Isotopic characterization and mass balance reveals groundwater recharge pattern in Chaliyar river basin, Kerala, India

Hameed, A. Shahul; Resmi, T. R.; Suraj, S.; Warrier, C. Unnikrishnan; Sudheesh, M; Deshpande, R.D.

doi:10.1016/j.ejrh.2015.01.003

Cited by 25 publications

(10 citation statements)

References 11 publications

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“…Stable isotope compositions have been applied to distinguish groundwaters (i) generated by surface‐water‐sourced recharge (i.e., from lakes, rivers, and wetlands) and (ii) high‐elevation recharge. Where a clear, identifiable end‐member for surface water can be identified the fraction of a groundwater sample derived from surface‐water‐sourced recharge ( F surface water ) may be estimated (e.g., Chaliyar River, India—Shahul Hameed et al, —and Xishan Karst Aquifer, China—Qin et al, ):

F_{surface water} = \frac{δ_{G} - δ_{G ((), distal)}}{δ_{surface water} - δ_{G ((), distal)}},

where δ surface water represents the isotope composition of surface water generating groundwater recharge (e.g., river, lake, and irrigation return flow), δ G is the isotope composition of the groundwater sample, and δ G (distal) represents the isotope composition of local groundwater that does not contain river water (i.e., groundwater sampled distal to the river; Figures e and b). The methodology relies on a measureble difference between local groundwater and river water (i.e., δ G (distal) ≠ δ surface water ).…”

Section: Recharge Sources and Elevationsmentioning

confidence: 99%

Global Isotope Hydrogeology―Review

Jasechko

2019

Reviews of Geophysics

189

124

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Groundwater 18O/16O, 2H/1H, 13C/12C, 3H, and 14C data can help quantify molecular movements and chemical reactions governing groundwater recharge, quality, storage, flow, and discharge. Here, commonly applied approaches to isotopic data analysis are reviewed, involving groundwater recharge seasonality, recharge elevations, groundwater ages, paleoclimate conditions, and groundwater discharge. Reviewed works confirm and quantify long held tenets: (i) that recharge derives disproportionately from wet season and winter precipitation; (ii) that modern groundwaters comprise little global groundwater; (iii) that “fossil” (>12,000‐year‐old) groundwaters dominate global aquifer storage; (iv) that fossil groundwaters capture late‐Pleistocene climate conditions; (v) that surface‐borne contaminants are more common in younger groundwaters; and (vi) that groundwater discharges generate substantial streamflow. Groundwater isotope data are disproportionately common to midlatitudes and sedimentary basins equipped for irrigated agriculture, but less plentiful across high latitudes, hyperarid deserts, and equatorial rainforests. Some of these underexplored aquifer systems may be suitable targets for future field testing.

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F_{surface water} = \frac{δ_{G} - δ_{G ((), distal)}}{δ_{surface water} - δ_{G ((), distal)}},

Section: Recharge Sources and Elevationsmentioning

confidence: 99%

Global Isotope Hydrogeology―Review

Jasechko

2019

Reviews of Geophysics

189

124

View full text Add to dashboard Cite

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“…Only a few studies have focused on water circulation in the western part of the Western Ghats region of Karnataka through an investigation of the hydrological properties. [2,34,50,51] In addition, the isotopic assessment of hydrology is limited in the western part [52] of the Western Ghats and in Karnataka. [53] This study is the first to focus on the water circulation with an intensive stable isotope approach (samples of river water, groundwater, rainwater; seasonal and spatial sampling) in this part of the Western Ghats and also in the highest rainfall-receiving region in South India (with places like Agumbe receiving 7000-8000 mm annual rainfall).…”

Section: Hydrological Scenario Using Stable Isotopes On the Western Pmentioning

confidence: 99%

Water circulation and governing factors in humid tropical river basins in the central Western Ghats, Karnataka, India

Tripti

Lambs

Gurumurthy

et al. 2015

Rapid Comm Mass Spectrometry

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The narrow coastal strip to the west of the Western Ghats displays unique water characteristics in both tropical river basins investigated. For the smaller and hilly Swarna basin, the dense vegetation (wet canopies) could largely re-evaporate the (intercepted) rain, leading to no marked seasonal or altitude effect on the water isotope values within the basin. The larger Nethravati basin, which stretches farther into the foothills of the Western Ghats, receives winter monsoon water, and thus exhibits a clear seasonal variability in rainfall moisture sources. The degree of water vapor recycling in these wet tropical basins dominates the isotopic composition in this narrow coastal stretch of South India. An insight into the soil water contribution to the river water and groundwater, even in the rainfall-dependent tropical basins of South India, is provided in this study.

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“…For this purpose, water stable isotopes (δ 18 O and δ 2 H) from surface water, groundwater, and precipitation were used. Stable isotopes of hydrogen ( 1 H and 2 H) and oxygen ( 16 O and 18 O) are conservative and can be used as tracers in different types of hydrological research [14][15][16][17][18][19][20]. Two-and three-component mixing models were used to quantify different recharge sources together with soil characteristics and hydrogeological properties of the saturated and unsaturated zones.…”

Section: Introductionmentioning

confidence: 99%

Using Water Stable Isotopes for Identifying Groundwater Recharge Sources of the Unconfined Alluvial Zagreb Aquifer (Croatia)

Parlov

Kovač

Nakić

et al. 2019

Water

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The main purpose of this study was to understand the interactions between precipitation, surface water, and groundwater in the Zagreb aquifer system using water stable isotopes. The Zagreb aquifer is of the unconfined type and strongly hydraulically connected to the Sava River. As the groundwater is the main source of drinking water for one million inhabitants, it is essential to investigate each detail of the recharge processes of the aquifer to ensure adequate protection of the groundwater. Measuring the content of water stable isotopes in surface waters and groundwater enabled the creation of two- and three-component mixing models based on the isotopic mass balance for the purpose of the quantification of each recharge component. The mixing models gave ambiguous results. Observation wells equally distant from the Sava River did not have the same recharge component ratio. This indicated that there were more factors (in addition to the distance from the river) that were affecting groundwater recharge, and the properties of the unsaturated zone and surface cover data were therefore also taken into consideration. The thickness of the unsaturated zone and the characteristics of different soil types were identified as important factors in the recharge of the Zagreb aquifer. The areas with high thickness of the unsaturated zone and well-permeable soil had a very similar recharge component ratio to the areas with small thickness of the unsaturated zone but low-permeable soil.

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Isotopic characterization and mass balance reveals groundwater recharge pattern in Chaliyar river basin, Kerala, India

Cited by 25 publications

References 11 publications

Global Isotope Hydrogeology―Review

Global Isotope Hydrogeology―Review

Water circulation and governing factors in humid tropical river basins in the central Western Ghats, Karnataka, India

Using Water Stable Isotopes for Identifying Groundwater Recharge Sources of the Unconfined Alluvial Zagreb Aquifer (Croatia)

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