Fig. 1: Present-day drought variability.
From: Past megadroughts in central Europe were longer, more severe and less warm than modern droughts
a Self-calibrated Palmer Drought Severity Index (scPDSI) for summer 201850 and (b) Temporal evolution of the percentage area of central Europe affected by droughts for three drought severity categories: moderate (white), severe (gray) and extreme (dark gray). Moderate drought is defined as −3 < scPDSI ≤ −2; severe drought is defined as −4 < scPDSI ≤ −3 and severe drought is defined as scPDSI ≤ −4.
