Simulated Snow and Meteorology Variables, Qashqadaryo Region, Uzbekistan, 1950-2023

This data release contains output from a numerical snow simulation for a 166 kilometer (km) × 160 km model domain in the Qashqadaryo region of Uzbekistan. The simulation encompasses key watersheds within the region and uses SnowModel (Liston and Elder, 2006; Liston and others, 2020; Liston, 2020) to estimate the snow water resources and meteorology across the simulation domain. The atmospheric forcing conditions used to drive SnowModel were derived from ERA-5 Land (Muñoz Sabater and others, 2019; CDS, 2023) historical meteorology data spanning from 1950-2023. SnowModel was configured to run with a spatial resolution of 100 meters and simulated outputs provided in this data release include (1) air temperature (tair), (2) precipitation (prec), (3) solid precipitation (spre), (4) snow water equivalent (swed), (5) melted snow either held in the snowpack or drained (smlt), (6) liquid water supplied to the soil-snow or soil-air interface either from snowmelt or rainfall (roff), (7) precipitation amount falling as rain (rpre), (8) snow density (sden), (9) snow depth (snod), and (10) surface snow sublimation (ssub). The simulations were conducted using the Central Asia Equal Area Projection and Model Grid (Drukker and others, 2025). Two SnowModel simulations were carried out, one with the default model parameters and a second with a spatial precipitation correction grid and air temperature and precipitation lapse rates derived from meteorology stations in Uzbekistan. The precipitation grid was developed using the simulated snow persistence from the default simulations and observed snow persistence from MODIS. 

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