Renewal rate estimation of groundwater based on radioactive tracers (3H, 14C) in an unconfined aquifer in a semi-arid area, Iullemeden Basin, Niger

Salle, Corinne Le Gal La; Marlin, Christelle; Leduc, Christian; Taupin, J.D.; Massault, M.; Favreau, Guillaume

doi:10.1016/s0022-1694(01)00491-7

Cited by 101 publications

(37 citation statements)

References 16 publications

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“…The residence time of water within an aquifer is a key parameter in describing catchment storage and may be used to estimate historical recharge rates (Le Gal La Salle et al, 2001;Cook and Robinson, 2002;Cartwright and Morgenstern, 2012;Zhai et al, 2013), elucidate groundwater flow paths (Gardner et al, 2011;Smerdon et al, 2012), calibrate hydraulic models (Mazor and Nativ, 1992;Reilly et al, 1994;Post et al, 2013) and characterize the rate of contaminant Published by Copernicus Publications on behalf of the European Geosciences Union. (Böhlke and Denver 1995;Tesoriero et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…As 3 H is part of the water molecule, there is negligible change to 3 H activities other than decay, and 3 H is an excellent tracer for the movement of water through hydrological systems (Michel, 2004). Used in conjunction with 14 C data, 3 H may also be used to study mixing in shallow aquifers (Le Gal La Salle, 2001;Cartwright and Morgenstern, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Using 14C and 3H to understand groundwater flow and recharge in an aquifer window

Atkinson

Cartwright

Gilfedder

et al. 2014

Hydrol. Earth Syst. Sci.

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Abstract. Knowledge of groundwater residence times and recharge locations is vital to the sustainable management of groundwater resources. Here we investigate groundwater residence times and patterns of recharge in the Gellibrand Valley, southeast Australia, where outcropping aquifer sediments of the Eastern View Formation form an "aquifer window" that may receive diffuse recharge from rainfall and recharge from the Gellibrand River. To determine recharge patterns and groundwater flow paths, environmental isotopes (3H, 14C, δ13C, δ18O, δ2H) are used in conjunction with groundwater geochemistry and continuous monitoring of groundwater elevation and electrical conductivity. The water table fluctuates by 0.9 to 3.7 m annually, implying recharge rates of 90 and 372 mm yr−1. However, residence times of shallow (11 to 29 m) groundwater determined by 14C are between 100 and 10 000 years, 3H activities are negligible in most of the groundwater, and groundwater electrical conductivity remains constant over the period of study. Deeper groundwater with older 14C ages has lower δ18O values than younger, shallower groundwater, which is consistent with it being derived from greater altitudes. The combined geochemistry data indicate that local recharge from precipitation within the valley occurs through the aquifer window, however much of the groundwater in the Gellibrand Valley predominantly originates from the regional recharge zone, the Barongarook High. The Gellibrand Valley is a regional discharge zone with upward head gradients that limits local recharge to the upper 10 m of the aquifer. Additionally, the groundwater head gradients adjacent to the Gellibrand River are generally upwards, implying that it does not recharge the surrounding groundwater and has limited bank storage. 14C ages and Cl concentrations are well correlated and Cl concentrations may be used to provide a first-order estimate of groundwater residence times. Progressively lower chloride concentrations from 10 000 years BP to the present day are interpreted to indicate an increase in recharge rates on the Barongarook High.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Using 14C and 3H to understand groundwater flow and recharge in an aquifer window

Atkinson

Cartwright

Gilfedder

et al. 2014

Hydrol. Earth Syst. Sci.

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“…UNESCO's IHP indicated that only the groundwater which its turn over time is less than 500 years is renewable [3]. Gal La Salle et al (2001) estimated groundwater renewal rate in a semi-arid area in Niger based on radioactive tracers ( 3 H, 14 C) [4]. However, due to the spatio-temporal difference of groundwater recharge, recharge rate is difficult to obtain.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Groundwater Renewability in Beijing Plain Area

Zheng

Teng

Wang

et al. 2011

2011 5th International Conference on Bioinformatics and Biomedical Engineering

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Groundwater is the main water source of Beijing plain area. It plays a vital role in the safety of water supply. Assessment of the groundwater renewability in study area is important to its water resources sustainable utilization. In this study, 5 thematic maps including precipitation, precipitation infiltration coefficient, aquifer structure, slope and, drainage density were selected to integrate using ArcGIS software. Standardization of index values is expressed by membership function. The weights were assigned by analytic hierarchy process (AHP). The result of groundwater renewability zone shows groundwater renewability of Beijing plain area decreases from alluvial fans top to fringe and it is very low in the centre of study area for the small precipitation infiltration coefficient.

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“…Postel et al (1996) proposed that the renewable volume was the annual volume of freshwater via the natural hydrological cycle. Usually, an index such as renewal time or renewal rate is used to evaluate the state of water renewal, and this has been discussed by many researchers (You 2000;Hoppema et al 2001;Le Gal La Salle et al 2001;Masson 2002;Yang et al 2002;Xia et al 2003;Andrejev et al 2004;Yan et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Assessing water renewal of the northern coastal zone in China using a variable fuzzy pattern recognition model

Peng

Zhou

2010

Journal of Hydroinformatics

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Renewal rate estimation of groundwater based on radioactive tracers (3H, 14C) in an unconfined aquifer in a semi-arid area, Iullemeden Basin, Niger

Cited by 101 publications

References 16 publications

Using <sup>14</sup>C and <sup>3</sup>H to understand groundwater flow and recharge in an aquifer window

Using <sup>14</sup>C and <sup>3</sup>H to understand groundwater flow and recharge in an aquifer window

Assessment of the Groundwater Renewability in Beijing Plain Area

Assessing water renewal of the northern coastal zone in China using a variable fuzzy pattern recognition model

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Renewal rate estimation of groundwater based on radioactive tracers (3H, 14C) in an unconfined aquifer in a semi-arid area, Iullemeden Basin, Niger

Cited by 101 publications

References 16 publications

Using &lt;sup&gt;14&lt;/sup&gt;C and &lt;sup&gt;3&lt;/sup&gt;H to understand groundwater flow and recharge in an aquifer window

Using &lt;sup&gt;14&lt;/sup&gt;C and &lt;sup&gt;3&lt;/sup&gt;H to understand groundwater flow and recharge in an aquifer window

Assessment of the Groundwater Renewability in Beijing Plain Area

Assessing water renewal of the northern coastal zone in China using a variable fuzzy pattern recognition model

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Product

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Using <sup>14</sup>C and <sup>3</sup>H to understand groundwater flow and recharge in an aquifer window

Using <sup>14</sup>C and <sup>3</sup>H to understand groundwater flow and recharge in an aquifer window