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Download the ESRI 10m Land Use/Land Cover Time Series (LULC) Layer

download_esri_lulc_data.Rd

Retrieves the ESRI Global LULC Time Series at 10m resolution from Earth Engine. Downloads the most recent year available and returns the result as a local Cloud-Optimized GeoTIFF with appropriate layer naming.

Uso

download_esri_lulc_data(
  boundary_layer,
  iso3,
  gee_project,
  output_dir = here::here(),
  pus = NULL,
  aggregate_to_pus = FALSE,
  wait_time = 5,
  ...
)

Argumentos

boundary_layer

An sf object defining the spatial boundary of interest.

iso3

Character. Three-letter ISO country code for filename generation.

gee_project

Character. Google Earth Engine cloud project ID. This is required and must be a valid GEE project you have access to. Find your project ID in the GEE Code Editor.

output_dir

Character. Local output directory. Defaults to project root via here::here()

pus

SpatRaster or NULL. Planning units raster for GEE-side aggregation. When provided with aggregate_to_pus = TRUE, the export will be resampled to match the PU resolution and projection in GEE before download.

aggregate_to_pus

Logical. If TRUE and pus is provided, aggregate the data to planning unit resolution in GEE before export. This significantly speeds up processing by eliminating local resampling. Default is FALSE.

wait_time

Numeric. Maximum time in minutes to wait for the GEE export to appear in Google Drive. Default is 5. Increase for large exports.

...

Additional arguments passed to download_gee_layer().

Valor

A SpatRaster object of the downloaded LULC data, or NULL if download failed

Ver también

download_lulc_data(), get_lulc_classes()

Ejemplos

if (FALSE) { # \dontrun{
# Download LULC data for Ghana
lulc <- download_esri_lulc_data(
  boundary_layer = ghana_boundary,
  iso3 = "GHA",
  gee_project = "my-gee-project"
)

# Download with GEE-side aggregation to planning units
lulc_agg <- download_esri_lulc_data(
  boundary_layer = ghana_boundary,
  iso3 = "GHA",
  gee_project = "my-gee-project",
  pus = planning_units,
  aggregate_to_pus = TRUE
)
} # }