Description
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.
Unlike the SPI, the SPEI captures the main impact of increased temperatures on water demand.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Agroclimate Interactive Maps (French) | HTML | Open resource | |
| Agroclimate Interactive Maps (English) | HTML | Open resource | |
| Pre-packaged GeoTIF files (No linguistic component) | Unknown | Open resource | |
| Data Product Specification (English) | Open resource | ||
| Using AAFC Climate Services (English) | Open resource | ||
| Data Product Specification (French) | Open resource | ||
| Using AAFC Climate Services (French) | Open resource | ||
| Standardized Precipitation Evapotranspiration Index (SPEI) | Ersi REST | Open resource | |
| Standardized Precipitation Evapotranspiration Index (SPEI) | Ersi REST | Open resource |