Fig. 5: El Niño (La Niña) makes dry extremes more likely in the northern Amazon (in the Gran Chaco).
From: South America is becoming warmer, drier, and more flammable
Pearson correlation between the number of days per year with concurring warm, dry, and flammable conditions (i.e., dry compound extremes) and the corresponding annual SST anomalies in the: (a) Niño 1+2 Region, and (b) Niño 3.4 Region. Stippling indicates statistical significance (p value: 0.05). The number of warm, dry, and flammable days per year were derived (see “Methods”) from daily estimates from the ERA5 dataset over the period 1997–2022. SST anomalies in the Niño Regions come from the Climate Prediction Center (CPC), part of the National Oceanic and Atmospheric Administration (NOAA), available at https://www.cpc.ncep.noaa.gov/data/indices/wksst8110.for. Plots were generated by using Python’s Matplotlib Library82.
