Fig. 2: Interannual trends and seasonal variations in the annual occurrence of extreme and compound extreme events during 2002–2023. | npj Natural Hazards

Fig. 2: Interannual trends and seasonal variations in the annual occurrence of extreme and compound extreme events during 2002–2023.

From: Divergent trends in demographic and socioeconomic inequalities of global wildfire and compound hazard exposures

Fig. 2

A–H The spatial distributions of interannual variation trends. The bar charts above each map illustrate the total number of global event days per year. Red, blue, and gray bars represent significant increasing trends, significant decreasing trends, and insignificant trends, respectively, as indicated by the linear slope. The values in the bottom right corner represent the global interannual trend rate derived from linear regression. The symbols in parentheses denote the results of the Mann–Kendall (MK) test, where ↑, ↓, and – represent increasing trends, decreasing trends, and no trend, respectively. An asterisk (*) denoting statistical significance (p < 0.05). The maps below depict the spatial distributions of interannual trend rates; only grid cells with statistically significant linear trends (p < 0.05) are shown. H presents the multi-year mean frequencies (represented by the total number of day-grids where events occurred) across seasons. Grid colors reflect the relative frequency ranking across the four seasons, from the least to the most frequent. I The interannual trend rates for different seasons. DJF, MAM, JJA, and SON represent December-January-February, March-April-May, June-July-August, and September-October-November, respectively, corresponding to boreal winter, spring, summer, and autumn.

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