The Application of Electromagnetic and Electrical Methods to Groundwater Problems in Urban Environments

Buselli, G.; Davis, Gordon B.; Barber, Chris; Height, Murray; Howard, S. H.

doi:10.1071/eg992543

Cited by 19 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…They focused on controls on water movement for emerging applications such as hyporheic zone processes and soil–water-plant interactions. For contaminant mapping, Buselli et al ( 1990 , 1992 ) used transient electromagnetics and direct current (DC) resistivity to map salinity and the development of leachate plumes from waste landfills. Using ground penetrating radar, Hwang et al ( 2008 ) tracked the mobility of a tetrachloroethene spill release into a sand aquifer over time.…”

Section: Framing Where We Are Atmentioning

confidence: 99%

Advancing “Autonomous” sensing and prediction of the subsurface environment: a review and exploration of the challenges for soil and groundwater contamination

Davis

Rayner

Donn

2023

Environ Sci Pollut Res

View full text Add to dashboard Cite

Can we hope for autonomous (self-contained in situ) sensing of subsurface soil and groundwater pollutants to satisfy relevant regulatory criteria? Global advances in sensors, communications, digital technologies, and computational capacity offer this potential. Here we review past efforts to advance subsurface investigation techniques and technologies, and computational efforts to create a digital twin (representation) of subsurface processes. In the context of the potential to link measurement and sensing to a digital twin computation platform, we outline five criteria that might make it possible. Significant advances in sensors based on passive measurement devices are proposed. As an example of what might be achievable, using the five criteria, we describe the deployment of online real-time sensors and simulations for a case study of a petroleum site where natural source zone depletion (NSZD) is underway as a potential biodegradation management option, and where a high-quality conceptual site model is available. Multiple sensors targeting parameters (major gases and temperature influenced by soil moisture) relevant to the subsurface NSZD biodegradation processes are shown to offer the potential to map subsurface processes spatially and temporally and provide continuous estimates of degradation rates for management decisions, constrained by a computational platform of the key processes. Current limitations and gaps in technologies and knowledge are highlighted specific to the case study. More generally, additional key advances required to achieve autonomous sensing of subsurface soil and groundwater pollutants are outlined.

show abstract

Section: Framing Where We Are Atmentioning

confidence: 99%

Advancing “Autonomous” sensing and prediction of the subsurface environment: a review and exploration of the challenges for soil and groundwater contamination

Davis

Rayner

Donn

2023

Environ Sci Pollut Res

View full text Add to dashboard Cite

show abstract

“…The TDEM technique is useful to identify major changes in electrical conductivity with depth associated with fluid content and chemistry, and major changes in lithology (Hoekstra and Blom, 1990;Soupios and Ntarlagiannis, 2017). In landfill studies, it is particularly used for discriminating between layers having low resistivity and consequently for defining leachate intrusion and diffusion (Buselli et al, 1990(Buselli et al, , 1992.…”

Section: Time-domain Electromagnetic Surveymentioning

confidence: 99%

3D geophysical imaging for site-specific characterization plan of an old landfill

et al. 2018

View full text Add to dashboard Cite

“…Por outro lado, embora a utilidade de sondagens elétricas na caracterização de aterros desativados seja empregada há vários anos (Carpenter et al, 1990;Buselli et al, 1992), uma limitação aparece quando da sua utilização em locais com falta de espaço físico para abertura suficiente de eletrodos, para uma investigação adequada do local. Comoé bem conhecido (Ward, 1990), quanto menor a abertura dos eletrodos, mais rasaé a profundidade investigada pela sondagem.…”

Section: Introductionunclassified

O uso de sondagens dipolo-dipolo em estudos hidrogeológicos e de depósitos de resíduos

et al. 2008

View full text Add to dashboard Cite

ABSTRACT. Sounding and profiling resistivity measurements have been taken worldwide in assisting the investigation of a variety of problems in mineral and groundwater exploration, as well have been extended to the characterization of hazardous waste sites. Despite the utility of geoelectric data in hydrogeologic studies and characterizing abandoned landfills, a major problem in resistivity soundings arises in consequence of the absence of enough open space for data acquisition in such sites. In urban areas, it constitutes a major limitation because a variety of constructions preclude the deployment of arrays with suitable length. Although shallow investigations tend to be successful, the estimation of key parameters describing deeper portions potentially may fail. However, a slightly greater depth of investigation is provided by the dipole-dipole array, in comparison to Schlumberger and Wenner arrays of same size. This dipole-dipole property can be inferred from many studies but probably due to tradition and signal to noise ratio, most soundings are done with Schlumberger or Wenner arrays. In fact, dipole-dipole array is more used as a profiling tool. As far we known, the deeper investigation capacity of 1D dipole-dipole array was neither explored in landfill studies or in site investigation in urban areas.Our study presents field results that highlight the utility of DD soundings in the investigation of such sites.Keywords: dipole-dipole soundings, depth of investigation, hydrogeological and environmental studies. RESUMO.Ensaios de sondagem e caminhamento elétrico têm sido realizados globalmente na avaliação de uma grande variedade de problemas em exploração mineral e hidrogeologia, bem como na caracterização de locais com risco de contaminação. A despeito da utilidade de ensaios geoelétricos em estudos hidrogeológicos e na caracterização de depósitos de resíduos desativados, um problema na utilização de sondagens elétricas ocorre em conseqüência da falta de espaço para aquisição de dados nessasáreas. Emáreas urbanas, isto constitui uma limitação importante devidoà existência de construções, o que muitas vezes interrompe o desenvolvimento de ensaios de campo com arranjos de comprimentos adequados. Embora investigações rasas tendam a ser eficazes em caracterização geoambiental, a estimativa de parâmetros-chave pode depender da investigação de porções mais profundas. Entretanto, uma profundidade de investigação ligeiramente maioré obtida pelo arranjo dipolo-dipolo em comparação aos arranjos Schlumberger e Wenner de mesmo comprimento. Essa característica do arranjo dipolo-dipolo pode ser observada em vários estudos, mas provavelmente devidoà tradição eà relação sinal-ruído, a grande maioria das sondagens elétricasé feita com os arranjos Schlumberger e Wenner.O arranjo dipolo-dipoloé mais utilizado em ensaios 2D. Até onde se sabe, essa maior capacidade de investigação em profundidade do arranjo dipolo-dipolo 1D não foi explorada em estudos geoambientais e nem em estudos hidrogeológicos emáreas urbanas. Este trabalh...

show abstract

The Application of Electromagnetic and Electrical Methods to Groundwater Problems in Urban Environments

Cited by 19 publications

References 1 publication

Advancing “Autonomous” sensing and prediction of the subsurface environment: a review and exploration of the challenges for soil and groundwater contamination

Advancing “Autonomous” sensing and prediction of the subsurface environment: a review and exploration of the challenges for soil and groundwater contamination

3D geophysical imaging for site-specific characterization plan of an old landfill

O uso de sondagens dipolo-dipolo em estudos hidrogeológicos e de depósitos de resíduos

Contact Info

Product

Resources

About