Download MapBiomas Alerta Peru deforestation alerts with spatial filtering

Download the latest deforestation alerts detected by MapBiomas Alerta Peru for a specific geographic area using an sf object (bounding box or polygon). For more details, please visit: MapBiomas Peru Platform

Usage

get_mapbiomas_peru_alerta(
  region = NULL,
  from = NULL,
  to = NULL,
  dsn = NULL,
  method = "within",
  show_progress = TRUE,
  quiet = TRUE,
  timeout = 60
)

Arguments

region

An sf object specifying the area of interest (must be in EPSG:4326 - WGS 84).

from

Character. Start date in "YYYY-MM-DD" format. If NULL, no lower bound.

to

Character. End date in "YYYY-MM-DD" format. If NULL, no upper bound.

dsn

Character. Output filename. If missing, a temporary GeoJSON file is created.

method

Character. Spatial predicate used to filter the downloaded alerts against region: "intersects" (safest default is "within" for backward compatibility), "within", "contains", "crosses", "touches".

show_progress

Logical. Show cli progress. Default TRUE.

quiet

Logical. Suppress messages from sf::st_read(). Default TRUE.

timeout

Numeric. Seconds to wait for the server response (default 60).

Value

An sf object with alert geometries, attributes and image URLs.

Details

The bounding box of region is used to query the WFS service. Image URLs are generated from the alert id and point to public Google Cloud Storage buckets. Column names are normalised to lowercase.