Determination of hydraulic boundary conditions for the interaction between surface water and groundwater

Macheleidt, W.; Nestler, W.; Grischek, Thomas

doi:10.1144/gsl.sp.2002.193.01.17

Cited by 7 publications

(3 citation statements)

References 3 publications

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“…As 222 Rn reaches radioactive equilibrium with radium after 25 days, the radon activity of groundwater will be indicative of the aquifer environment within an approximate travel time of 25 days from the point of sampling. This fact can be exploited to identify different sources of groundwater and the utility of 222 Rn as a tracer has already been demonstrated in a range of hydrological situations (e.g., [6,7,8,9,10,11,12]), providing information about flow paths and residence times.…”

Section: Introductionmentioning

confidence: 99%

Radon in groundwater in parts of coastal tracts of southern Kerala, India

Nandakumaran

Vinayachandran

Shyam

et al. 2015

J Radioanal Nucl Chem

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Spatial distribution of radon in groundwater in the coastal tracts of southern Kerala, India was studied to understand its linkage with the monazite bearing beach sand deposits in the area. The mean radon concentrations were below the guideline value recommended by United States Environmental Protection Agency in about 94 % samples analyzed. Annual effective ingestion and inhalation doses of water-borne radon were found to be well below the average doses reported from all natural sources. The study indicated that radionuclides in the monazite-rich beach sands do not contribute significantly to the radon concentration in groundwater in the area.

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Section: Introductionmentioning

confidence: 99%

Radon in groundwater in parts of coastal tracts of southern Kerala, India

Nandakumaran

Vinayachandran

Shyam

et al. 2015

J Radioanal Nucl Chem

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“…Burnett et al, 2006;Cook et al, 2003;Genereux et al, 1993;Hamada, 1999;Lee and Kim, 2006;Swarzenski et al, 2007) and in investigations of groundwater-river water interactions (e.g. Bertin and Bourg, 1994;Hoehn and von Gunten, 1989;Macheleidt et al, 2002;Schubert et al, 2004). These studies have usually sampled a number of groundwater monitoring wells in a catchment or aquifer and utilised either the mean or most reasonable single values as representative of catchment waters, i.e.…”

Section: Introductionmentioning

confidence: 99%

Controls on the spatial and temporal variability of 222Rn in riparian groundwater in a lowland Chalk catchment

Mullinger

Pates

Binley

et al. 2009

Journal of Hydrology

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Radon is a powerful tracer of stream-aquifer interactions. However, it is important to consider the source and behaviour of radon in groundwater when interpreting observations of river radon in relation to groundwater discharge. Here we characterise the variability in groundwater radon concentrations in the riparian zone of a Chalk catchment. Groundwater 222 Rn (radon) concentrations were determined in riparian zone boreholes at two sites in the Lambourn catchment, Berkshire, UK, over a two year period. In addition, borehole core material was analysed for 226 Ra (radium) and to determine radon emanation. Radon and radium concentrations and radon emanation were found to change with depth and temporal variations in groundwater radon concentrations were found at different scales. The abundance of radium and emanation of radon increased nearer the surface leading to greater groundwater radon concentrations. It is shown that seasonal changes in water table elevation can to lead to variable radon concentrations in groundwater as zones of radon production become hydraulically active. Groundwater radon concentrations in shallow piezometers were found to respond to both seasonal changes in the water table and individual rainfall events. Riparian sources of radon can be variable and are therefore potentially influential in the radon signals observed in rivers and should be properly characterised when interpreting river radon inputs.

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“…But due to very coarse nature of river bed sediments, the reasonable results were not obtained by these seepage meters. 222 Rn is one of the natural tracers that can be used for the assessment of surface water -groundwater interaction (Macheleidt et al, 2002). Usually the 222 Rn concentration in groundwater is higher than the surface waters (Porcelli and Swarzenski, 2003).…”

Section: Resultsmentioning

confidence: 99%

Evaluation of the Spatio-Temporal Variability in River and Groundwater Interactions, an Example from South West of Iran

Chitsazan¹,

Faryabi²,

Zarasvandi³

et al. 2015

IJSRES

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Abstract. River -groundwater interaction is one of the most common types of surface water and groundwater exchanges that occur in alluvial aquifers. These interactions are variable with space and time and received great attentions in recent years. In this research, the natural tracers such as 222 Rn, natural heat and common water quality characteristics were applied to evaluation of the river-groundwater interactions. The study area is Chamgolak area that is located in the northeast of the Andimeshk city in the south west of Iran. The Dez River is the major surface water body that interacts with groundwater in this area. The temporal and spatial variation of water exchanges between the river and groundwater were evaluated in this research. For this purpose, some common water quality parameters such 222 Rn, temperature, electrical conductivity (EC) and nitrate were measured in 2012-2013 water year. The temporal variation patterns of common water quality parameters shows that the river recharge water influences the groundwater quality, so that the amounts of electrical conductivity (EC), temperature and nitrate show a notable decrease in river adjacent wells especially in wet period. "The spatial pattern of nitrate concentration shows that the topographic conditions of the Dez River channel also influence the rate of river -groundwater interactions, so that the maximum water exchanges between river and groundwater occur in the convex part of the Dez River meander near the Chamgolak town. This study show that the Dez River has a losing nature and recharges the groundwater but with rates that is vary temporally and spatially.

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Determination of hydraulic boundary conditions for the interaction between surface water and groundwater

Cited by 7 publications

References 3 publications

Radon in groundwater in parts of coastal tracts of southern Kerala, India

Radon in groundwater in parts of coastal tracts of southern Kerala, India

Controls on the spatial and temporal variability of 222Rn in riparian groundwater in a lowland Chalk catchment

Evaluation of the Spatio-Temporal Variability in River and Groundwater Interactions, an Example from South West of Iran

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