NZLRI South Island, Edition 2 (all attributes)

8531
479
Updated
15 Jul 2010

This dataset was last updated on LRIS Portal on 15 Jul 2010.

The New Zealand Land Resource Inventory (NZLRI) is a national database of physical land resource information. It comprises two sets of data compiled using stereo aerial photography, published and unpublished reference material, and extensive field work:

  1. An inventory of five physical factors (rock type, soil, slope, present type and severity of erosion, and vegetation). A 'homogeneous unit area' approach is used to record the five physical factors simultaneously to a level of detail appropriate for presentation at a scale of 1:50,000.

  2. A Land Use Capability (LUC) rating of the ability of each polygon to sustain agricultural production, based on an assessment of the inventory factors above, climate, the effects of past land use, and the potential for erosion. The NZLRI covers the country in 11 regions, each with a separate LUC classification.

The first edition NZLRI provides national coverage from mapping between 1973 and 1979 at a scale of 1:63,360. A limited revision regional upgrade of the north Waikato area was completed at a scale of 1:63,360 in 1983. Second edition NZLRI regional upgrades at a scale of 1:50,000 have been completed for Northland, Wellington, Marlborough and Gisborne-East Cape. Third edition NZLRI layers contained a restructured polygon attribute table to allow the core NZLRI to complement the newly created fundamental soil layers with minimal duplication

Layer ID 48135
Data type Vector polygon
Feature count 46448
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Soil Map of Otaki District

8840
98
Added
10 Nov 2010

This dataset was first added to LRIS Portal on 10 Nov 2010.

The dataset contains polygons of soils of Otaki District mapped at 1:15000. The attributes contain the soil series and the soil classification. No analytical properties of the soils are included.

Layer ID 48172
Data type Vector polygon
Feature count 769
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Mean minimum temperature of the coldest month 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).

Mean minimum temperature of the coldest month is recorded in °C. The climate station data used in the development of this climate surface were derived from summaries of climate observations published by the New Zealand Meteorological Service, using data collected over the period from 1950-1980. Estimates of the mean minimum temperature in July, the coldest month of winter, were derived from a surface fitted to monthly estimates of mean daily temperatures. The resulting data layer was created by coupling a 100 m DEM with a thin-plate spline surface fitted to an irregular network of 346 meteorological stations. The resulting 100 metre layer was then interpolated to 25 metres using bilinear interpolation.

This layer has been multiplied by a factor of 10 (i.e. converted into an integer grid) to save space and make the grids more responsive. A value of 53 is actually 5.3 °C.

Additional details such as the climate station locations used in the creation of the layer and error maps are defined in the attached LENZ Technical Guide.

Layer ID 48092
Data type Grid
Resolution 25.000m
Services Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

Analysis of DEM Accuracy

3101
5502
Added
26 Nov 2011

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

33
Document ID9213
File nameanalysis-of-dem-accuracy.pdf
TypePDF
Size6.11 MB

North Island Soilscapes

8031
435
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

Christchurch 15m DEM

Licence

Creative Commons Attribution 3.0 New Zealand

You may use this work for commercial purposes.

You must attribute the creator in your own works.

8025
301
Added
25 Feb 2011

This dataset was first added to LRIS Portal on 25 Feb 2011.

Digital Elevation Model of Christchurch New Zealand - a 15 metre resolution, floating point precision, elevation grid generated from the LINZ 1:50,000 scale Topographic data layers (20m contours, spot heights, lake shorelines and coastline) using Landcare Research's in-house interpolation.

Layer ID 48186
Data type Grid
Resolution 15.000m
Services Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

Bannockburn Soil Map (SB222)

7951
48
Added
21 Jun 2013

This dataset was first added to LRIS Portal on 21 Jun 2013.

A downloadable TIFF image of the 1:15,000 scale SB222 soil map - Soils of the Bannockburn Valley, South Island, New Zealand by FG Beecroft. A full resolution PDF version is also available in the attachments section.

Note this is a more detailed soil map than the Grow Otago soils maps, but uses the old Genetic Soil Classification - soil naming conventions used in this map and the attached report may differ from those found in newer soils maps and databases.

Layer ID 48358
Data type Image/Raster
Resolution 3.000m
Services Raster Tiles Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

Elevation

7658
252
Added
03 Oct 2012

This dataset was first added to LRIS Portal on 03 Oct 2012.

A 25m resolution digital elevation model (DEM) clipped from Landcare Research's national 25m DEM for use as a regression variable for calculating BASE carrying capacity. For use with Model 1.

Layer ID 48322
Data type Grid
Resolution 25.000m
Services Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

FSL Profile Available Water

7413
441
Added
28 May 2010

This dataset was first added to LRIS Portal on 28 May 2010.

The New Zealand Fundamental Soil Layer originates from a relational join of features from two databases: the New Zealand Land Resource Inventory (NZLRI), and the National Soils Database (NSD). The NZLRI is a national polygon database of physical land resource information, including a soil unit. Soil is one in an inventory of five physical factors (including rock, slope, erosion, and vegetation) delineated by physiographic polygons at approximately 1:50,000 scale. The NSD is a point database of soil physical, chemical, and mineralological characteristics for over 1500 soil profiles nationally. A relational join between the NZLRI dominant soil and derivative tables from the NSD was the means by which 14 important soil attributes were attached to the NZLRI polygons. Some if these attributes originate from exact matches with NSD records, while others derive from matches to similar soils or professional estimates. This layer contains best available, as at 2000, profile available water (PAW) data which estimates total available water for the soil profile to a depth of 0.9 m, or to the potential rooting depth (whichever is the lesser). Values are weighted averages over the specified profile section (0-0.9 m) and are expressed in units of mm of water.

Layer ID 48100
Data type Vector polygon
Feature count 107298
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZEEM (Erosion Rates) North Island

7566
123
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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