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Tracer Transport through Seepage Lakes

Chin, David A.

Residence times of tracers in rectangular seepage lakes with wind-driven circulation are investigated in this paper. The key dimensionless parameters are $D_{T} W / q L_{T}^{2}$ and $V W / q L_{L}$ , in which $D_{T}$ 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, $L_{L}$ and $L_{T}$ 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 $D_{T} W / q L_{T}^{2} > 1$ and $V W / q L_{L} ≫ 1$ . 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.

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Tracer Transport through Seepage Lakes

Chin, David A.

Residence times of tracers in rectangular seepage lakes with wind-driven circulation are investigated in this paper. The key dimensionless parameters are $D_{T} W / q L_{T}^{2}$ and $V W / q L_{L}$ , in which $D_{T}$ 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, $L_{L}$ and $L_{T}$ 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 $D_{T} W / q L_{T}^{2} > 1$ and $V W / q L_{L} ≫ 1$ . 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.

Tracer Transport through Seepage Lakes

Chin, David A.

Residence times of tracers in rectangular seepage lakes with wind-driven circulation are investigated in this paper. The key dimensionless parameters are $D_{T} W / q L_{T}^{2}$ and $V W / q L_{L}$ , in which $D_{T}$ 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, $L_{L}$ and $L_{T}$ 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 $D_{T} W / q L_{T}^{2} > 1$ and $V W / q L_{L} ≫ 1$ . 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.

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Title:

Tracer Transport through Seepage Lakes

Contributors:

Chin, David A. (author)

Published in:

Journal of Hydrologic Engineering ; 21

Publication date:

2016-03-17

ISSN:

1084-0699 , 1943-5584

DOI:

https://doi.org/10.1061/(ASCE)HE.1943-5584.0001383

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

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