This data release contains historical and future climate SnowModel (Liston and Elder, 2006; Liston and others, 2020; Liston, 2020) simulation outputs on a 90-meter (m) geospatial grid for a 216-kilometer (km) x 327-km model domain in the Upper Snake River Basin. The historical simulation (control, CTL) was run from water years 1981 to 2020 using the CONUS404 meteorology dataset (Rasmussen and others, 2023) and the future climate simulation was run from water years 1981 to 2020 using the CONUS404 pseudo global warming meteorology dataset (PGW, Xue and others, 2024). CONUS404 PGW was produced from CONUS404 using monthly perturbations in air temperature and precipitation to represent mid-century future conditions (Xue and others, 2024). The simulation encompasses key watersheds within the region and uses SnowModel to estimate the snow water resources and hydrometeorology across the simulation domain. Simulated daily outputs provided in this data release include (1) end of day snow water equivalent (swed), (2) total liquid water supplied to the soil-snow or soil-air interface either from snowmelt or rainfall (roff), (3) mean air temperature (tair), (4) total precipitation (prec), (5) total solid precipitation (spre), (6) total melted snow either held in the snowpack or drained (smlt), (7) end of day snow depth (snod), and (8) total surface snow sublimation (ssub).
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