Hydrology and Earth System Sciences
www.hydrol-earth-syst-sci.net
1027-5606
1607-7938
13
2
2009
10.5194/hess-13-217-2009
http://www.hydrol-earth-syst-sci.net/13/217/2009/
http://www.hydrol-earth-syst-sci.net/13/217/2009/hess-13-217-2009.html
http://www.hydrol-earth-syst-sci.net/13/217/2009/hess-13-217-2009.pdf
217
228
2009-02-23
Hydrodynamic dispersion characteristics of lateral inflow into a river tested by a laboratory model
P. Y. Chou
G. Wyseure
Guido.Wyseure@ees.kuleuven.be
Dept. of Earth and Environmental Science, Division Soil and Water Management, Katholieke Universiteit Leuven, Celestijnenlaan 200 E, 3001, Heverlee, Belgium
Groundwater and river-water have a different composition and interact in and
below the riverbed. The riverbed-aquifer flux interactions have received
growing interest because of their role in the exchange and transformation of
nutrients and pollutants between rivers and the aquifer. In this research
our main purpose is to identify the physical processes and characteristics
needed for a numerical transport model, which includes the unsaturated
recharge zone, the aquifer and the riverbed. In order to investigate such
lateral groundwater inflow process, a laboratory J-shaped column experiment
was designed. This study determined the transport parameters of the J-shaped
column by fitting an analytical solution of the convective-dispersion
equation for every flux on individual segments to the observed breakthrough
curves of the resident concentration, and by inverse modelling for every
flux simultaneously over the entire flow domain. The obtained
transport-parameter relation was tested by numerical simulation using HYDRUS
2-D/3-D.
<br><br>
Four steady-state flux conditions (i.e. 0.5 cm hr<sup>−1</sup>, 1 cm hr<sup>−1</sup>,
1.5 cm hr<sup>−1</sup> and 2 cm hr<sup>−1</sup>) were applied,
transport parameters including pore water velocity and dispersivity were
determined for both unsaturated and saturated sections along the column.
Results showed that under saturated conditions the dispersivity was fairly
constant and independent of the flux. In contrast, dispersivity under
unsaturated conditions was flux dependent and increased at lower flux. For
our porous medium the dispersion coefficient related best to the quotient of
the pore water velocity divided by the water content. A simulation model of
riverbed-aquifer flux interaction should take this into account.
Anderson, J. K., Wondzell, S. M., Gooseff, M. N., and Haggerty, R.: Patterns in stream longitudinal profiles and implications for hyporheic exchange flow at the H.J. Andrews Experimental Forest, Oregon, USA, Hydrol. Process., 19, 2931–2949, 2005.
Avila, D.: Estimation of transport parameters for breakthrough column experiments, MSc thesis, Water Resources Engineering, Vrije Universiteit Brussels and Katholieke Universiteit Leuven, Belgium, 110 pp., 2005.
Bear, J.: Dynamics of fluids in porous media, American Elsevier, New York, USA, 764 pp., 1972.
Bencala, K. E. and Walters, R. A.: Simulation of solute transport in a mountain pool-and-riffle stream – a transient storage model, Water Resour. Res., 19, 718–724, 1983.
Boano, F., Revelli, R., and Ridolfi, L.: Bedform-induced hyporheic exchange with unsteady flows, Adv. Water Resour., 30, 148–156, 2007.
Brown, L. E., Hannah, D. M., and Milner, A. M.: Spatial and temporal water column and streambed temperature dynamics within an alpine catchment: implications for benthic communities, Hydrol. Process., 19, 1585–1610, 2005.
Costa, J. L., and Prunty, L.: Solute transport in fine sandy loam soil under different flow rates, Agr. Water Manage., 83, 111–118, 2006.
Cozzetto, K., McKnight, D., Nylen, T., and Fountain, A.: Experimental investigations into processes controlling stream and hyporheic temperatures, Fryxell Basin, Antarctica, Adv. Water Resour., 29, 130–153, 2006.
Dalgaard, P.: Introductory Statistics with R, Springer-Verlag, New York, USA, 267 pp., 2004.
De Smedt, F. and Wierenga, P. J.: Solute transport through soil with nonuniform water-content, Soil Sci. Soc. Am. J., 42, 7–10, 1978.
Ge, Y. and Boufadel, M. C.: Solute transport in multiple-reach experiments: Evaluation of parameters and reliability of prediction, J. Hydrol., 323, 106–119, 2006.
Gooseff, M. N., Wondzell, S. M., Haggerty, R., and Anderson, J.: Comparing transient storage modeling and residence time distribution (RTD) analysis in geomorphically varied reaches in the Lookout Creek basin, Oregon, USA, Adv. Water Resour., 26, 925–937, 2003.
Gooseff, M. N., Anderson, J. K., Wondzell, S. M., LaNier, J., and Haggerty, R.: A modelling study of hyporheic exchange pattern and the sequence, size, and spacing of stream bedforms in mountain stream networks, Oregon, USA, Hydrol. Process., 19, 2915–2929, 2005.
Hahn, H. J.: The GW-Fauna-Index: A first approach to a quantitative ecological assessment of groundwater habitats, Limnologica, 36, 119–137, 2006.
Harvey, J. W. and Bencala, K. E.: The effect of streambed topography on surface-subsurface water exchange in mountain catchments, Water Resour. Res., 29, 89–98, 1993.
Harvey, J. W., Conklin, M. H., and Koelsch, R. S.: Predicting changes in hydrologic retention in an evolving semi-arid alluvial stream, Adv. Water Resour., 26, 939–950, 2003.
Jones, S. B., Wraith, J. M., and Or, D.: Time domain reflectometry measurement principles and applications, Hydrol. Process., 16, 141–153, 2002.
Jonsson, K., Johansson, H., and Worman, A.: Hyporheic exchange of reactive and conservative solutes in streams – tracer methodology and model interpretation, J. Hydrol., 278, 153–171, 2003.
Kazezyilmaz-Alhan, C. M. and Medina, M. A.: Stream solute transport incorporating hyporheic zone processes, J. Hydrol., 329, 26–38, 2006.
Lin, Y. C. and Medina, M. A.: Incorporating transient storage in conjunctive stream-aquifer modeling, Adv. Water Resour., 26, 1001–1019, 2003.
Lindstrom, F. T.: Pulsed dispersion of trace chemical concentrations in a saturated sorbing porous-medium, Water Resour. Res., 12, 229–238, 1976.
Malcolm, I. A., Soulsby, C., Youngson, A. F., Hannah, D. M., McLaren, I. S., and Thorne, A.: Hydrological influences on hyporheic water quality: implications for salmon egg survival, Hydrol. Process., 18, 1543–1560, 2004.
Maraqa, M. A., Wallace, R. B., and Voice, T. C.: Effects of degree of water saturation on dispersivity and immobile water in sandy soil columns, J. Contam. Hydrol., 25, 199–218, 1997.
Marion, A., Zaramella, M., and Packman, A. I.: Parameter estimation of the transient storage model for stream-subsurface exchange, J. Environ. Eng-ASCE, 129, 456–463, 2003.
Mojid, M. A., Rose, D. A., and Wyseure, G. C. L.: A transfer-function method for analysing breakthrough data in the time domain of the transport process, Eur. J. Soil Sci., 55, 699–711, 2004.
Mojid, M. A., Rose, D. A., and Wyseure, G. C. L.: Analysis of partial breakthrough data by a transfer-function method, Aust. J. Soil Res., 44, 175–182, 2006.
Moore, R. D., Sutherland, P., Gomi, T., and Dhakal, A.: Thermal regime of a headwater stream within a clear-cut, coastal British Columbia, Canada, Hydrol. Process., 19, 2591–2608, 2005.
Nützmann, G., Maciejewski, S., and Joswig, K.: Estimation of water saturation dependence of dispersion in unsaturated porous media: experiments and modelling analysis, Adv. Water Resour., 25, 565–576, 2002.
Or, D., Jones, S. B., Van Shaar, J. R., Humphries, S., and Koberstein, L.: WinTDR, Users guide, Version 6.1, available at: http://soilphysics.usu.edu/wintdr/index.htm, access: February 2005, Utah State university/ Soil Physics group, Utah, USA, 2004.
Packman, A. I. and Bencala, K. E.: Modeling surface – subsurface hydrologic interactions, in: Streams and Ground Waters, edited by: Jones, J. B., and Mulholland, P. J., Academic Press, San Diego, CA, USA, 45–80, 2000.
Padilla, I. Y., Yeh, T. C. J., and Conklin, M. H.: The effect of water content on solute transport in unsaturated porous media, Water Resour. Res., 35, 3303–3313, 1999.
Rehg, K. J., Packman, A. I., and Ren, J. H.: Effects of suspended sediment characteristics and bed sediment transport on streambed clogging, Hydrol. Process., 19, 413–427, 2005.
Ricci, C. and Balsamo, M.: The biology and ecology of lotic rotifers and gastrotrichs, Freshwater Biol., 44, 15–28, 2000.
Runkel, R. L., McKnight, D. M., and Rajaram, H.: Modeling hyporheic zone processes – Preface, Adv. Water Resour., 26, 901–905, 2003.
Šimùnek, J., Jarvis, N. J., van Genuchten, M. T., and Gardenas, A.: Review and comparison of models for describing non-equilibrium and preferential flow and transport in the vadose zone, J. Hydrol., 272, 14–35, 2003.
Šimùnek, J., Sejna, M., and van Genuchten, M. T.: The HYDRUS Software package for simulating two- and three-dimensional movement of water, heat, and multiple solutes in variably-saturated media, User manual, Version 1.0, PC Progress, Prague, Czech Republic, 173 pp., 2006.
Storey, R. G., Howard, K. W. F., and Williams, D. D.: Factors controlling riffle-scale hyporheic exchange flows and their seasonal changes in a gaining stream: A three-dimensional groundwater flow model, Water Resour. Res., 39, 1034, doi:10.1029/2002WR001367, 2003.
Toride, N., Inoue, M., and Leij, F. J.: Hydrodynamic dispersion in an unsaturated dune sand, Soil Sci. Soc. Am. J., 67, 703–712, 2003.
Valett, H. M., Fisher, S. G., Grimm, N. B., and Camill, P.: Vertical hydrologic exchange and ecological stability of a desert stream ecosystem, Ecology, 75, 548–560, 1994.
van Genuchten, M. T.: A closed-form equation for predicting the hydraulic conductivity of unsaturated soils, Soil Sci. Soc. Am. J., 44, 892–898, 1980.
van Genuchten, M. T. and Parker, J. C.: Boundary-conditions for displacement experiments through short laboratory soil columns, Soil Sci. Soc. Am. J., 48, 703–708, 1984.
Vanderborght, J. and Vereecken, H.: Review of dispersivities for transport modeling in soils, Vadose Zone J., 6, 29–52, 2007.
Wakao, N. S. and Kaguei, S.: Heat and Mass Transfer in Packed Beds, Gordon and Breach, New York, USA, 350 pp.1982.
Wondzell, S. M.: Effect of morphology and discharge on hyporheic exchange flows in two small streams in the Cascade Mountains of Oregon, USA, Hydrol. Process., 20, 267–287, 2006.
Wörman, A., Packman, A. I., Johansson, H., and Jonsson, K.: Effect of flow-induced exchange in hyporheic zones on longitudinal transport of solutes in streams and rivers, Water Resour. Res., 38, 1001, doi:10.1029/2001WR000769, 2002.
Wroblicky, G. J., Campana, M. E., Valett, H. M., and Dahm, C. N.: Seasonal variation in surface-subsurface water exchange and lateral hyporheic area of two stream-aquifer systems, Water Resour. Res., 34, 317–328, 1998.
Wyseure, G. C. L., Mojid, M. A., and Malik, M. A.: Measurement of volumetric water content by TDR in saline soils, Eur. J. Soil Sci., 48, 347–354, 1997.
Zaramella, M., Packman, A. I., and Marion, A.: Application of the transient storage model to analyze advective hyporheic exchange with deep and shallow sediment beds, Water Resour. Res., 39, 1198, doi:10.1029/2002WR001344., 2003.
Zaramella, M., Marion, A., and Packman, A. I.: Applicability of the Transient Storage Model to the hyporheic exchange of metals, J. Contam. Hydrol., 84, 21–35, 2006.