Fig. 6: Multisource averages of April snow depth (1981-2021).

April average snow depth in a the MERRA2-based snow depth (SnowModel-LG) and b the CMIP6 multi-model mean (no weighting or adjusting). c Regional averages of April snow depth for individual models (colored dots) compared to the SnowModel-LG (white), with internal variability estimated from the 30-member ensemble from MPI-ESM1-2-LR. Projections of future April snow depth using a bias-adjusted average are presented for d 2 °C and e 4 °C of global warming with respect to 1850–1900.