018 to create the 2016 land use map. This map was based on imagery acquired December 2016 and February 2017.

All imagery was pre-processed and the 2012 (SPOT 5) and 2016 (Sentinel 2) standardised imagery was analysed in a stack to detect areas of change.

Note that improvements made to the mapping of high and low-producing grassland in the mainland NZ LUCAS LUM using data fusion techniques developed by Manaaki Whenua – Landcare Research as part of the Innovative Data Analysis project (Manderson et al., 2018) could not be applied to the Chatham Islands mapping due to a lack of input evidence.

gmd:MD_Metadata

File identifier

cfbdaf5b-08cc-f424-3764-cf27c72211b9   XML

Metadata language

English

Character set

UTF8

Hierarchy level

Dataset

Hierarchy level name

dataset

Date stamp

2022-11-21T13:28:32

Metadata standard name

ISO 19139 Geographic Information - Metadata - Implementation Specification

Metadata standard version

2007