xbioclim: Bioclimatic Variables from Monthly Climate Data

Computes the 19 standard bioclimatic variables (BIO01-BIO19) from monthly climate data. The variable set was originally proposed by Nix (1986, ISBN:978-0-644-04887-3) for the BIOCLIM modelling system and is also distributed with the CHELSA climatologies (Karger et al., 2017 <doi:10.1038/sdata.2017.122>). Provides both individual variable functions and a unified interface to compute all 19 variables at once. Designed as an R implementation of the 'xbioclim' C++ library (Robles Fernandez, 2026 <https://github.com/alrobles/xbioclimcpp>). Supports single-pixel vectors and block-based raster processing via 'terra' for memory-efficient handling of large spatial datasets. Includes helpers to transform ERA5-Land hourly reanalysis data (Muñoz-Sabater et al., 2021 <doi:10.5194/essd-13-4349-2021>) into monthly climate inputs.

Version: 1.0.3
Imports: methods, Rcpp (≥ 1.0.0)
LinkingTo: Rcpp
Suggests: parallel, sf, terra, testthat (≥ 3.0.0), knitr, rmarkdown
Published: 2026-10-05
DOI: 10.32614/CRAN.package.xbioclim (may not be active yet)
Author: Angel Luis Robles Fernandez [aut, cre]
Maintainer: Angel Luis Robles Fernandez <a.l.robles.fernandez at gmail.com>
BugReports: https://github.com/alrobles/xbioclim/issues
License: MIT + file LICENSE
URL: https://alrobles.github.io/xbioclim/, https://github.com/alrobles/xbioclim
NeedsCompilation: yes
SystemRequirements: GNU make, C++17; optionally GDAL (>= 2.0.1) with gdal-config, CUDA toolkit (>= 11.0) with nvcc for GPU acceleration
Language: en-US
Citation: xbioclim citation info
Materials: README
CRAN checks: xbioclim results

Documentation:

Reference manual: xbioclim.html , xbioclim.pdf

Downloads:

Package source: xbioclim_1.0.3.tar.gz
Windows binaries: r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries: r-release (arm64): xbioclim_1.0.3.tgz, r-oldrel (arm64): xbioclim_1.0.3.tgz, r-release (x86_64): xbioclim_1.0.3.tgz, r-oldrel (x86_64): xbioclim_1.0.3.tgz

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