Fig. 5: Influence of individual and co-occurring modes of variability on regional drought characteristics. | npj Climate and Atmospheric Science

Fig. 5: Influence of individual and co-occurring modes of variability on regional drought characteristics.

From: Amplified risk of spatially compounding droughts during co-occurrences of modes of natural ocean variability

Fig. 5

Box plots represent the distribution of a drought area and b drought intensity across a subset of SREX regions with the largest effects of natural variability modes during seasons with neutral conditions, individual occurrences of natural variability modes (AtlNiño, TNA−, IOD+, and Niño3.4+), and co-occurring conditions (Niño3.4+/IOD+, Niño3.4+/AtlNiño-, and Niño3.4+/TNA), noted above each boxplot, from the CESM preindustrial simulation. Here, we show a subset of six SREX regions which are significantly affected by these modes of natural variability. Gray arrows indicate significant differences in the mean of distribution of drought area and intensity corresponding to various conditions relative to neutral conditions at 5% significance level. Green arrows indicate significant differences in the mean of distributions between co-occurring and Niño3.4+ conditions at 5% significance level. Black dots show the mean of the distribution in each boxplot.

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