Analysis of pumping-induced stream-aquifer interactions for gaining streams

Xun-Hong Chen

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

This paper presents analytical solutions that can be used to evaluate stream infiltration and baseflow reduction induced by groundwater pumping in nearby aquifers. Critical time, infiltration reach, and travel times can also be calculated to determine the hydraulic connectivity between the well and the stream. The critical time indicates the earliest time of reversal of hydraulic gradient occurring along the stream - aquifer interface, the infiltration reach is the stream segment where stream water recharges the aquifer, and the shortest travel time for the stream water particle to get into a pumping well is along the meridian line. The transient features of the two stream depletion components, baseflow reduction and stream infiltration, are evaluated separately. The rate of baseflow reduction can be greater than the rate of stream infiltration for a stronger gaining stream. However, for a given distance between the stream and well, a higher pumping rate or a weaker gaining stream results in higher rate of stream infiltration, although the total depletion rate is the same for different pumping rates or varied hydraulic gradient of the baseflow. When a steady-state condition is assumed for a transient flow, the rate and volume of stream infiltration can be overestimated; this overestimation can be very significant in the early stage of pumping.

Original languageEnglish (US)
Pages (from-to)1-11
Number of pages11
JournalJournal of Hydrology
Volume275
Issue number1-2
DOIs
StatePublished - Apr 25 2003

Fingerprint

aquifers
pumping
aquifer
infiltration (hydrology)
infiltration
baseflow
fluid mechanics
analysis
hydraulics
travel
travel time
transient flow
rate
connectivity
recharge
groundwater
water
well

Keywords

  • Baseflow reduction
  • Groundwater pumping
  • Induced infiltration
  • Stream depletion

ASJC Scopus subject areas

  • Water Science and Technology

Cite this

Analysis of pumping-induced stream-aquifer interactions for gaining streams. / Chen, Xun-Hong.

In: Journal of Hydrology, Vol. 275, No. 1-2, 25.04.2003, p. 1-11.

Research output: Contribution to journalArticle

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