Fig. 4: Relationship between the December–March snow cover and April–May soil moisture.
From: Winter snow as a skillful indicator for spring wildfire in Northeast Asia

Regression coefficients of the normalized December–March snow water equivalent and snow depth upon the April–May soil moisture (SM) derived from the CPC (a) and GLDAS (b) datasets, respectively. (c) and (d) represents the temporal correlation between the soil moisture and snow water equivalent (SWE) and snow depth (SD), respectively. In (a) and (b), contours represent the soil water content anomalies associated with the snow depth and excluding the spring precipitation (PRCP). Only values significant at the 0.05 level are shown.