These drought risk projection products capture projected risk of drought across the US, Canada and Mexico using well-established drought monitoring metrics. These risk maps reflect the future risk from drought across the region at decadal time steps for Shared Socioeconomic Pathway SSP5-8.5.
These maps use future CMIP6-based projections of the Standardized Precipitation-Evapotranspiration
Index (SPEI) to calculate likely changes to drought conditions across the region into the future.
The spatial scale for this dataset is 4 km/pixel and data is available for the years 2030 - 2090 (where windows centered around the year are used to calculate the projected drought conditions).
Both drought probabilities (between 0-1) and rescaled drought index values (between 0-100) are provided for the combinations of SSP scenario and time horizon.
This version makes a minor change to the previous version (v1.0) to improve coverage of the drought projection maps over coastline areas.