Fig. 6
From: Spatial variation of the rain–snow temperature threshold across the Northern Hemisphere
Average Northern Hemisphere snowfall frequency and standard deviation. a Average Northern Hemisphere snowfall frequency as computed by the 18 different methods applied to 27 years of MERRA-2 reanalysis data. Shading represents the data included in each method (T—air temperature; H—humidity via RH, Tw, or Td; and P—pressure). b The standard deviation of snowfall frequency plotted against average snowfall frequency for each MERRA-2 grid cell for the 18 precipitation phase methods. Shading represents the average Ts for that grid cell during precipitation events. c Density plot showing the distribution of snowfall frequency standard deviations
