Read ABARES' Catchment Scale "Land Use of Australia" GeoTIFFs Using terra
Source:R/read_clum_terra.R
read_clum_terra.RdDownload and import catchment scale "Land Use of Australia" GeoTIFFs using
terra as a categorical terra::rast() object.
Source
- Catchment Scale Land Use of Australia v2 GeoTiff
https://www.agriculture.gov.au/sites/default/files/documents/clum_50m_2023_v2.zip
- Date and Scale of Mapping Shapefile GeoTIFF
Arguments
- data_set
A string value indicating the data desired for download. One of:
- clum_50m_2023_v2
Catchment Scale Land Use of Australia – Update December 2023 version 2
- scale_date_update
Catchment Scale Land Use of Australia - Date and Scale of Mapping
.
- x
A file path providing the file with the data to be imported. The file is assumed to be unarchived (i.e., still zipped). This function does not provide any checking whether this function is the proper function for the provided file. Defaults to
NULL, assuming that the file will be downloaded in the active R session.- ...
Additional arguments passed to
terra::rast().
Value
A terra::rast() object that may be one or many layers depending
upon the requested data set.
Details
From the ABARES documentation "The Catchment Scale Land Use of Australia – Update December 2023 version 2 dataset is the national compilation of catchment scale land use data available for Australia (CLUM), as at December 2023. It replaces the Catchment Scale Land Use of Australia – Update December 2020. It is a seamless raster dataset that combines land use data for all state and territory jurisdictions, compiled at a resolution of 50 metres by 50 metres. The CLUM data shows a single dominant land use for a given area, based on the primary management objective of the land manager (as identified by state and territory agencies). Land use is classified according to the Australian Land Use and Management Classification version 8. It has been compiled from vector land use datasets collected as part of state and territory mapping programs and other authoritative sources, through the Australian Collaborative Land Use and Management Program. Catchment scale land use data was produced by combining land tenure and other types of land use information including, fine-scale satellite data, ancillary datasets, and information collected in the field. The date of mapping (2008 to 2023) and scale of mapping (1:5,000 to 1:250,000) vary, reflecting the source data, capture date and scale. Date and scale of mapping are provided in supporting datasets." – ABARES, 2024-06-27
Active categories
The catchment scale land use data set is a categorical raster with many
categories. The raster will load with the default category for each data
set, but you can specify a different category to use through
terra::activeCat() after loading. To see which categories are available,
please refer to the metadata for these data. The PDF can be accessed in
your default web browser by using view_clum_metadata_pdf().
Map colours
Where ABARES has provided a style guide, it will be applied by default to the raster object. Not all GeoTiff files have a colour guide available.
References
ABARES 2024, Catchment Scale Land Use of Australia – Update December 2023 version 2, Australian Bureau of Agricultural and Resource Economics and Sciences, Canberra, June, CC BY 4.0, DOI: doi:10.25814/2w2p-ph98
See also
Other clum:
read_clum_stars()
Examples
if (FALSE) { # interactive()
clum_terra <- read_clum_terra(data_set = "clum_50m_2023_v2")
clum_terra
plot(clum_terra)
}