ArcGIS Layer file - Land Element

1555
271
Added
17 Jun 2013

This item was first added to LRIS Portal on 17 Jun 2013

ArcGIS layer file for symbolizing Land Element gridded layer. User may need to reconnect symbolization to "value" attribute of grid.

Document ID9364
File namearcgis-layer-file-land-element.lyr
TypeLYR
Size7.17 KB

Key to North Island Soilscape Coding

1610
738
Added
26 Nov 2011

This item was first added to LRIS Portal on 26 Nov 2011

Document ID9138
File namekey-to-north-island-soilscape-coding.docx
TypeDOCX
Size23.1 KB

Key to Sorth Island Soilscape Coding

1290
491
Added
23 Nov 2011

This item was first added to LRIS Portal on 23 Nov 2011

Document ID9139
File namekey-to-sorth-island-soilscape-coding.docx
TypeDOCX
Size23.8 KB

Land Elements (North Island)

5003
119
Updated
04 Aug 2017

This dataset was last updated on LRIS Portal on 04 Aug 2017.

This data layer was derived from terrain analysis of a 25 m resolution national digital terrain model to create a setof landform elements. The landform elements are derived from a fuzzy classification based on local geometry (curvature and slope) and landscape context, and provide a primary foundation for mapping soil distribution in steepland land systems, which significantly improves knowledge of soil distribution on hillslopes in complex landscapes, and over a wide range of land systems.

Layer ID 48334
Data type Image/Raster
Resolution 25.000m
Services Raster Tiles Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

Land Elements (South Island)

4381
85
Updated
04 Aug 2017

This dataset was last updated on LRIS Portal on 04 Aug 2017.

This data layer was derived from terrain analysis of a 25 m resolution national digital terrain model to create a setof landform elements. The landform elements are derived from a fuzzy classification based on local geometry (curvature and slope) and landscape context, and provide a primary foundation for mapping soil distribution in steepland land systems, which significantly improves knowledge of soil distribution on hillslopes in complex landscapes, and over a wide range of land systems.

Layer ID 48335
Data type Image/Raster
Resolution 25.000m
Services Raster Tiles Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

Landform Elements Barringer et. al., 2007

1503
432
Added
17 Jun 2013

This item was first added to LRIS Portal on 17 Jun 2013

17

Copy of paper describing how New Zealand coverage of Landform Elements was created

Document ID9367
File namelandform-elements-barringer-et-al-2007.pdf
TypePDF
Size498 KB

LENZ - Slope

16289
1493
Added
29 May 2010

This dataset was first added to LRIS Portal on 29 May 2010.

Slope data layer used in the creation of Land Environments of New Zealand (LENZ) classification. The classification layers have been made publicly available by the Ministry for the Environment (see data.mfe.govt.nz/layers/?q=LENZ for to access these layers).

This slope data layer is measured in degrees and was created from a 25-metre digital elevation model (DEM) fitted to 20-m digital contour data derived from New Zealand's NZMS 260 map series using in-house software developed at Landcare Research.

All contours were originally derived photogrammetrically from stereo photographs for final map reproduction at a scale of 1: 50 000. Additional intermediate contours and spot heights were used in generating the DEM where available, while coastlines and shorelines (for lakes greater than 10 ha in extent) were used to constrain the DEM surface around water bodies. The linear interpolation method used to create the DEM threads contours through the cells before interpolation so that any cell intersected by a contour will be given the elevation value of that contour, leading to a high percentage of cells with elevations that are multiples of 20 or 10 in steep areas.

Additional details are defined in the attached LENZ Technical Guide.

Layer ID 48081
Data type Grid
Resolution 25.000m
Services Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

North Island Soilscapes

8489
442
Added
25 Jun 2010

This dataset was first added to LRIS Portal on 25 Jun 2010.

Soilscapes are defined as "a landscape unit including a limited number of soil classes that are geographically distributed according to an identifiable pattern". These first approximation soilscapes are derived from legacy data and expert knowledge.

Layer ID 48125
Data type Vector multipolygon
Feature count 157
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

North Island Soilscapes ESRI symbol layer file

1418
426
Added
26 Nov 2011

This item was first added to LRIS Portal on 26 Nov 2011

Document ID9224
File namenorth-island-soilscapes-esri-symbol-layer-file.lyr
TypeLYR
Size43.5 KB

NZEEM (Erosion Rates) North Island

8096
142
Added
02 Dec 2010

This dataset was first added to LRIS Portal on 02 Dec 2010.

Mean annual erosion rates (tonnes of soil/km2/yr) in the North Island of New Zealand under current landcover generated from EcoSat Woody (2001-2003).

This layer is not available for download on LRIS. If you are interested in downloading that layer, please contact John Dymond.

Reference: John R. Dymond, Harley D. Betts, Christina S. Schierlitz, An erosion model for evaluating regional land-use scenarios, Environmental Modelling and Software, Volume 25, Issue 3, March 2010, Pages 289-298, ISSN 1364-8152, DOI.

Layer ID 48178
Data type Grid
Resolution 15.000m
Services Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed
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