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Table 3

Correlation between the nine explanatory variables constructed for the model and between snow density (y) and the covariates

CovariateDescriptionyx1x2x3i4x5x6x7x8x9
x1 Snow depth 0.48 1.00         
x2 Snow age (DOY) 0.39 0.25 1.00        
x3 Elevation (masl) 0.20 0.39 0.00 1.00       
x4 Degree days when Tt >0 °C 0.16 −0.05 0.40 −0.30 1.00      
x5 Wind days when Tt < 0 °C, W > 2 m/s 0.24 0.21 0.42 0.32 −0.06 1.00     
x6 Snowfall when W > 0 m/s 0.29 0.20 0.23 0.34 −0.02 0.53 1.00    
x7 Ratio snow precipitation −0.05 0.08 0.09 0.34 −0.53 0.15 0.09 1.00   
x8 Ratio mixed precipitation 0.07 −0.04 −0.09 −0.17 0.34 −0.02 0.08 −0.75 1.00  
x9 Ratio rain precipitation 0.03 −0.08 0.03 −0.35 0.60 −0.19 −0.19 −0.69 0.33 1.00 
CovariateDescriptionyx1x2x3i4x5x6x7x8x9
x1 Snow depth 0.48 1.00         
x2 Snow age (DOY) 0.39 0.25 1.00        
x3 Elevation (masl) 0.20 0.39 0.00 1.00       
x4 Degree days when Tt >0 °C 0.16 −0.05 0.40 −0.30 1.00      
x5 Wind days when Tt < 0 °C, W > 2 m/s 0.24 0.21 0.42 0.32 −0.06 1.00     
x6 Snowfall when W > 0 m/s 0.29 0.20 0.23 0.34 −0.02 0.53 1.00    
x7 Ratio snow precipitation −0.05 0.08 0.09 0.34 −0.53 0.15 0.09 1.00   
x8 Ratio mixed precipitation 0.07 −0.04 −0.09 −0.17 0.34 −0.02 0.08 −0.75 1.00  
x9 Ratio rain precipitation 0.03 −0.08 0.03 −0.35 0.60 −0.19 −0.19 −0.69 0.33 1.00 
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