Estimating Aquifer Properties from the Water Level Response to Earth Tides

Cutillo, P. A.; Bredehoeft, John

doi:10.1111/j.1745-6584.2010.00778.x

Cited by 69 publications

(112 citation statements)

References 19 publications

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“…The Poisson's ratio is defined as the ratio between the latitudinal and longitudinal strain due to stretching or compressing of a given material. A value of 0.25 is typically used in most analyses (Merritt, 2004;Cutillo and Bredehoeft, 2011). The Love numbers depend on the elastic properties of the earth and relate theoretical tidal potential to actual displacement at the surface of the earth.…”

Section: D11 Methodologymentioning

confidence: 99%

“…This term can be estimated by the amplitude ratio of the harmonic component of the tidal potential and the same harmonic component of the water level for a given frequency in the tidal spectrum (Merritt, 2004;Cutillo and Bredehoeft, 2011) as…”

Section: D11 Methodologymentioning

confidence: 99%

“…Of the three, N 2 typically has a poor signal to noise ratio, leaving only O 1 and M 2 signals remaining. Most studies (Hsieh et al, 1987;Merritt, 2004;Cutillo and Bredehoeft, 2011) analyze only these two frequencies when estimating aquifer properties from water-level response to earth-tide forcings. Thus, this analysis was also based only on the O 1 and M 2 signals, ignoring the K 1 , S 2 , and N 2 frequencies.…”

Section: D11 Methodologymentioning

confidence: 99%

“…Such an assumption may or may not be valid depending on the type of rock matrix. Cutillo and Bredehoeft (2011) point out that such an assumption may not be "very good for aquifers in competent rocks, especially those where the porosity is small." The assumptions for compressibility and vertical strains will be relaxed in subsequent analysis that will follow this preliminary work.…”

Section: C13 Parameter Estimationmentioning

confidence: 99%

“…Thus, Hsieh et al (1987) and Cutillo and Bredehoeft (2011) Table D.1-1, which shows that the tidal constituents of interest all have periodicities greater than 12 hours.) For this analysis, a continuous period of record (without any gaps in data) is required.…”

Section: Pahute Mesa Well Development and Testing Analyses For Wells mentioning

confidence: 99%

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Pahute Mesa Well Development and Testing Analyses for Wells ER-20-8 and ER-20-4, Nevada National Security Site, Nye County, Nevada, Revision 0

Marutzky¹

2012

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Section: D11 Methodologymentioning

confidence: 99%

Section: D11 Methodologymentioning

confidence: 99%

Section: D11 Methodologymentioning

confidence: 99%

Section: C13 Parameter Estimationmentioning

confidence: 99%

Section: Pahute Mesa Well Development and Testing Analyses For Wells mentioning

confidence: 99%

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Pahute Mesa Well Development and Testing Analyses for Wells ER-20-8 and ER-20-4, Nevada National Security Site, Nye County, Nevada, Revision 0

Marutzky¹

2012

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Insights into water level response to seismic waves: A 24 year high‐fidelity record of global seismicity at Devils Hole

Weingarten

2014

Geophysical Research Letters

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We studied the 24 year record of water level responses in Devils Hole, Death Valley National Park, NV, to dynamic crustal stresses from earthquakes. The continuous water level record exhibited 219 responses from earthquakes around the world, displaying hydroseismogram and coseismic offset types of response. We found that the water level in Devils Hole is extremely sensitive to earthquakes, and the seismic energy density required to initiate both hydroseismogram and coseismic offset responses is e~10 À6 J/m 3 , 2 orders of magnitude smaller than previously documented. Multiple mechanisms at Devils Hole may be responsible for observed water level responses to distant earthquakes. The hydroseismogram-type responses are best explained by poroelastic deformation, while coseismic offset responses are likely the result of localized permeability changes. This study could have implication to studying dynamic triggering of earthquakes, as remote earthquakes can lead to pore pressure changes and consequently effective stress changes in fluid-filled fault zones.

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Borehole water level response to barometric pressure as an indicator of aquifer vulnerability

Hussein¹,

Odling

Clark

2013

Water Resour. Res.

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[1] The response of borehole water levels to barometric pressure changes in semiconfined aquifers can be used to determine barometric response functions from which aquifer and confining layer properties can be obtained. Following earlier work on barometric response functions and aquifer confinement, we explore the barometric response function as a tool to improve the assessment of groundwater vulnerability in semiconfined aquifers, illustrated through records from two contrasting boreholes in the semiconfined Chalk Aquifer, East Yorkshire, UK. After removal of recharge and Earth tide influences on the water level signal, barometric response functions were estimated and aquifer and confining layer properties determined through an analytical model of borehole water level response to barometric pressure. A link between the thickness and vertical diffusivity of the confining layer determined from the barometric response function, and groundwater vulnerability is proposed. The amplitude spectrum for barometric pressure and instrument resolution favor determination of the barometric response function at frequencies to which confining layer diffusivities are most sensitive. Numerical modeling indicates that while the high frequency response reflects confining layer properties in the immediate vicinity of the borehole, the low frequency response reflects vertical, high diffusivity pathways though the confining layer some hundreds of meters distant. A characteristic time scale parameter, based on vertical diffusivities and thicknesses of the saturated and unsaturated confining layer, is introduced as a measure of semiconfined aquifer vulnerability. The study demonstrates that the barometric response function has potential as a tool for quantitative aquifer vulnerability assessment in semiconfined aquifers.

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Estimating Aquifer Properties from the Water Level Response to Earth Tides

Cited by 69 publications

References 19 publications

Pahute Mesa Well Development and Testing Analyses for Wells ER-20-8 and ER-20-4, Nevada National Security Site, Nye County, Nevada, Revision 0

Pahute Mesa Well Development and Testing Analyses for Wells ER-20-8 and ER-20-4, Nevada National Security Site, Nye County, Nevada, Revision 0

Insights into water level response to seismic waves: A 24 year high‐fidelity record of global seismicity at Devils Hole

Borehole water level response to barometric pressure as an indicator of aquifer vulnerability

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