Table 2 Drought severity using SPI/SPEI indices9

From: Unequal impacts of future droughts on global croplands: contributions of climate and land-use changes across different income groups

Drought severity levels

SPI/SPEI value

No drought

SPI/SPEI > -1

Moderate drought

−1.0 ≥ SPI/SPEI > −1.5

Severe drought

−1.5 ≥ SPI/SPEI > −2.0

Extreme drought

−2.0 ≥ SPI/SPEI