Аннотация:The variability of the snow water equivalent (SWE) in the Northern Dvina basin was analyzed using data from route snow surveys and obtained from numerical experiments for calculating high spatial resolution (1x1°) WES using local heat/moisture exchange models SWAP and SPONSOR in the Northern Dvina basin. It is shown that the use of local models can significantly improve the description of snow cover characteristics and use them in predicting spring runoff. The differences in the spatial distribution of the areas of the maximum influence of SWE on spring runoff variability between observation and modeling data are discussed.