Fig. 1: Maps of vegetation-drought Spearman correlations during three vegetation seasons.
From: Higher vegetation sensitivity to meteorological drought in autumn than spring across European biomes
a Spring months of growth onset, b summer months of peak growth and c autumn months of senescence, determined from an ensemble of seven vegetation indicators (NDVI, NIRv, PPI, FPAR, LAI, SIF, and GPP) and drought index SPEI. d Bar chart of the proportion of drought-susceptible areas with significant positive correlations between vegetation and SPEI in three vegetation seasons. The dot-dash lines denote the ensemble mean proportion areas of the seven variables. Inset histograms in (a–c) show the frequency (in percent of total area) of time scale distributions, with red colors denoting the time scales of maximum positive correlation between vegetation and drought, blue colors for minimum negative correlation, dark color for significant at p ≤ 0.05, and light color for non-significant (p > 0.05). Inset pie charts indicate the overall proportion of areas of correlation values.
