Overview

A package to make life easier working with daily netcdf files from the EURO-CORDEX RCMs. Relies on data.table to do the heavy data lifting.

Main components:

• extract single grid cells (e.g. for stations) from rotated pole grid: rotpole_nc_point_to_dt()
• extract the whole array of a variable in long format: nc_grid_to_dt()
• can deal with non-standard calendars (360, noleap) and interpolate them
• get and check list of EURO-CORDEX .nc files: get_inventory()

Alternatives:

The stars and terra (previously raster) packages can be used similarly, although the functionality for rotated pole grids and non-standard calendars might be different.

Installation

Get the CRAN version:

# from CRAN
install.packages("eurocordexr")

Or get the latest (development) version from github:

# or from github
devtools::install_github("mitmat/eurocordexr")

Requires the following packages (which should be installed automatically with above):

library(data.table)
library(lubridate)
library(magrittr)
library(ncdf4)
library(ncdf4.helpers)

For the netCDF packages, depending on your system, additional libraries might be needed.

Other

Some documentation can be found in the doc/ subfolder. To view the HTML files you may need to download the files (and not view them in github).

Contribution and help

Any ideas and suggestions are welcome! Feel free to contact me or open issues in github.