Downloading CHIRPS data

library(umbrella)

This vignette demonstrates how to download CHIRPS daily rainfall rasters using the helper functions in umbrella.

First build a vector of URLs for the desired year with get_urls():

urls_2020 <- get_urls(2020)

Each URL can then be downloaded with download_raster(). The file is unzipped automatically:

# download the first day of 2020
download_raster(urls_2020[1], "chirps_2020_01_01.tif.gz")

Remember that each unzipped raster is around 2.2 MB, so downloading a full year will require a substantial amount of disk space.