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Baseflow

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Baseflow (also called drought flow, groundwater recession flow, low flow, and sustained or fair-weather runoff) is the portion of streamflow that comes from "the sum of deep subsurface flow and delayed shallow subsurface flow". It should not be confused with groundwater flow. [1]

Certain parameters of baseflow, such as the mean residence time and the baseflow recession curve, can be useful in describing the mixing of waters (such as from precipitation and groundwater) and the level of groundwater contribution to streamflow in catchments. [2]

  1. ^ Kendall and McDonnell, 1998. Isotope Tracers in Catchment Hydrology. Elsevier [1], accessed July 10th, 2009
  2. ^ Vitvar et al., 2002. Estimation of baseflow residence times in watersheds from the runoff hydrograph recession: method and application in the Neversink watershed, Catskill Mountains, New York. Hydrol. Processes 16 1871-1877[2]