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Table 1

Snow indices used in the study, separated into local (grid cell) indices and regional indices (derived from grid cell values)

 SymbolUnitDescription
Grid cell index 
 Snow cover area SCA % or km2 Percentage (%) or area (km2) of grid cell (1 km2) covered by snow 
 Snow water equivalent SWE mm Amount of water contained in the snowpack 
 Snowfall Snowfall mm/month Monthly precipitation falling as snow 
 Snow season duration days Length in days from the start to end of snow season 
Regional index 
 Snow cover extent SCE km2 Total surface covered by snow derived from the grid cell snow covered area (SCA) 
 Regional SWE regSWE mm/month Spatial average of SWE within each region 
 SymbolUnitDescription
Grid cell index 
 Snow cover area SCA % or km2 Percentage (%) or area (km2) of grid cell (1 km2) covered by snow 
 Snow water equivalent SWE mm Amount of water contained in the snowpack 
 Snowfall Snowfall mm/month Monthly precipitation falling as snow 
 Snow season duration days Length in days from the start to end of snow season 
Regional index 
 Snow cover extent SCE km2 Total surface covered by snow derived from the grid cell snow covered area (SCA) 
 Regional SWE regSWE mm/month Spatial average of SWE within each region 
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