Determination of aquifer parameters from well tides

Rhoads, George H.; Robinson, Edwin S.

doi:10.1029/jb084ib11p06071

Cited by 60 publications

(38 citation statements)

References 9 publications

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“…Eventually, the numbers of wells with anomalies decreased gradually. As the tide-factor was closely related to the properties of aquifer materials (Elkhoury et al, 2006;Rhoads and Robinson, 1979), the evolution of the above anomalies may suggest that aquifer materials suffer changes from the processes of development and the occurrence of earthquakes. Table 4 and Fig.…”

Section: Temporal-spatial Distribution Of Tide-factor Anomaliesmentioning

confidence: 97%

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Tide-factor anomalies from observations of well level in the Sichuan Province prior to the great Wenchuan earthquake of 2008

Liu

Wang

Shi

et al. 2013

Journal of Geodynamics

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Section: Temporal-spatial Distribution Of Tide-factor Anomaliesmentioning

confidence: 97%

“…The change in pore pressure results from the dilatation of the aquifer and can be expressed as (Rhoads and Robinson, 1979):…”

Section: Mechanism Of Tide-factor Anomaliesmentioning

confidence: 99%

Tide-factor anomalies from observations of well level in the Sichuan Province prior to the great Wenchuan earthquake of 2008

Liu

Wang

Shi

et al. 2013

Journal of Geodynamics

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“…Il s'agit donc là, à l'opposé des influences barométriques, de l'impact d'un phénomène périodique. Pour observer et prouver l'existence des marées terrestres, les données piézo-métriques se traitent selon certains auteurs au moyen d'analyses harmoniques utilisant les transformées de Fourier (Robinson & Bell, 1971;Rhoads & Robinson, 1979). Cette technique semble en effet permettre l'identification des différentes fréquences des fluctuations piézométriques et leur amplitude, le spectre obtenu étant représentatif de la courbe piézométrique.…”

Section: Effets Des Marées Terrestresunclassified

Filtrages piézométriques préliminaires à l'analyse du comportement des eaux souterraines lors des crises sismiques: exemple dans le petit Caucase

Grillot

Clezio

Bodoyan

1995

Hydrological Sciences Journal

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Résumé Les crises sismiques peuvent provoquer des modifications plus ou moins brutales et durables du niveau des nappes, particulièrement en milieu captif. Or les observations piézométriques faites dans des forages fournissent un signal brut. Celui-ci peut être en effet perturbé par les variations de la pression atmosphérique et par les marées terrestres. Une méthode de traitement du signal piézométrique brut est proposée (programme FIPAC). Deux exemples d'application sont analysés, par rapport à trois séismes historiques (Spitak en Arménie en 1988; Radia, 1991 Barysakho 1992, Géorgie), à partir de données acquises dans les chaînes du petit Caucase au pas de temps horaire et sur plusieurs années.Screening piezometric levels prior to analysis of groundwater behaviour during seismic crises: example in the lesser Caucasus Abstract Seismic crisis can induce more or less drastic and long duration modifications of water table piezometry, especially in confined media. Piezometric observations made in boreholes deliver basic signals which can be disturbed by the atmospheric pressure and earth tides. One method of processing the raw piezometric signals is proposed (FIPAC computer program). Two examples of its application are analysed from results registered in the lesser Caucasus range (hourly measurements during several years) related to three historical major earthquakes

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“…Therefore, the requirement for the pumping tests and cost can be reduced. Determination of aquifer parameters with tidal measurements was discussed by Ferris (1951), Carr and Van der Kamp (1969), Rhoads and Robinson (1979). Erskine (1991) examined the factors affecting aquifer parameters when using the tidal methods.…”

Section: Introductionmentioning

confidence: 99%

Determination of aquifer parameters based on measurements of tidal effects on a coastal aquifer near Beihai, China

Zhou

2007

Hydrological Processes

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Abstract:Measurements of the tide and groundwater levels in coastal zones are of importance in determining the properties of coastal aquifers. The solution to a one-dimensional unsteady groundwater flow model in a coastal confined aquifer with sinusoidal fluctuation of the tide shows that the tidal efficiency decreases exponentially with distance and the time lag increases linearly with distance from the coast. The aquifer property described by the ratio of storage coefficient to transmissivity is determined if the damping constant of the tidal efficiency or the slope of the time lag with distance are obtained on the basis of tidal measurements. Hourly observations of the tide and groundwater levels at 10 wells on the northern coast near Beihai, China show that with distance from the coast, tidal efficiency decreases roughly exponentially and the time lag increases roughly linearly. The estimated ratio of storage coefficient to transmissivity of the confined aquifer ranges from 1Ð169 ð 10 6 d m 2 to 1Ð83 ð 10 7 d m 2 . For a given transmissivity of 750 m 2 d 1 , the storage coefficient of the aquifer is 8Ð7675 ð 10 4 with the tidal efficiency method and 1Ð3725 ð 10 4 with the time lag method. The damping constant of the tidal efficiency with distance can be defined as the tidal propagation coefficient. The value of the confined aquifer is determined as 0Ð0018892 m 1 .

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Determination of aquifer parameters from well tides

Cited by 60 publications

References 9 publications

Tide-factor anomalies from observations of well level in the Sichuan Province prior to the great Wenchuan earthquake of 2008

Tide-factor anomalies from observations of well level in the Sichuan Province prior to the great Wenchuan earthquake of 2008

Filtrages piézométriques préliminaires à l'analyse du comportement des eaux souterraines lors des crises sismiques: exemple dans le petit Caucase

Determination of aquifer parameters based on measurements of tidal effects on a coastal aquifer near Beihai, China

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