Standardized Precipitation Evapotranspiration Index (SPEI)
The Standardized Precipitation Evapotranspiration Index (SPEI) is computed similarly to the SPI. The main difference is that SPI assesses precipitation variance, while SPEI also considers demand from evapotranspiration which is subtracted from any precipitation accumulation prior to assessment....
Organization:
Agriculture and Agri-Food Canada
Resource Formats:
- HTML
- GeoTIF
- ESRI REST
- WMS