Articles | Volume 21, issue 11
https://doi.org/10.5194/hess-21-5953-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-21-5953-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
28 Nov 2017
Research article |
| 28 Nov 2017
| 28 Nov 2017
A multi-tracer approach to constraining artesian groundwater discharge into an alluvial aquifer
Charlotte P. Iverach
Connected Waters Initiative Research Centre, UNSW Sydney, Sydney, NSW 2052,
Australia
School of Biological, Earth and Environmental Sciences, UNSW Sydney, Sydney,
NSW 2052, Australia
Australian Nuclear Science and Technology Organisation, New Illawarra
Rd, Lucas Heights, NSW 2234, Australia
Dioni I. Cendón
Connected Waters Initiative Research Centre, UNSW Sydney, Sydney, NSW 2052,
Australia
School of Biological, Earth and Environmental Sciences, UNSW Sydney, Sydney,
NSW 2052, Australia
Australian Nuclear Science and Technology Organisation, New Illawarra
Rd, Lucas Heights, NSW 2234, Australia
Karina T. Meredith
Australian Nuclear Science and Technology Organisation, New Illawarra
Rd, Lucas Heights, NSW 2234, Australia
Klaus M. Wilcken
Australian Nuclear Science and Technology Organisation, New Illawarra
Rd, Lucas Heights, NSW 2234, Australia
Stuart I. Hankin
Australian Nuclear Science and Technology Organisation, New Illawarra
Rd, Lucas Heights, NSW 2234, Australia
Martin S. Andersen
Connected Waters Initiative Research Centre, UNSW Sydney, Sydney, NSW 2052,
Australia
School of Civil and Environmental Engineering, UNSW Sydney, Sydney, NSW
2052, Australia
Bryce F. J. Kelly
CORRESPONDING AUTHOR
Connected Waters Initiative Research Centre, UNSW Sydney, Sydney, NSW 2052,
Australia
School of Biological, Earth and Environmental Sciences, UNSW Sydney, Sydney,
NSW 2052, Australia
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N. P. Unland, I. Cartwright, D. I. Cendón, and R. Chisari
Hydrol. Earth Syst. Sci., 18, 5109–5124, https://doi.org/10.5194/hess-18-5109-2014, https://doi.org/10.5194/hess-18-5109-2014, 2014
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A. P. Atkinson, I. Cartwright, B. S. Gilfedder, D. I. Cendón, N. P. Unland, and H. Hofmann
Hydrol. Earth Syst. Sci., 18, 4951–4964, https://doi.org/10.5194/hess-18-4951-2014, https://doi.org/10.5194/hess-18-4951-2014, 2014
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Flore Rembert, Marie Léger, Damien Jougnot, and Linda Luquot
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Thomas Hermans, Pascal Goderniaux, Damien Jougnot, Jan H. Fleckenstein, Philip Brunner, Frédéric Nguyen, Niklas Linde, Johan Alexander Huisman, Olivier Bour, Jorge Lopez Alvis, Richard Hoffmann, Andrea Palacios, Anne-Karin Cooke, Álvaro Pardo-Álvarez, Lara Blazevic, Behzad Pouladi, Peleg Haruzi, Alejandro Fernandez Visentini, Guilherme E. H. Nogueira, Joel Tirado-Conde, Majken C. Looms, Meruyert Kenshilikova, Philippe Davy, and Tanguy Le Borgne
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We present results of a hydrologic study of groundwater recharge near the city of Arequipa, Peru. There are a number of springs below a high-elevation salar that show some chemical evidence of connectivity to the salar basin, possibly facilitated by faults in region. These results suggest that this salar basin is not a strictly terminal lake but that some interbasin groundwater flow exists. In addition, a high-elevation forest ecosystem seems important for groundwater recharge as well.
Kun Jia, Cara C. M. Manning, Ashlee Jollymore, and Roger D. Beckie
Hydrol. Earth Syst. Sci., 25, 4983–4993, https://doi.org/10.5194/hess-25-4983-2021, https://doi.org/10.5194/hess-25-4983-2021, 2021
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The effect of soluble reduced iron, Fe(II), on fluorescence data (excitation–emission matrix spectra parsed using parallel factor analysis) is difficult to quantitatively assign. We added varying quantities of Fe(II) into groundwater from an anaerobic aquifer. We showed that the overall fluorescence intensity decreased nonlinearly as Fe(II) increased from 1 to 306 mg L-1 but that the parallel factor analysis component distribution was relatively insensitive to Fe(II) concentration.
Ashley N. Martin, Karina Meredith, Andy Baker, Marc D. Norman, and Eliza Bryan
Hydrol. Earth Syst. Sci., 25, 3837–3853, https://doi.org/10.5194/hess-25-3837-2021, https://doi.org/10.5194/hess-25-3837-2021, 2021
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We measured the silicon isotopic composition of groundwater from Rottnest Island, Western Australia, to investigate water–rock interactions in a coastal aquifer. Silicon isotopic ratios varied spatially across the island and were related to secondary mineral formation and vertical mixing within the aquifer. We find that silicate dissolution occurs in the freshwater–seawater transition zone, supporting the recent recognition of submarine groundwater discharge in the oceanic silicon isotope cycle.
Djamil Al-Halbouni, Robert A. Watson, Eoghan P. Holohan, Rena Meyer, Ulrich Polom, Fernando M. Dos Santos, Xavier Comas, Hussam Alrshdan, Charlotte M. Krawczyk, and Torsten Dahm
Hydrol. Earth Syst. Sci., 25, 3351–3395, https://doi.org/10.5194/hess-25-3351-2021, https://doi.org/10.5194/hess-25-3351-2021, 2021
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The rapid decline of the Dead Sea level since the 1960s has provoked a dynamic reaction from the coastal groundwater system, with physical and chemical erosion creating subsurface voids and conduits. By combining remote sensing, geophysical methods, and numerical modelling at the Dead Sea’s eastern shore, we link groundwater flow patterns to the formation of surface stream channels, sinkholes and uvalas. Better understanding of this karst system will improve regional hazard assessment.
Shovon Barua, Ian Cartwright, P. Evan Dresel, and Edoardo Daly
Hydrol. Earth Syst. Sci., 25, 89–104, https://doi.org/10.5194/hess-25-89-2021, https://doi.org/10.5194/hess-25-89-2021, 2021
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We evaluate groundwater recharge rates in a semi-arid area that has undergone land-use changes. The widespread presence of old saline groundwater indicates that pre-land-clearing recharge rates were low and present-day recharge rates are still modest. The fluctuations of the water table and tritium activities reflect present-day recharge rates; however, the water table fluctuation estimates are unrealistically high, and this technique may not be suited for estimating recharge in semi-arid areas.
Brady A. Flinchum, Eddie Banks, Michael Hatch, Okke Batelaan, Luk J. M. Peeters, and Sylvain Pasquet
Hydrol. Earth Syst. Sci., 24, 4353–4368, https://doi.org/10.5194/hess-24-4353-2020, https://doi.org/10.5194/hess-24-4353-2020, 2020
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Identifying and quantifying recharge processes linked to ephemeral surface water features is challenging due to their episodic nature. We use a unique combination of well-established near-surface geophysical methods to provide evidence of a surface and groundwater connection in a flat, semi-arid region north of Adelaide, Australia. We show that a combined geophysical approach can provide a unique perspective that can help shape the hydrogeological conceptualization.
Karina T. Meredith, Andy Baker, Martin S. Andersen, Denis M. O'Carroll, Helen Rutlidge, Liza K. McDonough, Phetdala Oudone, Eliza Bryan, and Nur Syahiza Zainuddin
Hydrol. Earth Syst. Sci., 24, 2167–2178, https://doi.org/10.5194/hess-24-2167-2020, https://doi.org/10.5194/hess-24-2167-2020, 2020
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Dissolved organic carbon within groundwater and processes controlling it remain largely unknown. The average groundwater concentration at this coastal site was 5 times higher than the global median, doubling with depth, but with no change in chromatographic character. The lack of oxygen limited the rate of organic matter processing, leading to enhanced preservation. Changes in coastal hydrology could lead to the flux of unreacted organic carbon.
Andrea Palacios, Juan José Ledo, Niklas Linde, Linda Luquot, Fabian Bellmunt, Albert Folch, Alex Marcuello, Pilar Queralt, Philippe A. Pezard, Laura Martínez, Laura del Val, David Bosch, and Jesús Carrera
Hydrol. Earth Syst. Sci., 24, 2121–2139, https://doi.org/10.5194/hess-24-2121-2020, https://doi.org/10.5194/hess-24-2121-2020, 2020
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Coastal areas are highly populated and seawater intrusion endangers the already scarce freshwater resources. We use, for the first time, a geophysical experiment called cross-hole electrical resistivity tomography to monitor seawater intrusion dynamics. The technique relies on readings of rock and water electrical conductivity to detect salt in the aquifer. Two years of experiment allowed us to reveal variations in aquifer salinity due to natural seasonality, heavy-rain events and droughts.
Nathan A. Wales, Jesus D. Gomez-Velez, Brent D. Newman, Cathy J. Wilson, Baptiste Dafflon, Timothy J. Kneafsey, Florian Soom, and Stan D. Wullschleger
Hydrol. Earth Syst. Sci., 24, 1109–1129, https://doi.org/10.5194/hess-24-1109-2020, https://doi.org/10.5194/hess-24-1109-2020, 2020
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Rapid warming in the Arctic is causing increased permafrost temperatures and ground ice degradation. To study the effects of ice degradation on water distribution, tracer was applied to two end members of ice-wedge polygons – a ubiquitous landform in the Arctic. End member type was found to significantly affect water distribution as lower flux was observed with ice-wedge degradation. Results suggest ice degradation can influence partitioning of sequestered carbon as carbon dioxide or methane.
Brighid É. Ó Dochartaigh, Alan M. MacDonald, Andrew R. Black, Jez Everest, Paul Wilson, W. George Darling, Lee Jones, and Mike Raines
Hydrol. Earth Syst. Sci., 23, 4527–4539, https://doi.org/10.5194/hess-23-4527-2019, https://doi.org/10.5194/hess-23-4527-2019, 2019
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We provide evidence of high groundwater storage and flow in catchments with active glaciers. Groundwater is found within gravels at the front of glaciers and replenished by both ice melt and precipitation. We studied a glacier in Iceland for 3 years, characterising the aquifer properties and measuring groundwater, river flow and precipitation. The results are important for accurately measuring meltwater and show that groundwater can provide strategic water supplies in de-glaciating catchments.
Katie Coluccio and Leanne Kaye Morgan
Hydrol. Earth Syst. Sci., 23, 4397–4417, https://doi.org/10.5194/hess-23-4397-2019, https://doi.org/10.5194/hess-23-4397-2019, 2019
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Braided rivers are uncommon internationally but are important freshwater resources. However, there is limited understanding of how characteristics unique to braided rivers affect groundwater–surface water flow paths. This article reviews prior studies that have investigated groundwater–surface water interactions in these rivers and their associated aquifers to provide guidance on methodologies most suitable for future work in braided rivers and highlight gaps in current knowledge.
Gabriel C. Rau, Vincent E. A. Post, Margaret Shanafield, Torsten Krekeler, Eddie W. Banks, and Philipp Blum
Hydrol. Earth Syst. Sci., 23, 3603–3629, https://doi.org/10.5194/hess-23-3603-2019, https://doi.org/10.5194/hess-23-3603-2019, 2019
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The flow of water is often inferred from water levels and gradients whose measurements are considered trivial despite the many steps and complexity of the instruments involved. We systematically review the four measurement steps required and summarise the systematic errors. To determine the accuracy with which flow can be resolved, we quantify and propagate the random errors. Our results illustrate the limitations of current practice and provide concise recommendations to improve data quality.
Eva Sebok and Sascha Müller
Hydrol. Earth Syst. Sci., 23, 3305–3317, https://doi.org/10.5194/hess-23-3305-2019, https://doi.org/10.5194/hess-23-3305-2019, 2019
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Exchange fluxes between groundwater and surface waters can be quantified using temperature measurements from the upper sediment layers of streams and lakes assuming the thermal properties of sediments. This study quantified the natural variabiilty in sediment thermal conductivity in the vertical direction at the bed of surface waters and showed that fluxes can change by up to +/-75 % depending on using standard literature values or in situ measurements for sediment thermal conductivity.
Benoit Vittecoq, Pierre-Alexandre Reninger, Frédéric Lacquement, Guillaume Martelet, and Sophie Violette
Hydrol. Earth Syst. Sci., 23, 2321–2338, https://doi.org/10.5194/hess-23-2321-2019, https://doi.org/10.5194/hess-23-2321-2019, 2019
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Water resource management on volcanic islands is challenging and faces several issues. Taking advantage of new heliborne geophysical technology, correlated with borehole and spring data, we develop a watershed-scale conceptual model and demonstrate that permeability increases with age for the studied formations. Moreover, complex geological structures lead to preferential flow circulations and to discrepancy between topographical and hydrogeological watersheds, influencing river flow rates.
Carme Barba, Albert Folch, Núria Gaju, Xavier Sanchez-Vila, Marc Carrasquilla, Alba Grau-Martínez, and Maira Martínez-Alonso
Hydrol. Earth Syst. Sci., 23, 139–154, https://doi.org/10.5194/hess-23-139-2019, https://doi.org/10.5194/hess-23-139-2019, 2019
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Managed aquifer recharge allows increasing water resources and can be used to improve water quality. We assess the degradative capabilities of infiltrating pollutants by mapping the composition of microbial communities linked to periods of infiltration/drought. From samples of soil, surface and groundwater, we found some microbial species involved in the nitrogen and carbon cycles. Furthermore, we found that, during infiltration, microbial abundance rises, increasing degradative capabilities.
Katarina David, Wendy Timms, Catherine E. Hughes, Jagoda Crawford, and Dayna McGeeney
Hydrol. Earth Syst. Sci., 22, 6023–6041, https://doi.org/10.5194/hess-22-6023-2018, https://doi.org/10.5194/hess-22-6023-2018, 2018
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We investigated the wetland system classified as a threatened ecological community and found that organic-rich soil close to surfaces retains significant moisture necessary for ecosystems. At the base of the swamp an identified sand layer allows relatively rapid drainage and lateral groundwater interaction. Evaporation estimated from stable water isotopes from sediments indicated that groundwater contribution to the swamp is significant in dry periods, supporting ecosystems when water is scarce.
Lucheng Zhan, Jiansheng Chen, Ling Li, and David A. Barry
Hydrol. Earth Syst. Sci., 22, 4449–4454, https://doi.org/10.5194/hess-22-4449-2018, https://doi.org/10.5194/hess-22-4449-2018, 2018
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Using the arithmetic averages of precipitation isotope values, Wu et al. (2017) concluded that the Badain Jaran Desert (BJD) groundwater is recharged by modern local meteoric water. However, based on weighted mean precipitation isotope values, our further analysis shows that modern precipitation on the Qilian Mountains is more likely to be the main source of the groundwater and lake water in the BJD, as found. We believe this comment provides an important improvement for their study.
Dongmei Han and Matthew J. Currell
Hydrol. Earth Syst. Sci., 22, 3473–3491, https://doi.org/10.5194/hess-22-3473-2018, https://doi.org/10.5194/hess-22-3473-2018, 2018
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Based on hydrochemical and isotopic analysis, we investigated the potential hydrogeological processes responsible for the increasing groundwater salinity in the coastal aquifer of Yang–Dai River coastal plain, northern China. Seawater intrusion is the major aspect and can be caused by vertical infiltration along the riverbed at the downstream areas, and lateral inflow into fresh aquifer. Geothermal water also makes a significant contribution to increasing the groundwater salinity.
Stephan Costabel, Christoph Weidner, Mike Müller-Petke, and Georg Houben
Hydrol. Earth Syst. Sci., 22, 1713–1729, https://doi.org/10.5194/hess-22-1713-2018, https://doi.org/10.5194/hess-22-1713-2018, 2018
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Laboratory experiments using water-filled sand and gravel samples with significant contents of iron oxide coatings were performed to identify the relationship between effective hydraulic radius and nuclear magnetic resonance (NMR) response. Our interpretation approach for the NMR data leads to reliable estimates of hydraulic conductivity without calibration, but is limited to coarse material for physical reasons. An NMR-based observation system for iron clogging in boreholes is planned.
Etienne Bresciani, Roger H. Cranswick, Eddie W. Banks, Jordi Batlle-Aguilar, Peter G. Cook, and Okke Batelaan
Hydrol. Earth Syst. Sci., 22, 1629–1648, https://doi.org/10.5194/hess-22-1629-2018, https://doi.org/10.5194/hess-22-1629-2018, 2018
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This article tackles the problem of finding the origin of groundwater in basin aquifers adjacent to mountains. In particular, we aim to determine whether the recharge occurs predominantly through stream infiltration along the mountain front or through subsurface flow from the mountain. To this end, we discuss the use of routinely measured variables: hydraulic head, chloride and electrical conductivity. A case study from Australia demonstrates the approach.
Bernd Kohlhepp, Robert Lehmann, Paul Seeber, Kirsten Küsel, Susan E. Trumbore, and Kai U. Totsche
Hydrol. Earth Syst. Sci., 21, 6091–6116, https://doi.org/10.5194/hess-21-6091-2017, https://doi.org/10.5194/hess-21-6091-2017, 2017
Virgil Drăguşin, Sorin Balan, Dominique Blamart, Ferenc Lázár Forray, Constantin Marin, Ionuţ Mirea, Viorica Nagavciuc, Iancu Orăşeanu, Aurel Perşoiu, Laura Tîrlă, Alin Tudorache, and Marius Vlaicu
Hydrol. Earth Syst. Sci., 21, 5357–5373, https://doi.org/10.5194/hess-21-5357-2017, https://doi.org/10.5194/hess-21-5357-2017, 2017
Monique Beyer, Uwe Morgenstern, Rob van der Raaij, and Heather Martindale
Hydrol. Earth Syst. Sci., 21, 4213–4231, https://doi.org/10.5194/hess-21-4213-2017, https://doi.org/10.5194/hess-21-4213-2017, 2017
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The determination of groundwater age can aid characterization of aquifers, providing information on groundwater mixing, flow, volume, and recharge rates. Here we assess a recently discovered groundwater age tracer, Halon-1301. Its performance as an age tracer is assessed against six other well-established, widely used age tracers in 302 groundwater samples. We show Halon-1301 reliably inferred age, thus potentially becoming a useful groundwater age tracer where other tracers are compromised.
Colby M. Steelman, Celia S. Kennedy, Donovan C. Capes, and Beth L. Parker
Hydrol. Earth Syst. Sci., 21, 3105–3123, https://doi.org/10.5194/hess-21-3105-2017, https://doi.org/10.5194/hess-21-3105-2017, 2017
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The Eramosa River flows along a fractured sedimentary bedrock aquifer with large subsurface channel features. This study examines the potential for groundwater–surface water exchange beneath the fractured bedrock riverbed and the impacts of seasonal and intraseasonal flow system transience on the geoelectrical properties of the rock. Our results will have implications to the conceptual understanding of groundwater–surface water interaction within fractured bedrock river environments.
Linsong Wang, Chao Chen, Jinsong Du, and Tongqing Wang
Hydrol. Earth Syst. Sci., 21, 2905–2922, https://doi.org/10.5194/hess-21-2905-2017, https://doi.org/10.5194/hess-21-2905-2017, 2017
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The North China Plain (NCP), as the interest region in this study, is one of the most uniformly and extensively altered areas due to overexploitation of groundwater by humans. Here, we use GRACE and GPS to study the seasonal and long-term mass change and its resulting vertical displacement. We also removed the vertical rates, which are induced by terrestrial water storage (TWS) from GPS-derived data to obtain the corrected vertical velocities caused by tectonic movement and human activities.
Klaus Haaken, Gian Piero Deidda, Giorgio Cassiani, Rita Deiana, Mario Putti, Claudio Paniconi, Carlotta Scudeler, and Andreas Kemna
Hydrol. Earth Syst. Sci., 21, 1439–1454, https://doi.org/10.5194/hess-21-1439-2017, https://doi.org/10.5194/hess-21-1439-2017, 2017
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The paper presents a general methodology that will help understand how freshwater and saltwater may interact in natural porous media, with a particular view at practical applications such as the storage of freshwater underground in critical areas, e.g., semi-arid zones around the Mediterranean sea. The methodology is applied to a case study in Sardinia and shows how a mix of advanced monitoring and mathematical modeling tremendously advance our understanding of these systems.
Donald O. Rosenberry, Martin A. Briggs, Emily B. Voytek, and John W. Lane
Hydrol. Earth Syst. Sci., 20, 4323–4339, https://doi.org/10.5194/hess-20-4323-2016, https://doi.org/10.5194/hess-20-4323-2016, 2016
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The remaining populations of the endangered dwarf wedgemussel (DWM) (Alasmidonta heterodon) in the upper Delaware River, northeastern USA, were thought to be located in areas of substantial groundwater discharge to the river. Physical, thermal, and geophysical methods applied at several spatial scales indicate that DWM are located within or directly downstream of areas of substantial groundwater discharge to the river. DWM may depend on groundwater discharge for their survival.
T. McCormack, O. Naughton, P. M. Johnston, and L. W. Gill
Hydrol. Earth Syst. Sci., 20, 2119–2133, https://doi.org/10.5194/hess-20-2119-2016, https://doi.org/10.5194/hess-20-2119-2016, 2016
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In this study, the influence of surface water–groundwater interaction on the nutrient flux in a lowland karst catchment in western Ireland was investigated with the aid of alkalinity sampling and a hydrological model. Results indicated that denitrification within a number of ephemeral lakes is the main process reducing nitrogen concentrations within the turloughs, whereas phosphorus loss is thought to occur mostly via sedimentation and subsequent soil deposition.
Dongmei Han, Xianfang Song, and Matthew J. Currell
Hydrol. Earth Syst. Sci., 20, 1983–1999, https://doi.org/10.5194/hess-20-1983-2016, https://doi.org/10.5194/hess-20-1983-2016, 2016
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We report new data for carbon and sulfur isotopes of the groundwater flow system in a coastal carbonate aquifer of northeast China. It shows how these can be used to determine the major processes controlling sulfate cycling and transport. Hopefully the study will be of broad international interest, and is expected to improve the understanding of techniques to determine impacts on groundwater quality and flow, leading to improved groundwater protection and monitoring strategies.
W. A. Timms, R. Crane, D. J. Anderson, S. Bouzalakos, M. Whelan, D. McGeeney, P. F. Rahman, and R. I. Acworth
Hydrol. Earth Syst. Sci., 20, 39–54, https://doi.org/10.5194/hess-20-39-2016, https://doi.org/10.5194/hess-20-39-2016, 2016
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Low permeability sediments and rock can leak slowly, yet can act as important barriers to flow for resource development and for waste sequestration. Relatively rapid and reliable hydraulic tests of "tight" geological materials are possible by accelerating gravity. Results from geotechnical centrifuge testing of drill core and in situ pore pressure monitoring were compared with a regional flow model, and considered in the context of inherent geological variability at site and formation scale.
M. J. Hendry, E. Schmeling, L. I. Wassenaar, S. L. Barbour, and D. Pratt
Hydrol. Earth Syst. Sci., 19, 4427–4440, https://doi.org/10.5194/hess-19-4427-2015, https://doi.org/10.5194/hess-19-4427-2015, 2015
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Improvements and limitations to the measurement δ2H and δ18O of pore waters in geologic core samples using laser spectrometry are presented. These included the use of a δ2H spike to assess the extent of drill fluid contamination and the effect of storage time and type of sample bag on pore water values.
M. Beyer, R. van der Raaij, U. Morgenstern, and B. Jackson
Hydrol. Earth Syst. Sci., 19, 2775–2789, https://doi.org/10.5194/hess-19-2775-2015, https://doi.org/10.5194/hess-19-2775-2015, 2015
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We assess the potential of Halon-1301 as a new groundwater age tracer, which had not been assessed in detail. We determine Halon-1301 and infer age in 17 New Zealand groundwater samples and various modern waters. Halon-1301 reliably inferred age in 71% of the sites within 1 SD of the ages inferred from tritium and SF6. The remaining (anoxic) waters show reduced concentrations of Halon-1301 along with even further reduced concentrations of CFCs. The reason(s) for this need to be further assessed.
A. C. King, M. Raiber, D. I. Cendón, M. E. Cox, and S. E. Hollins
Hydrol. Earth Syst. Sci., 19, 2315–2335, https://doi.org/10.5194/hess-19-2315-2015, https://doi.org/10.5194/hess-19-2315-2015, 2015
M. Huebsch, F. Grimmeisen, M. Zemann, O. Fenton, K. G. Richards, P. Jordan, A. Sawarieh, P. Blum, and N. Goldscheider
Hydrol. Earth Syst. Sci., 19, 1589–1598, https://doi.org/10.5194/hess-19-1589-2015, https://doi.org/10.5194/hess-19-1589-2015, 2015
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Two different in situ spectrophotometers, which were used in the field to determine highly time resolved nitrate-nitrogen (NO3-N) concentrations at two distinct spring discharge sites, are compared: a double and a multiple wavelength spectrophotometer. The objective of the study was to review the hardware options, determine ease of calibration, accuracy, influence of additional substances and to assess positive and negative aspects of the two sensors as well as troubleshooting and trade-offs.
A. Armandine Les Landes, L. Aquilina, P. Davy, V. Vergnaud-Ayraud, and C. Le Carlier
Hydrol. Earth Syst. Sci., 19, 1413–1426, https://doi.org/10.5194/hess-19-1413-2015, https://doi.org/10.5194/hess-19-1413-2015, 2015
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The crystalline rock aquifers of the Armorican Massif present clear evidence of a marine origin of the saline component in the fluids on the regional scale. High chloride concentrations are attributed to three past marine transgressions. The relationship between chloride concentration and transgression age provides constraints for the timescales of fluid circulation. This time frame is useful information for developing conceptual models of the paleo-functioning of Armorican aquifers.
J. F. Dean, J. A. Webb, G. E. Jacobsen, R. Chisari, and P. E. Dresel
Hydrol. Earth Syst. Sci., 19, 1107–1123, https://doi.org/10.5194/hess-19-1107-2015, https://doi.org/10.5194/hess-19-1107-2015, 2015
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This paper examines modern and historical groundwater recharge rates to determine the impacts of reforestation in south-eastern Australia. This study shows that over both the long and short term, groundwater recharge in the study area occurs predominantly in the lower catchment areas. The results of this study show that spatial variations in recharge are important considerations for locating tree plantations, especially when looking to conserve water for downstream users in low rainfall regions.
F. Liu, X. Song, L. Yang, Y. Zhang, D. Han, Y. Ma, and H. Bu
Hydrol. Earth Syst. Sci., 19, 551–565, https://doi.org/10.5194/hess-19-551-2015, https://doi.org/10.5194/hess-19-551-2015, 2015
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Due to intensive groundwater exploitation in energy base, significant changes in groundwater system will take place. This research identified the origin and geochemical evolution of groundwater in the Subei Lake basin under the influence of human activity, enhancing the knowledge of lake basins in groundwater discharge area and providing valuable groundwater information for decision makers to formulate sustainable groundwater management strategies for other similar lake basins in arid regions.
Z. Zhang, H. Hu, F. Tian, X. Yao, and M. Sivapalan
Hydrol. Earth Syst. Sci., 18, 3951–3967, https://doi.org/10.5194/hess-18-3951-2014, https://doi.org/10.5194/hess-18-3951-2014, 2014
C. E. Bon, A. S. Reeve, L. Slater, and X. Comas
Hydrol. Earth Syst. Sci., 18, 953–965, https://doi.org/10.5194/hess-18-953-2014, https://doi.org/10.5194/hess-18-953-2014, 2014
U. Lauber, W. Ufrecht, and N. Goldscheider
Hydrol. Earth Syst. Sci., 18, 435–445, https://doi.org/10.5194/hess-18-435-2014, https://doi.org/10.5194/hess-18-435-2014, 2014
B. Rogiers, K. Beerten, T. Smeekens, D. Mallants, M. Gedeon, M. Huysmans, O. Batelaan, and A. Dassargues
Hydrol. Earth Syst. Sci., 17, 5155–5166, https://doi.org/10.5194/hess-17-5155-2013, https://doi.org/10.5194/hess-17-5155-2013, 2013
N. P. Unland, I. Cartwright, M. S. Andersen, G. C. Rau, J. Reed, B. S. Gilfedder, A. P. Atkinson, and H. Hofmann
Hydrol. Earth Syst. Sci., 17, 3437–3453, https://doi.org/10.5194/hess-17-3437-2013, https://doi.org/10.5194/hess-17-3437-2013, 2013
G. Mongelli, S. Monni, G. Oggiano, M. Paternoster, and R. Sinisi
Hydrol. Earth Syst. Sci., 17, 2917–2928, https://doi.org/10.5194/hess-17-2917-2013, https://doi.org/10.5194/hess-17-2917-2013, 2013
X. Chen, W. Dong, G. Ou, Z. Wang, and C. Liu
Hydrol. Earth Syst. Sci., 17, 2569–2579, https://doi.org/10.5194/hess-17-2569-2013, https://doi.org/10.5194/hess-17-2569-2013, 2013
Cited articles
Acworth, R. I., Timms, W. A., Kelly, B. F. J., McGeeney, D. E., Ralph, T. J., Larkin, Z. T., and Rau, G. C.: Late Cenozoic paleovalley fill sequence from the Southern Liverpool Plains, New South Wales – implications for groundwater resource evaluation, Aus. J. Earth. Sci., 62, 657–680, 2015.
Airey, P. L., Calf, G. E., Campbell, B. L., Hartley, P. E., Roman, D., and Habermehl, M. A.: Aspects of the isotope hydrology of the Great Artesian Basin, Australia, International Symposium on Isotope Hydrology, Germany, 1978.
Amiri, V., Nakhaei, M., Lak, R., and Kholghi, M.: Geophysical, isotopic, and hydrogeochemical tools to identify potential impacts on coastal groundwater resources from Urmia hypersaline Lake, NW Iran, Environ. Sci. Poll. Res., 23, 16738–16760, 2016.
Anderson, M. P. and Woessner, W. W.: Applied Groundwater Modelling: Simulation of Flow and Advective Transport, Academic Press, ISBN-10: 0-12-059485-4, London, 1992.
Andrews, J. N. and Fontes, J.-C.: Comment on “Chlorine 36 dating of very old groundwater, 3, Further results on the Great Artesian Basin, Australia” by T. Torgersen et al., Water Resour. Res., 296, 1871–1874, 1993.
Appelo, C. J. and Postma, D. (Eds.): Geochemistry, Groundwater and Pollution, 2nd Edition, Balkema, Rotterdam, https://doi.org/10.1201/9781439833544, 2005.
Ball, J. W. and Nordstrom, D. K.: User's manual for WATEQ4F, with revised thermodynamic data base and text cases for calculating speciation of major, trace, and redox elements in natural waters, USGS Numbered Series Report, 91–183, 1991.
Barrett, C.: Upper Namoi groundwater source – status report 2011, NSW Department of Primary Industries, Office of Water, Sydney, 2012.
Barnett, B., Townley, L. R., Post, V., Evans, R. E., Hunt, R. J., Peeters, L., Richardson, S., Werner, A. D., Knapton, A., and Boronkay, A.: Australian groundwater modelling guidelines, Waterlines report, National Water Commission, Canberra, 2012.
Bentley, H. W., Phillips, F. M., Davis, S. N., Habermehl, M. A., Airey, P. L., Calf, G. E., Elmore, D., Gove, H. E., and Torgersen, T.: Chlorine 36 dating of very old groundwater. 1. The Great Artesian Basin, Australia, Water Resour. Res. 22, 1991–2001, 1986.
Beven, K.: Environmental Modelling: An Uncertain Future?, Routledge, ISBN-13: 978-0415457590, ISBN-10: 0415457599, Oxon, 2009.
Calf, G. E.: An investigation of recharge to the Namoi Valley aquifers using environmental isotopes, Aust. J. Soil Res., 16, 197–207, 1978.
Cartwright, I., Weaver, T., Cendón, D. I., and Swane, I.: Environmental isotopes as indicators of inter-aquifer mixing, Wimmera region, Murray Basin, Southeast Australia, Chem. Geol., 277, 214–226, 2010.
Cartwright, I., Fifield, L. K., and Morgenstern, U.: Using 3H and 14C to constrain the degree of closed-system dissolution of calcite in groundwater, Appl. Geochem., 32, 118–128, 2013.
Cendón, D. I., Larsen, J. R., Jones, B. G., Nanson, G. C., Rickleman, D., Hankin, S. I., Pyeyo, J. J., and Maroulis, J.: Freshwater recharge into a shallow saline groundwater system, Cooper Creek floodplain, Queensland, Australia, J. Hydrol., 392, 150–163, 2010.
Cendón, D. I., Hankin, S. I., Williams, J. P., van der Ley, M., Peterson, M., Hughes, C. E., Meredith, K., Graham, I. T., Hollins, S. E., Levchenko, V., and Chisan, R.: Groundwater residence time in a dissected and weathered sandstone plateau: Kulnura-Mangrove Mountain aquifer, NSW, Australia, Aus. J. Earth Sci., 61, 475–499, 2014.
Chen, Z., Nie, Z., Zhang, G., Wan, L., and Shen, J.: Environmental isotopic study on the recharge and residence time of groundwater in the Heihe River Basin, northwestern China, Hydrogeol. J., 14, 1635–1651, 2006.
Clark, I. D. and Fritz, P. (Eds.): Age Dating Old Groundwater, Environmental Isotopes in Hydrogeology, CRC Press, USA, 1997.
Costelloe, J. F., Irvine, E. C., Weestern, A. W., and Tyler, M.: Identifying fluvial recharge and artesian upwards leakage contributions to arid zone shallow, unconfined groundwater, Chem. Geol., 326–327, 189–200, 2012.
CSIRO: Water availability in the Namoi, A report to the Australian Government from the CSIRO Murray-Darling Basin Sustainable Yields Project, CSIRO, Australia, 154 pp., 2007.
Currell, M. J., Werner, A. D., McGrath, C., Webb, J. A., and Berkman, M.: Problems with the application of hydrogeological science to regulation of Australian mining projects: Carmichael Mine and Doongmabulla Springs, J. Hydrol., 548, 674–682, 2017.
Dawes, W. R., Gilfedder, M., Walker, G. R., and Evans, W. R.: Biophysical modelling of catchment-scale surface water and groundwater response to land-use change, Math. Comp. Sim., 64, 3–12, 2004.
DPI Water: (Department of Primary Industries (DPI) Water): NSW Government, Namoi Alluvium Water Resource Plan (GW14), Status and Issues Paper, available at: http://www.water.nsw.gov.au/__data/assets/pdf_file/0020/701732/Status-and-Issues-Paper-Namoi-GW-WRP.pdf, last access: 6 June 2017.
Duvert, C., Stewart, M. K., Cendón, D. I., and Raiber, M.: Time series of tritium, stable isotopes and chloride reveal short-term variations in groundwater contribution to a stream, Hydrol. Earth Syst. Sci., 20, 257–277, https://doi.org/10.5194/hess-20-257-2016, 2016.
Edmunds, W. M.: Geochemistry's vital contribution to solving water resource problems, Appl. Geochem., 24, 1058–1073, 2009.
Fink, D., Hotchkis, M., Hua, Q., Jacobsen, G., Smith, A. M., Zoppi, U., Child, D., Mifsud, C., van der Gaast, H., Williams, A., and Williams, M.: The ANTARES AMS facility at ANSTO, Nucl. Instrum. Meth. B, 223–224, 109–115, 2004.
Gardner, W. P., Harrington, G. A., and Smerdon, B. D.: Using excess 4He to quantify variability in aquitard leakage, J. Hydrol., 468–469, 63–75, 2012.
Giambastiani, B. M. S., McCallum, A. M., Andersen, M. S., Kelly, B. F. J., and Acworth, R. I.: Understanding groundwater processes by representing aquifer heterogeneity in the Maules Creek Catchment, Namoi Valley (New South Wales, Australia), Hydrogeol. J., 20, 1027–1044, 2012.
Golder Associates Santos Gunnedah Basin CSG Project: Groundwater impact study – Kahlua pilot test, Report No. 107626100-005-Rev1, Golder Associates, Australia, 2010.
Herczeg, A. L., Torgersen, T., Chivas, A. R., and Havermehl, M. A.: Geochemistry of ground waters from the Great Artesian Basin, Australia, J. Hydrol., 126, 225–245, 1991.
Hocking, M. and Kelly, B. F. J.: Groundwater recharge and time lag measurement through Vertosols using impulse response functions, J. Hydrol., 535, 22–35, 2016.
Jasechko, S.: Partitioning young and old groundwater with geochemical tracers, Chem. Geol., 427, 35–42, 2016.
Kelly, B. F. J., Merrick, N., Dent, B., Milne-Home, W., and Yates, D.: Groundwater Knowledge and Gaps in the Namoi Catchment Management Area, Cotton Catchment Communities CRC, University of Technology, Sydney – National Centre for Groundwater Management Report, NCGM 2007/1, 70 pp., 2007.
Kelly, B. F. J., Timms, W., Ralph, T. J., Giambastiani, B. M. S., Communian, A., McCallum, A. M., Andersen, M. S., Blakers, R. S., Acworth, R. I., and Baker, A.: A reassessment of the Lower Namoi Catchment aquifer architecture and hydraulic connectivity with reference to climate drivers, Aus. J. Earth Sci., 61, 501–511, 2014.
Lower Namoi Groundwater: NSW Government Department of Water and Energy, DWE_08_011, available at: http://www.water.nsw.gov.au/water-management/water-sharing/plans_commenced/water-source/upper-lower-namoi-gw (last access: 20 September 2017), 2008.
Love, A. J., Herczeg, A. L., Sampson, L., Cresswell, R. G., and Fifield, L. K.: Sources of chloride and implications for 36Cl dating of old groundwater, southwestern Great Artesian Basin, Australia, Water Resour. Res., 36, 1561–1574, 2000.
Mahara, Y., Habermehl, M. A., Miyakawa, K., Shimada, J., and Mizuochi, Y.: Can the 4He clock be calibrated by 36Cl for groundwater dating?, Nucl. Instrum. Meth. B, 259, 536–546, 2007.
Mahara, Y., Habermahl, M. A., Hasegawa, T., Nakata, K., Ransley, T. R., Hatano, T., Mizuochi, Y., Kobayashi, H., Nimomiya, A., Senior, B. R., Yasuda, H., and Obta, T.: Groundwater dating by estimation of groundwater flow velocity and dissolved 4He accumulation rate calibrated by 36Cl in the Great Artesian Basin, Australia, Earth Planet. Sci. Lett., 287, 43–56, 2009.
Martinez, J. L., Raiber, M., and Cendón, D. I.: Using 3D geological modelling and geochemical mixing models to characterise alluvial aquifer recharge sources in the upper Condamine River catchment, Queensland, Australia, Sci. Tot. Environ., 574, 1–18, 2017.
Mawhinney, W.: Namoi Water Quality Project 2002–2007 – Final report, NSW Office of Water, Sydney, 39 pp., available at: http://pandora.nla.gov.au/pan/126486/20110413-1101/namoiwater.pdf (last access: 20 September 2017), 2011.
McLean, W. A.: Hydrogeochemical evolution and variability in a stressed alluvial aquifer system: Lower Namoi River catchment, NSW, PhD thesis, University of New South Wales, Sydney (unpublished), 2003.
Merrick, N. P.: Optimisation Techniques for Groundwater Management, PhD Thesis, University of Technology, Sydney (unpublished), 551 pp., 2000.
Middlemis, H., Merrick, N. P., and Ross, J. B.: Groundwater Flow Modelling Guideline, Aquaterra Consulting Pty Ltd, Consultancy Report, Perth, November 2000.
Mook, W. G. and van der Plicht, J.: Reporting 14C activities and concentrations, Radiocarbon, 41, 227–239, 1999.
Moya, C. E., Raiber, M., Taulis, M., and Cox, M. E.: Using environmental isotopes and dissolved methane concentrations to constrain hydrochemical processes and inter-aquifer mixing in the Galilee and Eromanga Basins, Great Artesian Basin, Australia, J. Hydrol., 539, 304–318, 2016.
NSW Pinneena Groundwater Database: NSW Government DPI Water, available at: http://allwaterdata.water.nsw.gov.au/water.stm, last access: 19 May 2017.
Parkhurst, D. and Appelo, C.: User's guide to PHREEQC – a computer program for speciation, batch-reaction, one dimensional transport, and inverse geochemical calculations, USGS Water Resources Investigations Report, No. 994259, 1999.
Parkhurst, D. L. and Charlton, S. R.: NetpathXL – An Excel interface to the program NETPATH, USGS Techniques and Methods, 6-A26, 2008.
Phillips, F. M.: Chlorine-36, in: Environmental Tracers in Subsurface Hydrology, edited by: Cook, P. and Herczeg, A. L., 299–348, 2000.
Plummer, L. N. and Glynn, P. D.: Radiocarbon dating in groundwater systems, in: Isotope methods for dating old groundwater, Vienna, International Atomic Energy Agency, 33–89, STI/PUB/1587, 2013.
Powell, J. and Scott, F.: A representative irrigation farming system in the Lower Namoi Valley of NSW: an economic analysis, Economic Research Report No. 46, Industry and Investment NSW, 63 pp., 2011.
Puls, R. W. and Barcelona, M. J.: Low-flow (minimal drawdown) groundwater sampling procedures, EPA/540/S-95/504, 10 pp., 1996.
Radke, B., Ferguson, J., Cresswell, R. G., Ransley, T. R., and Habermehl, M. A.: Hydrochemistry ad implied hydrodynamics of the Cadna-owie-Hooray Aquifer Great Artesian Basin, Bureau of Rural Sciences, Canberra, 2000.
Raiber, M., Webb, J. A., Cendón, D. I., White, P. A., and Jacobsen, G. E.: Environmental isotopes meet 3D geological modelling: Conceptualising recharge and structurally-controlled aquifer connectivity in the basalt plains of south-western Victoria, Australia, J. Hydrol., 527, 262–280, 2015.
Rawling, G. C. and Newton, B. T.: Quantity and location of groundwater recharge in the Sacramento Mountains, south-central New Mexico (USA), and their relation to the adjacent Roswell Artesian Basin, Hydrogeol. J., 24, 757–786, 2016.
Reilly, T. E. and Harbaugh, A. W.: Guidelines for Evaluating Ground-Water Flow Models, USGS Scientific Investigations Report 2004-5038, available at: https://pubs.usgs.gov/sir/2004/5038/PDF.htm (last access: 10 October 2017), 2004.
Robertson, W. D. and Cherry, J. A.: Tritium as an indicator of recharge and dispersion in a groundwater system in Central Ontario, Water Resour. Res., 25, 1097–1109, 1989.
Salameh, E. and Tarawneh, A.: Assessing the imapcts of uncontrolled artesian flows on the management of groundwater resources in the Jordan Valley, Environ. Earth Sci., 76, 291, https://doi.org/10/1007/s12665-017-6610-0, 2017.
Scanlon, B. R., Healy, R. W., and Cook, P. G.: Choosing appropriate techniques for quantifying groundwater recharge, Hydrogeol. J., 10, 18–39, 2002.
Schilling, K. E., Jacobsen, P. J., Libra, R. D., Gannon, J. M., Langel, R. J., and Peate, D. W.: Estimating groundwater age in the Cambrian-Ordovician aquifer in Iowa: implications for biofuel production and other water uses, Environ. Earth Sci., 76, https://doi.org/10/1007/s12665-016-6321-y, 2017.
Sharma, P., Kuhik, P. W., Fehn, U., Gove, H. E., Nishiizumi, K., and Elmore, D.: Development of 36Cl standard for AMS, Nucl. Instr. Meth. B., 52, 410–415, 1990.
Short, M. A., de Caritat, P., and McPhail, D. C.: Continental-scale variation in chloride/bromide ratios of wet deposition, Sci. Tot. Environ., 574, 1533–1543, 2017.
Stone, J. O., Allan, G. L., Fifield, L. K., and Cresswell, R. G.: Cosmogenic chlorine-36 from calcium spallation, Geochim. Cosmochim. Ac., 60, 679–692, 1996.
Smithson, A.: Lower Namoi Groundwater Source: Groundwater Management Area 001, Groundwater Status Report 2008, NSW Department of Water and Energy, Sydney, 2009.
Tadros, N. Z.: The Gunnedah Basin, New South Wales, Vol. 12, Department of Mineral Resources, Coal and Petroleum Geology Branch, Sydney, 1993.
Tadros, C. V., Hughes, C. E., Crawford, J., Hollins, S. E., and Chisari, R.: Tritium in Australian precipitation: A 50 year record, J. Hydrol., 513, 262–273, 2014.
Tosaki, Y., Tase, N., Massmann, G., Nagashima, Y., Seki, R., Takahashi, T., Sasa, K., Sueki, K., Matsuhiro, T., Miura, T., and Bessho, K.: Application of 36Cl as a dating tool for modern groundwater, Nucl. Instrum. Meth. B, 259, 479–485, 2007.
Wilcken, K. M., Fink, D., Hotchkis, M. A. C., Garton, D., Button, D., Mann, M., Kitchen, R., Hauser, T., and O'Connor, A.: Accelerator Mass Spectrometry on SIRIUS: New 6 MV spectrometer at ANSTO, Nucl. Instrum. Meth. B, 406, 278–282, https://doi.org/10.1016/j.nimb.2017.01.003, 2017.
Williams, R. M., Merrick, N. P., and Ross, J. B.: Natural and induced recharge in the Lower Namoi Valley, New South Wales, in: Groundwater Recharge, edited by: Sharma, M. L., Proceedings of the Symposium on Groundwater Recharge, 239–253, 1989.
Zhang, L., Walker, G. R., and Dawes, W. R.: Water balance modelling: concepts and applications, in: Regional Water and Soil Assessment for Managing Sustainable Agriculture in China and Australia, edited by: McVicar, T. R., Rui, L., Walker, J., Fitzpatrick, R. W., and Changming, L., ACIAR Monograph No. 84, 31–47, 2002.
Short summary
This study uses a multi-tracer geochemical approach to determine the extent of artesian groundwater discharge into an economically important alluvial aquifer. We compare estimates for artesian discharge into the alluvial aquifer derived from water balance modelling and geochemical data to show that there is considerable divergence in the results. The implications of this work involve highlighting that geochemical data should be used as a critical component of water budget assessments.
This study uses a multi-tracer geochemical approach to determine the extent of artesian...
