Towards a better estimate of storage properties of aquifer with magnetic resonance sounding

Vouillamoz, Jean‐Michel; Sokheng, S.; Bruyère, Olivier; Caron, Delphine; Arnout, Ludovic

doi:10.1016/j.jhydrol.2012.06.044

Cited by 34 publications

(53 citation statements)

References 30 publications

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“…Pumping durations lasted between 72 and 120 h and pumping yields ranged between 1.3 and 9.4 m 3 /h. Pumping tests were interpreted by Vouillamoz et al (2012a) using analytical solutions and drawdown log-derivative analysis (Renard et al 2009) implemented in AQTESOLV/Pro v4.5 software.…”

Section: Estimation and Supplementation Of Aquifer Productivity And Smentioning

confidence: 99%

“…water-table mapping, drilling boreholes, setting up pumping tests, monitoring groundwater levels and rainfall, analysis of water isotopes-together with the geophysical magnetic resonance sounding (MRS) method. Based on new developments in the application of MRS for assessing aquifer specific yield (Vouillamoz et al 2012a(Vouillamoz et al , 2014a, a sizable MRS survey has been conducted for quantifying aquifer storage and recharge. From the unrivalled data set obtained, the groundwater resource of shallow sandstones that are targeted by local drillers has been estimated for the first time in the Oddar Meanchey province.…”

Section: Introductionmentioning

confidence: 99%

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Can groundwater secure drinking-water supply and supplementary irrigation in new settlements of North-West Cambodia?

Vouillamoz

Valois²,

Lun

et al. 2015

Hydrogeol J

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Since the end of the Cambodian Civil War in 1998, the population of the Oddar Meanchey province has drastically increased despite the lack of adequate infrastructure, including basic amenities such as drinking-water supply. To improve the access to drinking water, governmental and aid agencies have focussed on drilling shallow boreholes. The use of groundwater for irrigation is also a growing concern to cope with the occasional late arrival of the rainy season or to produce food during the dry season. Since the groundwater resource in the province has not been documented, a 4-year study was undertaken (2011)(2012)(2013)(2014), aiming to estimate the capability of groundwater to supply domestic needs and supplementary irrigation for rice production. Aquifer properties were estimated by combined use of hydrogeological techniques with the geophysical magnetic resonance sounding method. Groundwater storage and recharge were estimated based on new developments in the application of the geophysical method for quantifying specific yield. The median groundwater storage of the targeted sandstone aquifer is 173 mm, the recharge is diffuse and annually ranges from 10 to 70 mm, and the transmissivity is low to medium.Simulations of pumping indicate that the aquifer can easily supply 100 L of drinking water per capita daily, even considering the estimated population in 2030. However, the shallow aquifer can generally not deliver enough water to irrigate paddy fields of several hectares during a 2-month delay in the onset of the monsoon.

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Section: Estimation and Supplementation Of Aquifer Productivity And Smentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Can groundwater secure drinking-water supply and supplementary irrigation in new settlements of North-West Cambodia?

Vouillamoz

Valois²,

Lun

et al. 2015

Hydrogeol J

View full text Add to dashboard Cite

show abstract

“…The relationship between MRS parameters and groundwater storage parameters is still not well established (Vouillamoz et al, 2012b). The computing of extractable groundwater storage in unconfined aquifers requires the specific yield (S y ) while in confined aquifers the elastic storativity (S e ).…”

Section: Magnetic Resonance Sounding Methodsmentioning

confidence: 99%

“…The MRS survey provides θ MRS , which is an estimate of the free water content (θ f ) that is composed of both extractable, gravitational water and immobile, non-extractable capillary water (Lubczynski and Roy, 2007). Thus neither S y nor S e are equivalent to θ MRS although there are empirical relations between them Roy, 2004, 2007;Vouillamoz et al, 2007;Boucher et al, 2009b;Vouillamoz et al, 2012b). In this study, to calculate unconfined and confined storage parameters we used the empirical Equations (4.6) and (4.7) respectively (Vouillamoz et al, 2007):…”

Section: Magnetic Resonance Sounding Methodsmentioning

confidence: 99%

“…The storage parameters, i.e. specific yield (S y ) and elastic storativity (S e ), are related with the MRS water content Vouillamoz et al, 2005;Lubczynski and Roy, 2007;Vouillamoz et al, 2007), although recent studies also included the decay time constant (Vouillamoz et al, 2012b(Vouillamoz et al, , 2014b. The MRS sensitivity of water detection was illustrated with a synthetic study of Legchenko et al (2006) who showed that a 20 m thick layer with water content of 2% can be detected down to ∼50 m under low noise conditions (∼5 nV stacked noise).…”

Section: Introductionmentioning

confidence: 99%

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Integration of hydrogeophysics and remote sensing with coupled hydrological models

Francés¹

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Magnetic Resonance Imaging for Groundwater

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Towards a better estimate of storage properties of aquifer with magnetic resonance sounding

Cited by 34 publications

References 30 publications

Can groundwater secure drinking-water supply and supplementary irrigation in new settlements of North-West Cambodia?

Can groundwater secure drinking-water supply and supplementary irrigation in new settlements of North-West Cambodia?

Integration of hydrogeophysics and remote sensing with coupled hydrological models

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