Fig. 6
From: Snow depth variability in the Northern Hemisphere mountains observed from space
Histograms of retrieval performance metrics. a–c Histograms of temporal correlation (Rt; dimensionless), mean-absolute-error (MAE; m), and mean of retrievals minus measurements (bias; m), calculated from time series of weekly snow depth measurements and corresponding Sentinel-1 retrievals, for September 2016 through August 2018. Gray histograms are calculated with all reported measurements, including zero values (Incl. SD = 0); white histograms exclude zero values (Excl. SD = 0), with SD the snow depth (m). Metrics indicate the mean value (μ) and the number of sites (N; dimensionless)
