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25.000m

LENZ - Slope

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Licence

Landcare Data Use License

16281
1493
Added
29 May 2010

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

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Dublin Core Metadata XML PDF

Title

Slope - LENZ

Creator

Landcare Research Ltd

Publisher

Landcare Research Ltd

Date

2003-01-01

Description

Slope data layer used in the creation of Land Environments of New Zealand (LENZ) classification. 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.

Source

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. The DEM used is not the latest version available from Landcare Research but was the most up to date version when LENZ was created in 2003. Additional details about its creation are defined in the attached LENZ Technical Guide.

Coverage

-47.505151 166.122046 -33.959618 179.601635

Format

ESRI Binary Grid Raster Dataset

Identifier

https://lris.scinfo.org.nz/layer/48081-lenz-slope/

Type

grid

Language

en

Subject

Slope

Subject

LENZ

Subject

Land

Subject

DEM

Subject

New Zealand

Subject

Downloadable Data

Subject

environment

Subject

elevation