This study uses a physically based snow-cover model to examine the influence of energy fluxes on northern Great Plains snow-depth decreases. Over a 25-year period during the month of February, the model is run for 19 stations distributed across
the region. The model estimates of radiative and convective fluxes along with temperature and dew point are compared with changes in the snow depth to determine the key factor or factors associated with midwinter snow-depth changes and its variability