SeaVal (version 1.1.1)

download_chirps_prelim_aux: Auxiliary function for downloading the preliminary CHIRPS monthly data

Description

This data becomes available earlier, but it has to be downloaded from UCSB. The function checks whether the non-preliminary version exists and only downloads otherwise. Annoyingly, the grid of UCBS and IRIDL are shifted against each other. Therefore this function also interpolates the UCSB data to the IRIDL grid, which makes it a bit slower. In particular, everything will crash if you have never downloaded a non-preliminary file and try to download a preliminary one.

Usage

download_chirps_prelim_aux(
  years,
  months,
  extent,
  timeout_limit = 300,
  nonprelim_dir = file.path(chirps_dir(), "monthly"),
  save_dir = file.path(nonprelim_dir, "prelim")
)

Value

nothing

Arguments

years

years for which you want to download

months

months for which you want to download

extent

Spatial window for downloading

timeout_limit

How many seconds before download is aborted.

nonprelim_dir

Directory where the non-preliminary CHIRPS data is stored.

save_dir

Directory where the function stores the preliminary data.

Examples

if(interactive()){
download_chirps_prelim_aux(years = 2023, months = 10)
}