Hydrogeophysical Applications in Coastal Aquifers

Goldman, M.; Kafri, Uri

doi:10.1007/978-1-4020-4912-5_8

Cited by 31 publications

(25 citation statements)

References 17 publications

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“…One of the oldest geophysical methods, ER imaging has been used for many applications, including delineation of the freshwater/saltwater interface (Nassir et al 2000;Goldman and Kafri 2006), monitoring plumes of groundwater contamination (Cassiani et al 2006;Webb et al 2008), locating fractures in solid host rocks (Seaton and Burbey 2002), and differentiating sandy aquifers from clays (Baines et al 2002).…”

Section: Methodsmentioning

confidence: 99%

Combined use of frequency-domain electromagnetic and electrical resistivity surveys to delineate near-lake groundwater flow in the semi-arid Nebraska Sand Hills, USA

et al. 2010

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A frequency-domain electromagnetic (FDEM) survey can be used to select locations for the more quantitative and labor-intensive electrical resistivity surveys. The FDEM survey rapidly characterized the groundwaterflow directions and configured the saline plumes caused by evaporation from several groundwater-dominated lakes in the Nebraska Sand Hills, USA. The FDEM instrument was mounted on a fiberglass cart and towed by an all-terrain vehicle, covering about 25km/day. Around the saline lakes, areas with high electrical conductivity are consistent with the regional and local groundwater flow directions. The efficacy of this geophysical approach is attributed to: the high contrast in electrical conductivity between various groundwater zones; the shallow location of the saline zones; minimal cultural interference; and relative homogeneity of the aquifer materials.

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Section: Methodsmentioning

confidence: 99%

Combined use of frequency-domain electromagnetic and electrical resistivity surveys to delineate near-lake groundwater flow in the semi-arid Nebraska Sand Hills, USA

et al. 2010

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“…For example, Goldman and Kafri (2006) described a methodology to calculate porosity from timedomain electromagnetic data and electrical measurements, based on Archie's law (Archie, 1942). Amidu and Dunbar (2008) evaluated the potential of electrical resistivity inversion methods for water-reservoir salinity studies.…”

Section: Introductionmentioning

confidence: 99%

Imaging artificial salt water infiltration using electrical resistivity tomography constrained by geostatistical data

Hermans

Vandenbohede

Lebbe

et al. 2012

Journal of Hydrology

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“…The transient electromagnetic (TEM) soundings have been used extensively to map changes in groundwater quality, which depends on the variation of conductivity (Stewart and Gay 1986;Kruse et al 1998). The ability to acquire vertical data as well as lateral data without drilling makes the TEM technique quite cost effective as nondestructive noninvasive method, especially in reconnaissance mapping of the extent of saltwater intrusion, estimating its approximate depth and any changes within the saltwater transition zone (McNeill 1990(McNeill , 1990Goldman and Kafri 2006). TEM soundings are particularly well suited to delineate layered structures of interest in geologic as well as groundwater exploration (Nabighian and Macnae 1991) and for assisting in mapping boundaries between freshwater and saltwater in coastal aquifers because of its ability to detect good conductors, such as clay and shale as well as saline water environment (Fitterman and Deszcz-Pan 1998; Kontar and Ozorovich 2006;Shah et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Delineation of saline groundwater and sea water intrusion zones using transient electromagnetic (TEM) method, Wadi Thuwal area, Saudi Arabia

Al‐Garni

El-Kaliouby

2009

Arab J Geosci

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In the coastal western part of Saudi Arabia at Thuwal area located close from the Red Sea, the shallow groundwater specific electrical conductivities measured at the drill holes range from 6 to 13 mS/cm. In order to study the origin of this salinity, a good knowledge is required of the aquifer geometry with depth. Ninety nine transient electromagnetic (TEM) soundings were carried out over an area of about 100 km 2 . From the TEM profiles, a conductive substratum with a resistivity of 1-13 Ωm was identified at most of the sites at depth ranging from 50 to 150 m. This substratum is related to Oligocene-Miocene sediments (Shumaysi Formation) which are mainly red clay-rich formation containing brines at coastal zones. Clayey sediments are more likely present in the southeastern part and along the faults that run NE-SW across the study area and parallel to the Quaternary volcanic which runs NW-SE. The study demonstrated the effectiveness of the TEM sounding method to map conductive zones.

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Hydrogeophysical Applications in Coastal Aquifers

Cited by 31 publications

References 17 publications

Combined use of frequency-domain electromagnetic and electrical resistivity surveys to delineate near-lake groundwater flow in the semi-arid Nebraska Sand Hills, USA

Combined use of frequency-domain electromagnetic and electrical resistivity surveys to delineate near-lake groundwater flow in the semi-arid Nebraska Sand Hills, USA

Imaging artificial salt water infiltration using electrical resistivity tomography constrained by geostatistical data

Delineation of saline groundwater and sea water intrusion zones using transient electromagnetic (TEM) method, Wadi Thuwal area, Saudi Arabia

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