load_dem: Retrieve DEM data from a list of STAC assets

In rcrisp: Automate the Delineation of Urban River Spaces

Retrieve DEM data from a list of STAC assets

Description

Load DEM data from a list of tiles, crop and merge using a given bounding box to create a raster DEM for the specified region. Results are cached, so that new queries with the same input parameters will be loaded from disk.

Usage

load_dem(bb, tile_urls, force_download = FALSE)

Arguments

bb	A bounding box, provided either as a matrix (rows for "x", "y", columns for "min", "max") or as a vector ("xmin", "ymin", "xmax", "ymax") of class bbox.
tile_urls	A list of tiles where to read the DEM data from
force_download	Download data even if cached data is available

Value

A DEM of class terra::SpatRaster, retrieved and retiled to the given bounding box

Examples

bb <- get_osm_bb("Bucharest")
tile_urls <- get_stac_asset_urls(bb)
load_dem(bb = bb, tile_urls = tile_urls, force_download = TRUE)

rcrisp documentation built on Nov. 24, 2025, 5:07 p.m.