Fig. 4: Fire weather and precipitation trends and change points 1970–2020.
From: Global increase in wildfire potential from compound fire weather and drought
a Theil-Sen slope for normalised annual antecedent precipitation anomalies, \(P^{\prime} /{\sigma }_{{P}_{a}}\) (dashes indicate anomalies). b As in a but for annual numbers of fire weather days, FWDf. Hatching in (a) and (b) indicates a statistically significant result for the Mann-Kendall test for monotonic trends. c Pettitt test year of potential step change in annual numbers of fire weather days FWDf. d Pettitt test step change magnitude for FWDf. Hatching in (d) indicates statistical significance for the Pettitt test.
