Fig. 6: Fire weather, drought and burned area in western North America (WNA) and eastern Australia (EAU), and related climate modes.
From: Global increase in wildfire potential from compound fire weather and drought
Top Fire weather events, \({{{{\rm{FWD}}}}}_{3}^{r} \,>\, {\mu }_{{{{{\rm{FWD}}}}}_{3}^{r}}+{\sigma }_{{{{{\rm{FWD}}}}}_{3}^{r}}\) (rectangles); burned area events, \({{{{\rm{BA}}}}}_{3}^{r} \,>\, {\mu }_{{{{{\rm{BA}}}}}_{3}^{r}}+{\sigma }_{{{{{\rm{BA}}}}}_{3}^{r}}\) (open and filled circles); and drought events, \({P}_{12}^{r} \,<\, {\mu }_{{P}_{12}^{r}}-{\sigma }_{{P}_{12}^{r}}\) (vertical lines with cross markers). Years in which there were at least three fire weather events (FWE) in a region are marked with a triangle or square below. WNA results are in blue, EAU results are in orange, and concurrent results are in pink. Bottom The Ni\(\tilde{{{{\rm{n}}}}}\)o3.4 index, the dipole mode index (DMI), the southern annular mode index (SAM), the Pacific-North America pattern index (PNA) and the Gulf of Alaska ridge index (GAR), averaged over the three months indicated by the last three letters.
