Tracer Transport through Seepage Lakes
Publication: Journal of Hydrologic Engineering
Volume 21, Issue 7
Abstract
Residence times of tracers in rectangular seepage lakes with wind-driven circulation are investigated in this paper. The key dimensionless parameters are and , in which is the diffusion coefficient transverse to the wind direction, is the dimension of the lake aligned with the direction of groundwater inflow/outflow, is the specific discharge of groundwater entering and leaving the lake, and 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 and . 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.
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References
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© 2016 American Society of Civil Engineers.
History
Received: Sep 4, 2015
Accepted: Jan 8, 2016
Published online: Mar 17, 2016
Published in print: Jul 1, 2016
Discussion open until: Aug 17, 2016
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