Articles | Volume 25, issue 1
Hydrol. Earth Syst. Sci., 25, 237–255, 2021
https://doi.org/10.5194/hess-25-237-2021
Hydrol. Earth Syst. Sci., 25, 237–255, 2021
https://doi.org/10.5194/hess-25-237-2021

Research article 15 Jan 2021

Research article | 15 Jan 2021

Hillslope and groundwater contributions to streamflow in a Rocky Mountain watershed underlain by glacial till and fractured sedimentary bedrock

Sheena A. Spencer et al.

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Short summary
We used unique chemical signatures of precipitation, hillslope soil water, and groundwater sources of streamflow to explore seasonal variation in runoff generation in a snow-dominated mountain watershed underlain by glacial till and permeable bedrock. Reacted hillslope water reached the stream first at the onset of snowmelt, followed by a dilution effect by snowmelt from May to June. Groundwater and riparian water were important sources later in the summer. Till created complex subsurface flow.