Coastal carbonate aquifer sensitivity to tides

Loper, David E.; Werner, Christopher L.; Chicken, Eric; Davies, Gareth; Kincaid, Todd

doi:10.1029/2005eo390001

Cited by 20 publications

(22 citation statements)

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“…In bedrock aquifers there are often abrupt EC or Note: * geometric mean value. References: 1: Batsche et al (1970); 2: Müller and Zötl (1980); 3: Morfis and Zojer (1986); 4: Puig (1990); Mudry and Puig (1991); Couturaud and Puig (1992); 5: Bögli and Harum (1981); Jeannin et al (1995); 6: Benischke et al (1988); 7: Maloszewski et al (1992); 8: Katz (2001); Loper et al (2005); 9: Maloszewski et al (2002); 10: Einsiedl (2005); Einsiedl et al (2010); 11: Long and Putnam (2006); 12: Worthington (2007); 13 : Cook et al (2012).…”

Section: Useful Test Methods For Understanding Flow and Transport In mentioning

confidence: 96%

Diagnostic tests for conceptualizing transport in bedrock aquifers

Worthington¹

2015

Journal of Hydrology

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Section: Useful Test Methods For Understanding Flow and Transport In mentioning

confidence: 96%

Diagnostic tests for conceptualizing transport in bedrock aquifers

Worthington¹

2015

Journal of Hydrology

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“…Changes in tide relate to identifiable fluctuations in the discharge. Dramatic evidence of this relation may be observed in large-scale tidal changes of the 2004 Atlantic hurricane season [see Loper et al, 2005].…”

Section: Estimatormentioning

confidence: 99%

“…The discharge shows behavior at the same frequency, but also at lower frequencies. The discharge signal lags the tide signal by 45 min [see Loper et al, 2005] and this has been accounted for in the data shown. Additionally, there was some missing data in the discharge signal (less than 1%).…”

Section: Wakulla Spring Discharge Datamentioning

confidence: 99%

“…We assume that h and h 0 have a large positive correlation. For tide and discharge, this is not unreasonable [see Loper et al, 2005].…”

Section: Estimatormentioning

confidence: 99%

“…The Florida hurricane season of 2004 demonstrated that tide greatly affects the discharge at this spring [see Loper et al, 2005]. Although the procedure described below will be developed in the context of this specific example, it has general applicability.…”

Section: Introductionmentioning

confidence: 99%

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Estimating tidal effects in spring discharge: A multiscale method using correlated phenomena

Chicken

Loper

Werner

2007

Water Resources Research

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Modeling groundwater flow within a coastal karst aquifer is a difficult task because of the influences of rainfall, sinking streams, lunisolar tides, and storm tides. A primary goal of modeling this flow is the accurate simulation of discharge due to rainfall and sinking streams. A necessary preliminary step to accomplish this is to remove from the discharge signal that portion resulting from the influence of tides. This paper presents a new wavelet method for separating these two signals. The statistical concept of correlation is used as a threshold parameter to accomplish the separation.

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Development of a discrete‐continuum VDFST‐CFP numerical model for simulating seawater intrusion to a coastal karst aquifer with a conduit system

2017

Water Resources Research

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A hybrid discrete‐continuum numerical model, Variable‐Density Flow and Solute Transport—Conduit Flow Process (VDFST‐CFP), is developed to simulate seawater intrusion to a coastal karst aquifer with a conduit network. The Darcy‐Weisbach equation is applied to simulate the nonlaminar groundwater flow in the conduit system that is conceptualized as pipes, while the Darcy equation is used for laminar groundwater flow in the continuum porous medium. Density‐dependent groundwater flow with appropriate additional density terms in the conduit is analytically derived. The flow and transport equations are coupled, and numerically solved by the finite difference method with an implicit iteration procedure. Two synthetic benchmarks are developed to compare the VDFST‐CFP model results with other numerical models, such as the variable‐density SEAWAT, constant‐density continuum MODFLOW/MT3DMS, and constant‐density discrete‐continuum CFPv2/UMT3D models. The VDFST‐CFP model compares reasonably well with the other model results in both conduit and porous medium domains, and well describes water and salt exchange between the two systems. Under turbulent flow conditions within the conduit, the Darcy‐Weisbach equation calculates the flow rate more accurately without overestimation by the Darcy equation. Sensitivity analysis indicates that conduit diameter, friction factor, matrix hydraulic conductivity, and effective medium porosity are important parameters in the VDFST‐CFP model. The pros and cons of the VDFST‐CFP model are discussed, including the model assumptions and simplifications, limitations of the discrete‐continuum modeling method, and the convergence criteria. In general, the newly developed VDFST‐CFP model provides a new numerical modeling method for simulating seawater intrusion in a coastal karst aquifer with conduits.

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Coastal carbonate aquifer sensitivity to tides

Cited by 20 publications

References 1 publication

Diagnostic tests for conceptualizing transport in bedrock aquifers

Diagnostic tests for conceptualizing transport in bedrock aquifers

Estimating tidal effects in spring discharge: A multiscale method using correlated phenomena

Development of a discrete‐continuum VDFST‐CFP numerical model for simulating seawater intrusion to a coastal karst aquifer with a conduit system

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