daymet_grid_agg: Aggregate daily Daymet data

In daymetr: Interface to the 'Daymet' Web Services

Aggregate daily Daymet data

Description

Aggregates daily Daymet data by time interval to create convenient seasonal datasets for data exploration or modelling.

Usage

daymet_grid_agg(
  file,
  int = "seasonal",
  fun = "mean",
  internal = FALSE,
  path = tempdir()
)

Arguments

file	The name of the file to be processed. Use daily gridded Daymet data.
int	Interval to aggregate by. Options are "monthly", "seasonal" or "annual". Seasons are defined as the astronomical seasons between solstices and equinoxes (default = "seasonal")
fun	Function to be used to aggregate data. Genertic R functions can be used. "mean" and "sum" are suggested. na.rm = TRUE by default. (default = "mean")
internal	logical If FALSE, write the output to a tif file using the Daymet file format protocol.
path	path to a directory where output files should be written. Used only if internal = FALSE (default = tempdir())

Value

aggregated daily Daymet data as a tiff file written to disk or a raster stack when data is returned to the workspace.

Examples

 ## Not run: 
 # This code calculates the average minimum temperature by 
 # season for a subset region.
 
 # download default ncss tiled subset for 1980
 # (daily tmin values only), works on tiles as well
 download_daymet_ncss()
     
 # Finally, run the function
 daymet_grid_agg(
  file = file.path(tempdir(),"/tmin_daily_1980_ncss.nc"),
  int = "seasonal",
  fun = "mean"
 )
 
## End(Not run)

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