Water availability and droughts

Standardized Precipitation Evapotranspiration Index (SPEI)

->Go to Τotal water impact

This index uses precipitation and potential evapotranspiration to calculate the impact of drought on the availability of water resources.

Please fill the following fields and select "Submit" to see the results.

SPEI scale
Class Value
Extreme wetSPEI ≥ 2
Severe wet1.5 ≤ SPEI < 2
Moderate wet1 ≤ SPEI < 1.5
Moderate drought-1.5 < SPEI ≤ -1
Severe drought-2 < SPEI ≤ -1.5
Extreme droughtSPEI ≤ -2
# Date SPEI