A spatially explicit model of long-term mean annual streamflow for the conterminous United States

The data release documents the development of a hybrid (statistical-mechanistic) SPARROW (SPAtially Referenced Regression On Watershed attributes) model of long-term mean annual streamflow applied to streams and rivers of conterminous United States. The model coupled previous catchment-scale (1-km) water balance predictions of “natural” unit-area runoff, which are inclusive of major water cycling processes, with additional explanatory variables (e.g., soils, vegetation, land use, topography, water losses in streams and reservoirs) that account for the effects of natural and cultural water supply and demand processes that operate over large spatial scales and explain streamflow variability across the conterminous United States river [...]