Excess air during aquifer storage and recovery in an arid basin (Las Vegas Valley, USA)

Solomon, D. Kip; Cole, Erin; Leising, Joseph F.

doi:10.1007/s10040-010-0659-0

Cited by 8 publications

(8 citation statements)

References 3 publications

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“…The described instrument was useful in examining the development of excess air in groundwater. Excess air (Heaton and Vogel ; Aeschbach‐Hertig et al ; Klump et al ; Solomon et al ) in groundwater was formed either by fluctuating water levels at the recharge pressurizing gas in the pore space or through vorticity in rapidly descending waters in fractured or karstified formations. Dissolved gas analysis is commonly used to calculate temperature at recharge by assuming that the saturation level of atmogenic gas is temperature driven; however, excess air is shown as a pressure phenomenon related to the depth of free gas entrapment in porous media (Holocher et al ; Jung and Aeschbach ).…”

Section: Discussion and Summarymentioning

confidence: 99%

An Instrument for the Determination of a Hydropneumograph in a Bubbling Spring

Agnew¹,

Halihan

Holtzhower

et al. 2019

Groundwater

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In order to enable greater accuracy in the determination of the mass discharge of gas and water‐gas ratios (WGR) in groundwater from springs, we have developed a field‐deployable instrument using commercially available components to independently measure the gas and water mass flow rates in springs with bubbling mixed‐phase flow. Collecting and measuring the free gas phase will allow for further compositional analysis that may be useful in improving gas‐derived parameters such as recharge temperature and age, as well as quantification of methanogenesis and flux of crustal/mantle gasses. By installing a phase separator at the spring discharge, a thermal mass flow sensor is utilized to measure the gas flow rate (ebullition + flux) generated from a spring. The water flow rate is determined by a standard weir. Field performance of the device was tested on a spring discharging from the Arbuckle‐Simpson aquifer near the town of Connerville in south‐central Oklahoma, USA.

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Section: Discussion and Summarymentioning

confidence: 99%

An Instrument for the Determination of a Hydropneumograph in a Bubbling Spring

Agnew¹,

Halihan

Holtzhower

et al. 2019

Groundwater

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show abstract

“…Managed aquifer recharge operations, intended to replenish unsustainable groundwater abstraction in the Santa Clara and Los Angeles basins, have a major impact on signatures of recharge and infiltration rates. Noble gas recharge temperatures are potential tracers for measuring the efficacy of recharge [Cey et al, 2008;D Solomon et al, 2010]. Noble gas signatures found under managed aquifer recharge operations are distinctly different from ambient groundwater.…”

Section: Discussionmentioning

confidence: 99%

California GAMA Special Study: Geostatistical analysis of groundwater age and other noble gas derived parameters in California

Visser¹,

Moran²,

Singleton³

et al. 2014

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“…Such degassing effects can be limited by calculating dissolved gas concentrations from in situ P TDG values (subtracting the vapor pressure of water), Henry's law coefficients, and the gas composition (mole fractions). This approach is required for the passive diffusion gas sampler (e.g., Sanford et al ); however, it can be applied to any sampling method that measures gas composition (e.g., Visser et al ; Solomon et al ).…”

Section: More Accurate (And Potentially Simpler) Dissolved Gas Concenmentioning

confidence: 99%

“…Although measurement of groundwater P TDG has been reported in the literature for some time (e.g., Manning et al ; Visser et al ; McLeish et al ; Roy and Ryan ; Solomon et al ), it has unfortunately not yet been widely adopted by the groundwater community. It is measurable by both commercial probes and in‐house probes construction (i.e., it is not that difficult to build one; see Manning et al ).…”

Section: Introductionmentioning

confidence: 99%