New Zealand Gridded Land Information Dataset (NZGLID)

The New Zealand Gridded Land Information Dataset integrates data from various sources to offer detailed spatial information about the land, soil, terrain, and environment of New Zealand's mainland. The dataset is available at spatial resolutions of 5 km and 1 km (WGS84). The input data were processed to achieve the final resolutions by rasterizing geospatial vector layers and reprojecting and performing bilinear resampling of raster layers.

The full dataset can be accessed by downloading the following files:

• New-Zealand-Gridded-Land-Information-Dataset_NZ5km.nc
• New-Zealand-Gridded-Land-Information-Dataset_NZ1km.nc

Individual variable files are also available in .zip folders.

Variables

The NZGLID comprises a total of 22 variables: land use capability, erosion severity, ph, salinity, cation exchange capacity, soil carbon, phosphate retention, topsoil gravel content, rock outcrops and surface boulders, particle size, potential rooting depth, depth to slowly permeable horizon, soil drainage, permeability profile, flood return interval, soil temperature regime, profile available water, profile readily available water, slope, aspect, land cover, land use.

Using the data

The data is provided in the NetCDF format following the CF Convention. NetCDF files can be opened and manipulated in GIS softwares (e.g., QGIS) or using programing languages (e.g., Python, R).

Categorical data are provided as numerical values. Users should refer to the flag_values and flag_meanings attributes for the correspondence between values and categories.

Releases Notes

Version v1.1

This version modifies the structures of the archives removing subfolders making downloading data through zenodo API easier. The data itself are the same.