Figure 4
From: Climatic and environmental aspects of the Mongol withdrawal from Hungary in 1242 CE

European drought variability.
Spatial field reconstruction of June-August (JJA) drought anomalies (°C with respect to the 1961–1990 climatology) from 1230–1249 CE14. Maps representing the self-calibrated Palmer Drought Severity Indices (scPDSI) at a spatial resolution of one-half-degree longitude by latitude are based on the OWDA, which reflects regional soil moisture conditions between dryness (−6; brown) and wetness (6; green). All maps were reproduced and modified from18.