ce_download: Download climate and elevation data

In climenv: Download, Extract and Visualise Climate and Elevation Data

Download climate and elevation data

Description

ce_download() brings together the worldclim(), chelsa() and elev() functions to streamline downloading.

Usage

ce_download(
  output_dir,
  c_source = "WorldClim",
  e_source = "mapzen",
  var = "all",
  location,
  ...
)

Arguments

output_dir	Character (e.g., "../Desktop/chelsa"). Pathway to where the data will be stored.
c_source	Character (e.g., "CHELSA or WorldClim"). Indicating the climate data source.
e_source	Character (e.g., mapzen or geodata). Indicating the elevation data source.
var	Character. If supplied will download a subset of the climate data. Must be one of "all" (default), "prec", "tmax", "tmin" or "tmean" to download the corresponding climate data.
location	A "sp", "sf" polygon or point object. See sf::st_polygon to make polygons and sf::st_as_sf to make point objects.
...	Arguments to control a download from the Internet download.file().

Value

See documentation from chelsa(), worldclim() and elev().

Author(s)

James L. Tsakalos and Martin R. Smith

See Also

The underlying functions chelsa(), worldclim() and elev().

Examples

# Download time will depend on the size of the area you wish to access
# climate data for and your internet connection speed.

# Make a polygon file
regents <- sf::st_polygon(
  list(
    cbind(
      "lon" = c(51.537, 51.525, 51.523, 51.530, 51.534, 51.537),
      "lat" = c(-0.150, -0.145, -0.156, -0.167, -0.163, -0.150)
    )
  )
)

# Create temporary output directory
temp_path <- tempdir()

# Run the download function
ce_download(
  output_dir = temp_path,
  location = regents
)

# Reset user options
unlink(file.path(temp_path))

climenv documentation built on Nov. 3, 2023, 1:08 a.m.