Fig. 3: Spatial average modeled SSI has significantly declined from 1950-2013.
From: Recent decreases in snow water storage in western North America
a Spatially weighted average VIC-based annual SSI with daily precipitation and surface water inputs averaged spatially prior to the SSI calculation (purple line), and with SSI spatially averaged by grid cell after each grid cell SSI was calculated (black line); standard errors are shown with purple and black shading, respectively. Trend lines for SSI through time are shown in both cases (p < 0.01). b Average modeled decadal SSI across the study region, showing the median, interquartile range, and outliers across the 6 decades over the VIC record. Trend line indicates p < 0.05, with standard errors shown with black shading.
