Validation of spatial variability of snowpack thickness and density obtained with GPR and TDR methods

► We use GPR and TDR to map snow depth and spatial variability. ► Tests were performed at high elevation with irregular snow deposition. ► We map the snow layering and observe seasonal variability of snow density. ► Results point out the presence of soft and dense snow in the range between 200 to 600 kg/m3. ► We demonstrate the suitability of the methods with respect to hand probe survey.