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MapBiomas class areas via Google Earth Engine (optional backend)

Source: R/mapbiomas_gee.R
mb_class_areas_gee.Rd

Computes the area (km^2) of each MapBiomas pixel class inside aoi entirely on Google Earth Engine, without downloading any raster. This is the recommended backend for very large ranges (e.g. continental EOOs) where a local windowed read would transfer too much data.

Usage

mb_class_areas_gee(
  aoi,
  year = 2024,
  collection = 10,
  version = "v1",
  asset = "projects/mapbiomas-public/assets/brazil/lulc/v1",
  scale = 30,
  max_pixels = 1e+13
)

Arguments

aoi

An sf/sfc polygon (any CRS).

year

Integer year (default 2024).

collection

Integer MapBiomas collection id (default 10).

version

Asset version string for the public LULC collection (default "v1"; some mirrors expose "v2" for Collection 10.1).

asset

Earth Engine ImageCollection id (default "projects/mapbiomas-public/assets/brazil/lulc/v1").

scale

Nominal pixel scale in metres for the reduction (default 30).

max_pixels

Maximum pixels for the server-side reduction (default 1e13).

Value

A data.frame with columns code and area_km2.

Details

Requires the rgee package and an initialised Earth Engine session (rgee::ee_Initialize()); see the package README for one-time setup.