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Feb 26, 2020
Apr 17, 2019
Feb 26, 2020

R Framework for Climate Data Access and Post-processing

climate4R is a bundle of R packages for transparent climate data access, post-processing (including data collocation and bias correction / downscaling) and visualization. climate4R builds on two main data structures (grid and station, including metadata) to deal with gridded and point data from observations, reanalysis, seasonal forecasts and climate projections. It considers ensemble members as a basic dimension of the data structures. Moreover, climate4R is transparently (and remotely) connected to the Santander Climate Data Gateway, offering several state-of-the-art datasets (including CMIP5 and CORDEX subsets).

  • climate4R is formed by the following four core packages (all in GitHub): loadeR , transformeR, downscaleR and visualizeR. These packages are fully documented in the corresponding GitHub wikis.

  • climate4R capabilities are further extended by providing support to physical units handling (convertR package) and geoprocessing tasks (geoprocessoR package).

  • Compatibility with some external packages has been achieved by wrapping packages, thus enhancing climate4R with new functionalities (e.g. ETCCDI extreme climate indices via the climdex package).

  • Semantic provenance (metadata) information for climate4R products can be generated using METACLIP via the metaclipR package.

  • Conda and docker climate4R installations available. The docker file also includes the jupyter framework. This is the base layer for the climate4R Hub (a cloud-based computing facility to run climate4R notebooks at IFCA/CSIC Cloud Services).

References and Examples

The formal reference of climate4R is:

M. Iturbide, J. Bedia, S. Herrera, J. Baño-Medina, J. Fernández, M.D. Frías, R. Manzanas, D. San-Martín, E. Cimadevilla, A.S. Cofiño and JM Gutiérrez (2019) The R-based climate4R open framework for reproducible climate data access and post-processing. Environmental Modelling & Software, 111, 42-54. DOI: /10.1016/j.envsoft.2018.09.009

Additional references for specific components of climate4R (with worked examples) are Cofiño et al. 2018 (seasonal forecasting ), Frías et al. 2018 (visualization), Bedia et al. 2019 (data provenance) and Bedia et al. 2019a (statistical downscaling). Other publications describing applications in sectoral impact studies (also with worked out examples) are Bedia et al. (2018) (fire danger) or Iturbide et al. (2018) (Species distribution models), among others.

Moreover, there is a notebook repository including several illustrative notebooks with worked-out examples (which are companion material of several papers).


Direct package installation from github:

    > library(devtools)
    > install_github(c("SantanderMetGroup/",

Installation using miniconda:

Miniconda is a free minimal installer for conda. Using the conda recipe it is possible to install an up-to-date version of the different packages composing the climate4R framework, and all the associated library dependencies (udunits, openjdk, netcdf Java etc.), avoiding some possible problems like the R-java configuration etc. Note that the appropriate miniconda distribution must be installed before running the command (go to the miniconda installers page):

# create a conda environment
conda create --name nameofmycondaenvironment
# activate the environment
conda activate nameofmycondaenvironment
# install climate4R
conda install -c defaults -c conda-forge -c santandermetgroup climate4r

Activate the conda environment to work with climate4R. To deactivate the environment run the following:

# deactivate the environment
conda deactivate nameofmycondaenvironment

NOTE: installation of specific package versions

In case a particular paper notebook is to be replicated, the installation of specific version tags can be done by just explicitly indicating the tag number in the repo name. For example:

   > devtools::install_github("SantanderMetGroup/visualizeR@v1.0.0")

installs the visualizeR package version used in Frías et al. 2018, while the following

   > devtools::install_github("SantanderMetGroup/visualizeR@v1.4.6")

will install a more recent version of the package used in the paper by Iturbide et al. 2019.

Example of use

Examples of use of the climate4R framework are given in the reference papers above. In the following we illustrate the main functionalities of climate4R with a simple example, consisting on calculating an ETCCDI index (Summer Days) from bias corrected EURO-CORDEX data over Southern Europe. More details at the brief introduction to climate4R document in the man folder and full code at the companion jupyter notebook.

User Support

Please note that the pool of people who can provide support for climate4R packages is very small and our time for support is limited. We don't necessarily have the capacity for long, open-ended user support. Please follow these basic guidelines before posting:

  • Introduce the problem before you post any code
  • Help others reproduce the problem
  • Avoid sending the same question to multiple places

These posting guidelines at stackoverflow provide further recommendations on how to make a good question. If questions are kept short, specific and direct, there's a greater chance that someone will take on the ticket.


An R Framework for Climate Data Access and Post-processing



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