Tracer transport through seepage lakes

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Residence times of tracers in rectangular seepage lakes with wind-driven circulation are investigated in this paper. The key dimensionless parameters are DTW=qL2 T and VW=qLL, in which DT is the diffusion coefficient transverse to the wind direction, W is the dimension of the lake aligned with the direction of groundwater inflow/outflow, q is the specific discharge of groundwater entering and leaving the lake, LL and LT are the lake dimensions in the wind direction and transverse to the wind direction, respectively, and V is the wind speed. The well-mixed approximation in rectangular lakes is reasonable when DTW=qL2 T > 1 and VW=qLL » 1. Under these conditions, tracer particles are distributed uniformly over the outflow surface, and the probability distribution of tracer residence times can be estimated theoretically without the need to develop a numerical mixing model for the lake.

Original languageEnglish (US)
Article number06016004
JournalJournal of Hydrologic Engineering
Volume21
Issue number7
DOIs
StatePublished - Jul 1 2016

    Fingerprint

Keywords

  • Lakes
  • Mixing
  • Residence times
  • Tracer
  • Transport

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Water Science and Technology
  • Civil and Structural Engineering

Cite this