Tide-induced groundwater head fluctuation in coastal multi-layered aquifer systems with a submarine outlet-capping

Guo, Qiaona; Li, Hailong; Boufadel, Michel C.; Xia, Yuqiang; Li, Guohui

doi:10.1016/j.advwatres.2007.01.003

Cited by 57 publications

(27 citation statements)

References 12 publications

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“…Although a variety of relatively sophisticated analytical as well as semi-numerical tideaquifer interaction models are now available for single and multi-layer aquifer systems considering the effect of beach slope, aquifer leakage, density differences, varying tidal signals, leaky layer's elastic storage and submarine outlet-capping (e.g., Nielsen 1990;Li and Chen 1991;Townley 1995;Sun 1997;Jiao and Tang 1999;Trefry 1999;Li and Barry 2000;Li et al 2000a, b;2002b, c;Jiao 2001, Wang andTsay 2001;Li and Jiao 2001a, b;2002a, b;2003a, b;Su et al 2003;Teo et al 2003;Jeng et al 2002Jeng et al , 2005Chuang and Yeh 2007;Li et al 2006;Guo et al 2007;Li et al 2007a, b;Ren et al 2007;Xia et al 2007), simple analytical one-dimensional tide-aquifer interaction models such as Jacob and Ferris models are commonly used to help understand and analyze the behavior of coastal aquifer systems (Trefry and Bekele 2004) that is of interest in the present study. In a homogeneous, isotropic, semi-infinite, confined coastal aquifer system, the one-dimensional transient propagation of sinusoidal waves due to tides into the aquifer system is described by (Ferris 1951;Todd 1980):…”

Section: Tide-aquifer Interaction Modelmentioning

confidence: 98%

“…As the Ferris/Jacob models are greatly simplified representation of actual complex groundwater dynamics, other possible reasons for the amplitude-lag inconsistencies could be vertical flows, anisotropy, beach slopes, variable aquifer thickness and nonlinearities associated with capillarity and density-driven flow (Trefry and Bekele 2004). Recently, Guo et al (2007), Li et al (2007a), Ren et al (2007), and Xia et al (2007) have attributed this inconsistency to the vertical leakage through the overlying semi-permeable layer and/or the effect of confined aquifer's submarine outlet-capping (i.e., the submarine outcrop of the confined aquifer is covered by a thin layer of seabed sediments such as silt, fine sand, clay, and organic sediments). On the whole, however, as far as the estimation of coastal aquifer parameters is concerned, the time lag method at best can be used for a back of envelope computation in preliminary studies.…”

Section: Confined Aquifer Sitesmentioning

confidence: 99%

“…Thus, adequate and reliable aquifer parameters are key to the sustainable management of vital groundwater resources. There are several methods for determining the hydraulic parameters of aquifer systems such as pumping-test or slug-test data analysis (e.g., Freeze and Cherry 1979;Todd 1980;Batu 1998;Butler 1998;Fetter 2000), numerical modeling (e.g., Yeh 1986;Pandit et al 1991;Sun 1994), floodwaveresponse technique (e.g., Pinder et al 1969;Reynolds 1987;Jha et al 2004), and tidal response technique (e.g., Jacob 1950;Ferris 1951;Carr and van Der Kamp 1969;Nielsen 1990;Erskine 1991;Pandit et al 1991;Millham and Howes 1995;Townley 1995;Trefry and Johnston 1998;Shih 1999;Fakir and Razack 2003;Li and Jiao 2003a, b;Teo et al 2003;Trefry and Bekele 2004;Chuang and Yeh 2007;Li et al 2006;Guo et al 2007;Li et al 2007a, b;Ren et al 2007;Xia et al 2007), among others. Out of these methods, the pumping-test data analysis is very popular and is deemed as the standard method to date.…”

Section: Introductionmentioning

confidence: 99%

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Hydraulic Parameters of Coastal Aquifer Systems by Direct Methods and an Extended Tide–Aquifer Interaction Technique

Jha

Namgial

Kamii

et al. 2008

Water Resour Manage

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Adequate and reliable parameters are key to the sustainable management of vital groundwater resources. Present study focuses on the evaluation of direct methods (tidal efficiency and time lag methods) and an extended tide-aquifer interaction technique for determining the hydraulic parameter of coastal unconfined and confined aquifer systems. The hydraulic diffusivities of unconfined and confined aquifer systems were estimated using the tidal efficiency and time lag methods as well as they were optimized using the tide-aquifer interaction model and the Levenberg-Marquardt optimization technique. The hydraulic diffusivities were optimized by the Levenberg-Marquardt technique following two approaches: lumped tidal component approach and multi-tidal component approach. The effect of spring and neap tidal data on parameter estimates was also analyzed. The tideaquifer interaction data for two unconfined sites and three confined sites were used in this study. For all the five sites under study, the aquifer hydraulic diffusivities based on the time lag method were found to be much larger (2 to 14 fold for the unconfined sites and 5 to 8 fold for the confined sites) than those based on the tidal efficiency method. The analysis of the optimization results indicated that the hydraulic diffusivities following "multi-tidal component approach" are more reliable and accurate for both unconfined and confined aquifers than those obtained following "lumped tidal component approach". Consequently, the use of "multi-tidal component approach" is strongly recommended for the determination of aquifer parameters by the tide-aquifer interaction technique. Furthermore, the tideinteraction data corresponding to spring and neap tidal events were found to significantly affect the aquifer diffusivities yielded by the tide-aquifer interaction technique. It is concluded that a judicious use of tide-aquifer interaction technique is indispensable for the reliable estimates of hydraulic parameters of coastal aquifer systems.

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Section: Tide-aquifer Interaction Modelmentioning

confidence: 98%

Section: Confined Aquifer Sitesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hydraulic Parameters of Coastal Aquifer Systems by Direct Methods and an Extended Tide–Aquifer Interaction Technique

Jha

Namgial

Kamii

et al. 2008

Water Resour Manage

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“…Most previous investigations concerned with the modeling of the interactions between surface water with beach groundwater focused on tide-induced watertable fluctuations only, neglecting the high-frequency oscillations (Nielsen,[10]; Baird and Horn, [11]; Li et al, [12]; Guo et al [13]). Traditionally, modeling of the groundwater response to oceanic fluctuations has been based on the Boussinesq approximation of the groundwater flow equation, which assumes negligible vertical flow (Li et al, [9]).…”

mentioning

confidence: 99%

Wave-induced water table fluctuations, sediment transport and beach profile change: Modeling and comparison with large-scale laboratory experiments

Bakhtyar

Brovelli

Barry

et al. 2011

Coastal Engineering

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Coastal groundwater systems can have a considerable impact on sediment transport and foreshore evolution in the surf and swash zones. Process-based modeling of wave motion on a permeable beach taking into account wave-aquifer interactions was conducted to investigate the effects of the unconfined coastal aquifer on beach profile evolution, and wave shoaling on the watertable. The simulation first dealt with wave breaking and wave runup/rundown in the surf and swash zones. Nearshore hydrodynamics and wave propagation in the cross-shore direction were simulated by solving numerically the two-dimensional Navier-Stokes equations with a k-ε turbulence closure model and the Volume-Of-Fluid technique. The hydrodynamic model was coupled to a groundwater flow model based on SEAWAT-2000, the latter describing groundwater flow in the unconfined coastal aquifer. The combined model enables the simulation of wave-induced watertable fluctuations and the effects of infiltration/exfiltration on nearshore sediment transport. Numerical results of the coupled ocean/aquifer simulations were found to compare well with experimental measurements. Wave breaking and infiltration/exfiltration increase the hydraulic gradient across the beachface and enhance groundwater circulation inside the porous medium. The large hydraulic head gradient in the surf zone leads to infiltration across the beachface before the breaking point, with exfiltration taking place below the breaking point. In the swash zone, infiltration occurs at the upper part of the beach and exfiltration at the lower part. The simulations confirm that beaches with a low watertable tend to be accreted while those with a high watertable tend to be eroded.

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“…Li and Jiao (2003a, b) used analytical solutions to detect the tide-induced seawatergroundwater circulation in a leaky multi-layered coastalaquifer system. Guo et al (2007) developed an analytical solution to study tide-induced groundwater-level fluctuation in multi-layered coastal-aquifer systems with a submarine outlet-capping. Guo et al (2010) derived a solution in a twozone aquifer to evaluate groundwater responses to tidal fluctuation in coastal regions affected by land reclamation.…”

Section: Introductionmentioning

confidence: 99%

Analysis of groundwater-level fluctuation in a coastal confined aquifer induced by sea-level variation

Liu

Chen

et al. 2012

Hydrogeol J

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Groundwater responses to tide fluctuations in different hydrogeological situations have been investigated for many years. Various solutions have been derived using the assumption that tides are composed of sinusoidal components, neglecting non-periodic variables. This approach has resulted in the introduction of some inaccuracy in predictions of groundwater responses to sea-level variation. To resolve this problem, this study used the Fourier sine transform method to derive an analytical solution based on the measured sea-level boundary. Compared with an analytical solution based on a sinusoidal assumption and a numerical solution generated by MODFLOW, this solution provided better performance in groundwater-level prediction in a coastal confined aquifer in Zhuhai City, China. The hydrogeological parameters estimated by the three aforementioned methods fitted well with those estimated by field surveys and pumping tests. The introduced analytical solution not only reflects the physical mechanisms of tide-induced groundwater-level fluctuation, but also reveals the non-periodic fluctuation of groundwater level caused by sea-level variation. This solution may also be used to evaluate groundwater responses to random mechanical stresses.

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Tide-induced groundwater head fluctuation in coastal multi-layered aquifer systems with a submarine outlet-capping

Cited by 57 publications

References 12 publications

Hydraulic Parameters of Coastal Aquifer Systems by Direct Methods and an Extended Tide–Aquifer Interaction Technique

Hydraulic Parameters of Coastal Aquifer Systems by Direct Methods and an Extended Tide–Aquifer Interaction Technique

Wave-induced water table fluctuations, sediment transport and beach profile change: Modeling and comparison with large-scale laboratory experiments

Analysis of groundwater-level fluctuation in a coastal confined aquifer induced by sea-level variation

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