Fig. 2: Pre-season heatwaves alter the PDT-DFS based on the satellite-derived datasets. | Nature Communications

Fig. 2: Pre-season heatwaves alter the PDT-DFS based on the satellite-derived datasets.

From: Drivers of the pre-season drought thresholds triggering earlier autumn foliar senescence in the Northern Hemisphere

Fig. 2

a Spatial patterns of probabilities between daytime heatwaves and the PDT-DFS. b Spatial patterns of probabilities between nighttime heatwaves and the PDT-DFS. Bar charts in a, b represent the density distribution of spatial data. Vertical dashed lines of bar charts in a, b represent median values of the probability range. c Pearson correlation coefficients between drought thresholds and the compound event probability were calculated. STImax of the transverse axis in (c) represents the compound event probability calculated by STImax and the drought indices. STImin of the transverse axis in c represents the compound event probability calculated by STImin and the drought indices. 10th to 40th on the longitudinal axis in c represent the PDT-DFS for <10% to <40% quantiles. “** ” in c represents the correlation coefficient was significant at p < 0.01. The statistical significance of the correlation coefficients was assessed using a two-tailed t-test. No adjustments for multiple comparisons were made. Source data are provided as a Source Data file.

Back to article page