Fig. 5
From: A unified ensemble soil moisture dataset across the continental United States
The spatial patterns of mean soil moisture (the left column) and their spatial drivers (the right column), for (a,b) all datasets, (c,d) LSM, (e,f) RS, (g,h) RE, and (i,j) ML. The histogram plots included in the spatial maps illustrate the probability distribution of the mean soil moisture across CONUS. The feature importance of each variable in determining the spatial variability is calculated as the ratio of the mean |SHAP value| of the variable to the sum of the mean |SHAP value| of all variables. Therefore, the sum of the relative importance of all variables is equal to 100%. SD_elv denotes the standard deviation of elevation, PCT_sand represents soil sand percentage, and Dist represents the distance to the nearest coast. Details of the data sources are provided in the Methods section.
