Snow Drought Risk and Susceptibility - Western United States and Southwestern Canada

View these data interactively: http://dierauer.shinyapps.io/SnowDroughtRiskThese ten files are rasters and .kmz files of snow drought risk and susceptibility over the mountain and inter-mountain regions of western United States and southwestern Canada. The snow drought risk rasters (risk_dry.asc, risk_warm.asc, risk_warm_dry.asc) correspond to the dry snow drought risk, warm snow drought risk, and warm and dry snow drought risk. Risk is calculated as the mean severity (fraction below long-term [1951-2000] peak snow water equivalent [SWE] mean) multiplied by the frequency (fraction of total years [n = 63]). Thus, snow drought risk in each raster has units of fractional deficit per year and is equal to the expected annual deficit in peak SWE for each snow drought type.The susceptibility rasters (susceptibility.asc, susceptibility_plus2degC.asc) contain the categorical ranking of temperature-related snow drought susceptibility over the mountain and inter-mountain western United States and southwestern Canada. The susceptibility.asc file represents the historical susceptibility (1951-2000) and the susceptibility_plus2degC.asc file represents the susceptibility under 2 degrees of warming (relative to 1951-2000). Raster values correspond to susceptibility rankings as follows: 0 = negligible, 1 = low, 2 = medium, 3 = high.All rasters are in ESRI Ascii (.asc) format and were created with the "raster" package in R. Resolution is 1/16 degree. Extent: xmin = -125; xmax = -100; ymin = 30; ymax = 53.For easy viewing in Google Earth, .kmz versions of the raster files are also included in this dataset.For further details, see: Dierauer, J.R., Allen, D.M., & Whitfield, P.H. Snow drought risk and susceptibility in the western United States and southwestern Canada. Water Resources Research, 55, 3076-3091. https://doi.org/10.1029/2018WR023229