xbioclim: Bioclimatic Variables from Monthly Climate Data

Computes the 19 standard bioclimatic variables (BIO01-BIO19) from monthly climate data following the WorldClim specification. This is an R implementation of the xbioclim C++ library, with a compiled C++ back-end exposed through Rcpp Modules.

Value

No return value; package-level documentation.

ERA5-Land monthly aggregation

In addition to the BIO01–BIO19 computation, xbioclim provides helpers to aggregate ERA5-Land hourly t2m/tp into the CHELSA-compatible monthly variables (tas, tasmax, tasmin, pr) used by the bioclim functions:

• era5_to_monthly() – single-pass hourly → monthly aggregation.

• era5_t2m_to_monthly() / era5_tp_to_monthly() – variable-specific helpers.

• era5_bioclim() / era5_bioclim_years() – end-to-end ERA5-Land → BIO pipeline.

Error and warning propagation

xbioclim mirrors the SpatMessages pattern used by the terra package. C++ routines record errors and warnings into an internal message store rather than throwing directly. R-side wrappers around C++ calls should invoke check_messages() after each call to convert any stored messages into native R conditions. Users can also inspect the store programmatically:

• bioclim_errors() / bioclim_warnings() – retrieve stored messages.

• has_error() / has_warning() – test whether messages exist.

• clear_messages() – reset the store.

See also

Useful links:

• https://alrobles.github.io/xbioclim/

• https://github.com/alrobles/xbioclim

• Report bugs at https://github.com/alrobles/xbioclim/issues

Author

Maintainer: Angel Luis Robles Fernandez a.l.robles.fernandez@gmail.com

Authors:

• Angel Luis Robles Fernandez a.l.robles.fernandez@gmail.com