Fig. 2: Summer vegetation lagged responses to spring compound climate conditions.
From: Regional asymmetry in the response of global vegetation growth to springtime compound climate events

a Grid-based partial correlations between yearly spring CWD climate conditions and summer NDVI (a proxy for vegetation growth) during the period 1981–2015, computed based on partial correlation analysis (see “Methods”). b The same as a, but for spring CCD climate conditions. Absolute values of the partial correlation coefficients (r) correspond to significance levels of p = 0.2 (r = 0.22), p = 0.1 (r = 0.28), or p = 0.05 (r = 0.33). For each map, frequency histograms show the areal coverage corresponding to positive and negative correlations. Light gray areas, i.e. cropland, urban, barren, and permanent snow, and ice, are not included in the analysis.