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Read SRTM elevation data from Google Earth Engine

Source: R/read_srtm.R
read_srtm.Rd

Reads USGS/SRTMGL1_003 (NASA Shuttle Radar Topography Mission Digital Elevation Model) from Google Earth Engine. This is a static dataset — no date argument is needed.

Usage

read_srtm(
  region,
  backend = c("rest", "rgee"),
  cache = TRUE,
  max_tries = 3L,
  initial_delay = 1
)

Arguments

region

An sf::sf, sf::st_sfc(), or terra::ext() object defining the spatial extent. Required.

backend

Character. "rest" (default) or "rgee".

cache

Logical. Use disk cache? Default TRUE.

max_tries

Integer. Retry attempts. Default 3L.

initial_delay

Numeric. Initial retry delay in seconds. Default 1.

Value

A terra::rast() SpatRaster. CRS: EPSG:4326. Values: elevation in metres above sea level.

Data availability

Static (single acquisition, February 2000). 30 m spatial resolution. Coverage: 60N to 56S.

References

Farr, T.G. et al. (2007). The Shuttle Radar Topography Mission. Reviews of Geophysics, 45(2). doi:10.1029/2005RG000183

See also

read_gee(), collect_gee_data()

Other GEE readers: read_chirps(), read_era5(), read_gee(), read_landsat(), read_modis_lst(), read_modis_ndvi(), read_sentinel2(), read_slga(), read_worldclim()

Examples

if (FALSE) { # interactive()
elev <- read_srtm(region = terra::ext(138, 140, -36, -34))
terra::plot(elev)
}