download_daymet_ncss: Function to geographically subset 'Daymet' regions exceeding...

In daymetr: Interface to the 'Daymet' Web Services

Function to geographically subset 'Daymet' regions exceeding tile limits

Description

Function to geographically subset 'Daymet' regions exceeding tile limits

Usage

download_daymet_ncss(
  location = c(34, -82, 33.75, -81.75),
  start = 1980,
  end = 1980,
  param = "tmin",
  frequency = "daily",
  mosaic = "na",
  path = tempdir(),
  silent = FALSE,
  force = FALSE,
  ssl = TRUE
)

Arguments

location	location of a bounding box c(lat, lon, lat, lon) defined by a top left and bottom-right coordinates
start	start of the range of years over which to download data
end	end of the range of years over which to download data
param	climate variable you want to download vapour pressure (vp), minimum and maximum temperature (tmin,tmax), snow water equivalent (swe), solar radiation (srad), precipitation (prcp) , day length (dayl). The default setting is ALL, this will download all the previously mentioned climate variables.
frequency	frequency of the data requested (default = "daily", other options are "monthly" or "annual").
mosaic	which tile mosiac to source from (na = Northern America, hi = Hawaii, pr = Puerto Rico), defaults to "na".
path	directory where to store the downloaded data (default = tempdir())
silent	suppress the verbose output
force	TRUE or FALSE (default), override the conservative end year setting
ssl	TRUE (default) or FALSE, override default SSL settings in case of CA issues

Value

netCDF data file of an area circumscribed by the location bounding box

Examples

## Not run: 
# The following call allows you to subset gridded
# Daymet data using a bounding box location. This
# is an alternative way to query gridded data. The
# routine is particularly helpful if you need certain
# data which stradles boundaries of multiple tiles
# or a smaller subset of a larger tile. Keep in mind
# that there is a 6GB upper limit to the output file
# so querying larger regions will result in an error.
# To download larger areas use the download_daymet_tiles()
# function.

# Download a subset of a / multiple tiles
# into your current working directory.
download_daymet_ncss(location = c(34, -82, 33.75, -81.75),
                      start = 1980,
                      end = 1980,
                      param = "tmin",
                      path = tempdir())
                      
# For other practical examples consult the included
# vignette. 

## End(Not run)

daymetr documentation built on Sept. 15, 2023, 5:07 p.m.