Tag Archives: SPI

SPEIbase: A Global 0.5° gridded SPEI dataset

We have just made public a global drought dataset based on the SPEI (Standardized Precipitation-Evapotranspiration Index), for the period 1901-2006. I’m not giving much information here, because all the details are described in the SPEI base web site.

The standardised precipitation-evapotranspiration index (SPEI)

This post is just to mention our recent papers devoted to describing a new drought index, the Standardised Precipitation-Evapotranspiration Index (SPEI). In the SPEI web site we discuss the motivation for a new index, describe the calculation process and give some examples. A software, SPEIcalc, has been created to automatically calculate the SPEI over a […]