Extended Data Fig. 2: The best model for each pixel across CONUS.

a There are three models employed: linear (blue), quadratic (yellow), and logistic (red) models. The best model is defined as the one with the minimum Akaike Information Criterion (AIC). The linear model is the best for 69% of pixels across CONUS. b-c The (b) correlation between GPP anomaly and PDSI and (c) the corresponding significance (p < 0.05, two-sided t test). 60% of the available pixels present significant correlations between GPP anomaly and PDSI. d-f The change in sensitivity (Δk) for severe (d) droughts, (e) fires, and (f) insect outbreaks using the significant pixels in panel c. The results are comparable to those using all available pixels shown in Fig. 1.