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Land cover

Source: R/layers-raster.R
mn_landcover.Rd

Land cover from ESA WorldCover 2021, in 11 classes such as grassland, bare ground, cropland and built-up areas. The result is a categorical raster with class names and the official colours, so terra::plot() draws it with a legend.

Usage

mn_landcover(
  resolution = c("1km", "10m"),
  within = NULL,
  mask = TRUE,
  crs = NULL
)

Arguments

resolution

"1km" or "10m".

within

Area to return (names or codes). Required for the online resolutions: "90m" elevation and "10m" land cover.

mask

If TRUE (default), cells outside Mongolia (or outside within) are set to NA.

crs

Coordinate reference system of the result. NULL (default) keeps longitude/latitude (EPSG:4326). Use "albers", "lcc" or "utm" for a projection suited to Mongolia (see mn_crs()), or any value accepted by sf::st_crs().

Value

A categorical terra SpatRaster.

Details

  • resolution = "1km" (default): national grid, majority class of each square kilometre, downloaded once (about 2 MB).

  • resolution = "10m": the original 10 m data for the area in within (a soum, district or smaller aimag), read from the cloud.

Source

ESA WorldCover 10 m 2021 v200, (c) ESA WorldCover project / contains modified Copernicus Sentinel data (2021) processed by the ESA WorldCover consortium. CC BY 4.0.

See also

Other raster layers: mn_elevation(), mn_population(), mn_zonal()

Examples

lc <- mn_landcover()
#> ℹ Downloading Land cover, 1 km (ESA WorldCover 2021) (0.3 MB); this happens
#>   once.
terra::plot(lc)

terra::plot(mn_landcover("10m", within = "Nalaikh"))