Download polar volume (pvol) files from the NEXRAD archive

Source: R/download_pvolfiles.R

Download a selection of polar volume (pvol) files from the NEXRAD Level II archive data.

download_pvolfiles(
  date_min,
  date_max,
  radar,
  directory = ".",
  overwrite = FALSE,
  bucket = "noaa-nexrad-level2"
)

Arguments

date_min

POSIXct. Start date of file selection. If no timezone are provided, it will be assumed to be UTC.

date_max

POSIXct. End date of file selection.If no timezone are provided, it will be assumed to be UTC.

radar

character (vector). 4-letter radar code(s) (e.g. "KAMA")

directory

character. Path to local directory where files should be downloaded

overwrite

logical. TRUE for re-downloading and overwriting previously downloaded files of the same names.

bucket

character. Bucket name to use.

Value

NULL. The function's primary effect is to download selected polar volume files from the NEXRAD Level II archive to a specified local directory, and to provide a message and a progress bar in the console indicating the download status.

Examples

# create temporary directory
if (requireNamespace("aws.s3", quietly = TRUE)) {
temp_dir <- paste0(tempdir(),"/bioRad_tmp_files")
dir.create(temp_dir)
download_pvolfiles(
  date_min = as.POSIXct("2002-10-01 00:00", tz = "UTC"),
  date_max = as.POSIXct("2002-10-01 00:05", tz = "UTC"),
  radar = "KBRO",
  directory = temp_dir,
  overwrite = TRUE
)
# Clean up
unlink(temp_dir, recursive = TRUE)
}
#> Downloading data from noaa-nexrad-level2 for radar KBRO spanning over 1 days
#> 
#> Downloading pvol for 2002/10/01/KBRO/
#> 
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