Extended Data Fig. 8: Relative contributions of SM and VPD to TROPOMI SIF in regions where they are deemed comparably equivalent.
From: When and where soil dryness matters to ecosystem photosynthesis

The global pattern of the ratio between absolute causal Shapley values for SM and VPD across water-limited and energy-limited regions where the contributions of SM and VPD are deemed comparatively equivalent. These regions are defined as areas where the absolute causal Shapley value for SM (VPD) exceeds that for VPD (SM) by no more than 20%. Locations and categories of the FLUXNET2015 sites used in this study are indicated in the figure. Latitude and longitude are in degrees.