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Build the Sentinel-2 / Esri land-cover GeoTIFF URL for a tile and year

Source: R/sentinel2.R
s2_source_url.Rd

Returns the public Cloud-Optimized GeoTIFF URL of one MGRS grid-zone tile of the Esri / Impact Observatory 10 m Annual Land Use Land Cover product. The global mosaic is tiled by MGRS grid-zone designator (e.g. "47P"); an area of interest usually intersects one or a few tiles, which the local backend resolves automatically (see s2_raster_local).

Usage

s2_source_url(tile, year = 2023, base_url = NULL)

Arguments

tile

MGRS grid-zone designator (UTM zone number + latitude band letter), e.g. "47P". The public bucket zero-pads the zone to two digits (e.g. "01C").

year

Integer year (2017-2023).

base_url

Base URL of the public bucket holding the per-tile COGs. Defaults to the public AWS Open Data bucket io-10m-annual-lulc; kept overridable so a mirror or an updated layout can be used without changing the package.

Value

A length-1 character URL of the form <base>/<tile>_<year>.tif.

See also

s2_raster_local, esri_legend

Examples

s2_source_url("47P", 2023)
#> [1] "https://io-10m-annual-lulc.s3.us-west-2.amazonaws.com/47P_2023.tif"