Storage in confined aquifer: Spectral analysis of groundwater responses to seismic Rayleigh waves

Shih, David Ching‐Fang

doi:10.1016/j.jhydrol.2009.06.002

Cited by 24 publications

(26 citation statements)

References 18 publications

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“…Seismological theory [45][46][47] predicts that Ss for a confined aquifer can be found by comparing, as the Rayleigh waves from distant large earthquakes roll by, earthquake seismograms to water level oscillations as illustrated in Figure 10. To determine specific storage, the borehole amplification factor has to be known for the well.…”

Section: Specific Storage From Earthquake Seismologymentioning

confidence: 99%

A Columbia River Basalt Group Aquifer in Sustained Drought: Insight from Geophysical Methods

Piersol

Sprenke

2015

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Aquifers within the Columbia River Basalt Group (CRBG) provide a critical water supply throughout much of the Pacific Northwest of the United States. Increased pumping has resulted in water level declines in this region. Recharge into this aquifer system is generally not well understood. Recent suggestions of probable decades-long droughts in the 21st century add to this problem. We show that geophysical methods can provide useful parameters for improved modeling of aquifers in a primary CRBG aquifer located on the eastern edge of the Columbia Plateau. Groundwater models depend in part on the area, thickness, porosity, storativity, and nature of confinement of this aquifer, most of which are poorly constrained by existing well information and previous stress tests. We have made use of surface gravity measurements, borehole gravity measurements, barometric efficiency estimates, earth tidal response, and earthquake seismology observations to constrain these parameters. We show that the aquifer, despite its persistent drawdown, receives a great deal of recharge annually. Much of the recharge to the aquifer is due to leakage from overlying flows, ultimately tied to precipitation, an important result for future aquifer management in times of sustained drought.

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Section: Specific Storage From Earthquake Seismologymentioning

confidence: 99%

A Columbia River Basalt Group Aquifer in Sustained Drought: Insight from Geophysical Methods

Piersol

Sprenke

2015

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“…Understanding permeability is key. In hydrogeology, the methods for investigating such changes include (1) laboratory-based analyses (Chapuis, 1992;Ma et al, 2014); (2) hydraulic tests (Bouwer & Rice, 1976;Cooper et al, 1965;Jacob, 1940;Sethi, 2011); and (3) evaluating the response of piezometric level to periodic loadings (such as Earth tide and atmospheric pressure; Hsieh et al, 1987;Rojstaczer, 1988;Shih, 2009;Shih et al, 2013;Sun et al, 2015). The first method often leads to results that cannot represent real values under natural conditions.…”

Section: Introductionmentioning

confidence: 99%

Changes in Permeability Caused by Two Consecutive Earthquakes—Insights From the Responses of a Well‐Aquifer System to Seismic Waves

Sun

Xiang

Shi

2019

Geophysical Research Letters

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Earthquake‐induced aquifer permeability changes have been observed both in the laboratory and the field. However, the effects of multiple earthquakes on aquifer systems have rarely been differentiated. In this study, we analyze the piezometric response to earthquake pairs that occurred on the same day. The results show that events with higher seismic energy may result in a rise in piezometric level, and the seismic waves enhanced the permeability of the aquifer by different magnitudes. Stress/strain history from consecutive earthquakes may be retained, and permeability increased much more following the second earthquake than the first one. The method proposed in this study is useful in evaluating the permeability enhancement induced by consecutive earthquakes. The stress/strain memory of aquifers also has important implications for understanding aftershocks.

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Section: Introductionmentioning

confidence: 99%

“…The Earth and ocean tides are affected by the interaction between Earth and astronomical planets. For aquifers adjacent to ocean, water body, or seismic hypocenter, the water level fluctuates to an extent; many extended works can be found (Cooper Jr., Bredehoeft, Papadopoulos, & Bennett, 1965;Bredehoeft, 1967;Shih, 2009;Shih & Lin, 2002, 2004Shih, Chiou, Lee, & Wang, 1999, 2013Todd, 1980). Periodic aquifer dilatation and associated water-level fluctuations in groundwater wells are known to be affected from lunar and solar tidal forces.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, time‐dependent variables can be converted to power spectra using Fourier transform; the significant fluctuation in frequency domain can be investigated. Time dependent solution or empirical relationship also can be represented as the spectra forms in frequency domain (Shih, , , ). The interested parameter rooted therein can be determined substantially.…”

Section: Introductionmentioning

confidence: 99%

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Storage in confined aquifer: Spectral analysis of groundwater in responses to Earth tides and barometric effect

Shih

2018

Hydrological Processes

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Dilatation of aquifer and associated water level fluctuation in groundwater well is known to be driven periodically from lunar, solar, or other tidal forces. Time‐dependent variables in groundwater system, such as water level, can be converted to power spectra in the frequency domain using Fourier transform to evaluate significant fluctuation. The major innovation of this research is to develop spectral representation in frequency domain for the groundwater system that the storage in confined aquifer can be determined considering dilatation affected by Earth tides and barometric effect. In order to verify applicability of the evolved method, time series of Earth tides and barograph are collected; aquifer storage is then determined inversely by selecting significant semidiurnal and diurnal components in spectra computation. It suggests that to discover groundwater storage using groundwater level with barograph and tidal potential of Earth in frequency domain becomes accessible and feasible.

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Storage in confined aquifer: Spectral analysis of groundwater responses to seismic Rayleigh waves

Cited by 24 publications

References 18 publications

A Columbia River Basalt Group Aquifer in Sustained Drought: Insight from Geophysical Methods

A Columbia River Basalt Group Aquifer in Sustained Drought: Insight from Geophysical Methods

Changes in Permeability Caused by Two Consecutive Earthquakes—Insights From the Responses of a Well‐Aquifer System to Seismic Waves

Storage in confined aquifer: Spectral analysis of groundwater in responses to Earth tides and barometric effect

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