A set of functions for computing potential evapotranspiration and several widely used drought indices including the Standardized Precipitation-Evapotranspiration Index (SPEI).
Santiago Beguería and Sergio M. Vicente-Serrano Maintainer: Santiago Beguería Contributors: Fergus Reig
| Package: | SPEI |
| Type: | Package |
| Version: | 1.8 |
| Date: | 2023-01-20 |
| License: | GPL version 2 or newer |
| LazyLoad: | yes |
Functions spei and spi are the workhorse of the
SPEI library. Other functions such as kern,
parglo.maxlik is an auxiliary low-level function and
will not be used directly by the typical user. Functions for computing
potential evapotranspiration are provided, too, for helping computing
the SPEI. They are: thornthwaite,
hargreaves and penman.
S.M. Vicente-Serrano, S. Beguería, J.I. López-Moreno. 2010. A Multi-scalar drought index sensitive to global warming: The Standardized Precipitation Evapotranspiration Index – SPEI. Journal of Climate 23: 1696, DOI: 10.1175/2009JCLI2909.1.