Figure S3 Response of latent heat flux to inter-product diffuse fraction spread. Associations between latent heat flux and diffuse fraction (k d) across different land model simulations forced using k d from the six products (NCEP/NCAR, NOAA-CIRES-DOE, ERA5, MERRA-2, CERES, and CAM) considered in the present study for (a) arid climate, (b) temperate climate, (c) boreal climate, and (d) polar climate. The lines of best fit and the linear regression equations, with coefficient of determination r 2 and p-values are noted. For temperate climate, (a) logarithmic fit and the associated equation is also noted (in red). The vertical error bars show the inter-annual standard error for the 10-year period.