Articles | Volume 19, issue 11
Research article 04 Nov 2015
Research article | 04 Nov 2015
Determining the stable isotope composition of pore water from saturated and unsaturated zone core: improvements to the direct vapour equilibration laser spectrometry method
M. J. Hendry et al.
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Magali F. Nehemy, Paolo Benettin, Mitra Asadollahi, Dyan Pratt, Andrea Rinaldo, and Jeffrey J. McDonnell
Hydrol. Earth Syst. Sci. Discuss.,
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Subject: Groundwater hydrology | Techniques and Approaches: Instruments and observation techniquesUsing multiple methods to investigate the effects of land-use changes on groundwater recharge in a semi-arid areaIdentifying recharge under subtle ephemeral features in a flat-lying semi-arid region using a combined geophysical approachIsotopic and chromatographic fingerprinting of the sources of dissolved organic carbon in a shallow coastal aquiferTime-lapse cross-hole electrical resistivity tomography (CHERT) for monitoring seawater intrusion dynamics in a Mediterranean aquiferUnderstanding the relative importance of vertical and horizontal flow in ice-wedge polygonsGroundwater–glacier meltwater interaction in proglacial aquifersA review of methods for measuring groundwater–surface water exchange in braided riversError in hydraulic head and gradient time-series measurements: a quantitative appraisalThe effect of sediment thermal conductivity on vertical groundwater flux estimatesHydrogeological conceptual model of andesitic watersheds revealed by high-resolution heliborne geophysicsMicrobial community changes induced by Managed Aquifer Recharge activities: linking hydrogeological and biological processesApplication of the pore water stable isotope method and hydrogeological approaches to characterise a wetland systemComment on “Origin of water in the Badain Jaran Desert, China: new insight from isotopes” by Wu et al. (2017)Delineating multiple salinization processes in a coastal plain aquifer, northern China: hydrochemical and isotopic evidenceHydraulic characterisation of iron-oxide-coated sand and gravel based on nuclear magnetic resonance relaxation mode analysesUsing hydraulic head, chloride and electrical conductivity data to distinguish between mountain-front and mountain-block recharge to basin aquifersAquifer configuration and geostructural links control the groundwater quality in thin-bedded carbonate–siliciclastic alternations of the Hainich CZE, central GermanyA multi-tracer approach to constraining artesian groundwater discharge into an alluvial aquiferTransfer of environmental signals from the surface to the underground at Ascunsă Cave, RomaniaHalon-1301 – further evidence of its performance as an age tracer in New Zealand groundwaterElectrical resistivity dynamics beneath a fractured sedimentary bedrock riverbed in response to temperature and groundwater–surface water exchangeDetecting seasonal and long-term vertical displacement in the North China Plain using GRACE and GPSFlow dynamics in hyper-saline aquifers: hydro-geophysical monitoring and modelingInfluence of groundwater on distribution of dwarf wedgemussels (Alasmidonta heterodon) in the upper reaches of the Delaware River, northeastern USAQuantifying the influence of surface water–groundwater interaction on nutrient flux in a lowland karst catchmentIdentification of anthropogenic and natural inputs of sulfate into a karstic coastal groundwater system in northeast China: evidence from major ions, δ13CDIC and δ34SSO4Accelerated gravity testing of aquitard core permeability and implications at formation and regional scaleAssessment of Halon-1301 as a groundwater age tracerIdentifying flood recharge and inter-aquifer connectivity using multiple isotopes in subtropical AustraliaTechnical Note: Field experiences using UV/VIS sensors for high-resolution monitoring of nitrate in groundwaterTimescales of regional circulation of saline fluids in continental crystalline rock aquifers (Armorican Massif, western France)A groundwater recharge perspective on locating tree plantations within low-rainfall catchments to limit water resource lossesIdentifying the origin and geochemical evolution of groundwater using hydrochemistry and stable isotopes in the Subei Lake basin, Ordos energy base, Northwestern ChinaGroundwater dynamics under water-saving irrigation and implications for sustainable water management in an oasis: Tarim River basin of western ChinaUsing hydrologic measurements to investigate free-phase gas ebullition in a Maine peatland, USASpatially resolved information on karst conduit flow from in-cave dye tracingThe usefulness of outcrop-analogue air-permeameter measurements for analysing aquifer heterogeneity: testing outcrop hydrogeological parameters with independent borehole dataInvestigating the spatio-temporal variability in groundwater and surface water interactions: a multi-technique approachTracing groundwater salinization processes in coastal aquifers: a hydrogeochemical and isotopic approach in the Na-Cl brackish waters of northwestern Sardinia, ItalyGaining and losing stream reaches have opposite hydraulic conductivity distribution patternsGroundwater–surface water interactions, vegetation dependencies and implications for water resources management in the semi-arid Hailiutu River catchment, China – a synthesisTeaching groundwater flow processes: connecting lecture to practical and field classesAssessing student understanding of physical hydrologyQuantifying aquifer properties and freshwater resource in coastal barriers: a hydrogeophysical approach applied at Sasihithlu (Karnataka state, India)Characterizing interactions between surface water and groundwater in the Jialu River basin using major ion chemistry and stable isotopesOrigin and assessment of deep groundwater inflow in the Ca' Lita landslide using hydrochemistry and in situ monitoringCompiling geophysical and geological information into a 3-D model of the glacially-affected island of FöhrHydraulic properties at the North Sea island of Borkum derived from joint inversion of magnetic resonance and electrical resistivity soundingsBench scale laboratory tests to analyze non-linear flow in fractured mediaInvestigating patterns and controls of groundwater up-welling in a lowland river by combining Fibre-optic Distributed Temperature Sensing with observations of vertical hydraulic gradients
Shovon Barua, Ian Cartwright, P. Evan Dresel, and Edoardo Daly
Hydrol. Earth Syst. Sci., 25, 89–104,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,
Charlotte P. Iverach, Dioni I. Cendón, Karina T. Meredith, Klaus M. Wilcken, Stuart I. Hankin, Martin S. Andersen, and Bryce F. J. Kelly
Hydrol. Earth Syst. Sci., 21, 5953–5969,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.
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,
Monique Beyer, Uwe Morgenstern, Rob van der Raaij, and Heather Martindale
Hydrol. Earth Syst. Sci., 21, 4213–4231,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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. Beyer, R. van der Raaij, U. Morgenstern, and B. Jackson
Hydrol. Earth Syst. Sci., 19, 2775–2789,Short summary
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,
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,
C. E. Bon, A. S. Reeve, L. Slater, and X. Comas
Hydrol. Earth Syst. Sci., 18, 953–965,
U. Lauber, W. Ufrecht, and N. Goldscheider
Hydrol. Earth Syst. Sci., 18, 435–445,
B. Rogiers, K. Beerten, T. Smeekens, D. Mallants, M. Gedeon, M. Huysmans, O. Batelaan, and A. Dassargues
Hydrol. Earth Syst. Sci., 17, 5155–5166,
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,
G. Mongelli, S. Monni, G. Oggiano, M. Paternoster, and R. Sinisi
Hydrol. Earth Syst. Sci., 17, 2917–2928,
X. Chen, W. Dong, G. Ou, Z. Wang, and C. Liu
Hydrol. Earth Syst. Sci., 17, 2569–2579,
Y. Zhou, J. Wenninger, Z. Yang, L. Yin, J. Huang, L. Hou, X. Wang, D. Zhang, and S. Uhlenbrook
Hydrol. Earth Syst. Sci., 17, 2435–2447,
V. Hakoun, N. Mazzilli, S. Pistre, and H. Jourde
Hydrol. Earth Syst. Sci., 17, 1975–1984,
J. A. Marshall, A. J. Castillo, and M. B. Cardenas
Hydrol. Earth Syst. Sci., 17, 829–836,
J.-M. Vouillamoz, J. Hoareau, M. Grammare, D. Caron, L. Nandagiri, and A. Legchenko
Hydrol. Earth Syst. Sci., 16, 4387–4400,
L. Yang, X. Song, Y. Zhang, D. Han, B. Zhang, and D. Long
Hydrol. Earth Syst. Sci., 16, 4265–4277,
F. Cervi, F. Ronchetti, G. Martinelli, T. A. Bogaard, and A. Corsini
Hydrol. Earth Syst. Sci., 16, 4205–4221,
T. Burschil, W. Scheer, R. Kirsch, and H. Wiederhold
Hydrol. Earth Syst. Sci., 16, 3485–3498,
T. Günther and M. Müller-Petke
Hydrol. Earth Syst. Sci., 16, 3279–3291,
C. Cherubini, C. I. Giasi, and N. Pastore
Hydrol. Earth Syst. Sci., 16, 2511–2522,
S. Krause, T. Blume, and N. J. Cassidy
Hydrol. Earth Syst. Sci., 16, 1775–1792,
Allison, G. B. and Hughes, M. W.: The use of natural tracers as indicators of soil-water movement in a temperate semi-arid region, J. Hydrol., 60, 157–173, https://doi.org/10.1016/0022-1694(83)90019-7, 1983.
Altinier, M. V., Savoye, S., Michelot, J.-L., Beaucaire, C., Massault, M., Tessier, D., and Waber, H. N.: The isotopic composition of porewater from Tournemire argillite (France): An inter-comparison study, Phys. Chem. Earth Pt A/B/C, 32, 209–218, https://doi.org/10.1016/j.pce.2006.02.047, 2007.
Araguas-Araguas, L., Rozanski, K., Gonfiantini, R., and Louvat, D.: Isotope effects accompanying vacuum extraction of soil water for stable isotope analyses, J. Hydrol., 168, 159–171, https://doi.org/10.1016/0022-1694(94)02636-P, 1995.
Bensenouci, F., Michelot, J. L., Matray, J. M., Savoye, S., Tremosa, J., and Gaboreau, S.: Profiles of chloride and stable isotopes in pore-water obtained from a 2000-m deep borehole through the Mesozoic sedimentary series in the eastern Paris Basin, Phys. Chem. Earth, Pt A/B/C, 65, 1–10, https://doi.org/10.1016/j.pce.2011.10.024, 2013.
Bourke, S. A., Turchenek, J., Schmeling, E., Mahmood, F. N., Olson, B. M., and Hendry, M. J.: Comparison of continuous core profiles and monitoring wells for assessing groundwater contamination by agricultural nitrate, Ground Water Monit. R., 35, 110–117, https://doi.org/10.1111/gwmr.12104, 2015.
Brand, W. A., Geilmann, H., Crosson, E. R., and Rella, C. W.: Cavity ring-down spectroscopy versus high temperature conversion isotope ratio mass spectrometry; a case study on δ2H and δ18O of pure water samples and alcohol/water mixtures, Rapid Commun. Mass Sp., 23, 1879-1884, https://doi.org/10.1002/rcm.4083, 2009.
Clark, I. D. and Fritz, P.: Environmental Isotopes in Hydrogeology, CRC Press/Lewis Publishers, Boca Raton, Florida, USA, 329 pp., 1997.
Filippini, M., Stumpp, C., Niejenhuis, I., Richnow, H. H., and Gargini, A.: Evaluation of aquifer recharge and vulnerability in an alluvial lowland using environmental tracers. J. Hydrol. https://doi.org/10.1016/j.jhydrol.2015.07.055, accepted, 2015.
Freeze, R. A. and Cherry, J. A.: Groundwater, Prentice Hall, Englewood Cliffs, New Jersey, USA, 604 pp., 1979.
Garvelmann, J., Kulls, C., and Weiler, M.: A porewater-based stable isotope approach for the investigation of subsurface hydrological processes, Hydrol. Earth Syst. Sci., 16, 631–640, https://doi.org/10.5194/hess-16-631-2012, 2012.
Gat, J. R.: Oxygen and hydrogen isotopes in the hydrologic cycle. Annu. Rev. Earth Pl. Sc., 24, 225–262, https://doi.org/10.1146/annurev.earth.24.1.225, 1996.
Gimmi, T., Waber, H. N., Gautschi, A., and Rubel, A.: Stable water isotopes in pore water of Jurassic argillaceous rocks as tracers for solute transport over large spatial and temporal scales. Water Resour. Res., 43, https://doi.org/10.1029/2005WR004774, 2007.
Harrington, G. A., Gardner, W. P., Smerdon, B. D., and Hendry, M. J.: Palaeohydrological insights from natural tracer profiles in aquitard porewater, Great Artesian Basin, Australia, Water Resour. Res., 49, 4054–4070, https://doi.org/10.1002/wrcr.20327, 2013.
Hendry, M. J. and Wassenaar, L. I.: Inferring heterogeneity in aquitards using high-resolution δD and δ18O profiles, Ground Water, 47, 639–645, https://doi.org/10.1111/j.1745-6584.2009.00564.x, 2009.
Hendry, M. J., Kelln, C. J., Wassenaar, L. I., and Shaw, J.: Characterizing the hydrogeology of a complex clay-rich aquitard system using detailed vertical profiles of stable isotopes of water, J. Hydrol., 293, 47–56, https://doi.org/10.1016/j.jhydrol.2004.01.010, 2004.
Hendry, M. J., Barbour, S. L., Zettl, J., Chostner, V., and Wassenaar, L. I.: Controls on the long-term downward transport of δ2H of water in a regionally extensive, two-layered aquitard system, Water Resour. Res., 4, https://doi.org/10.1029/2010WR010044, 2011a.
Hendry, M. J., Richman, B., and Wassenaar, L. I.: Correcting for methane interferences on δ2H and δ18O measurements in pore water using H2O$_(liquid)$-H2O$_(vapor)$ equilibration laser spectroscopy, Anal. Chem., 83, 5789–5796, https://doi.org/10.1021/ac201341p, 2011b.
Hendry, M. J., Barbour, S. L., Novakowski, K., and Wassenaar, L. I.: Palaeohydrogeology of the Cretaceous Sediments of the Williston Basin using Stable Isotopes of Water, Water Resour. Res., 49, 4580–4592, https://doi.org/10.1002/wrcr.20321, 2013.
Hendry, M. J., Barbour, S. L., and Schmeling, E.: Defining near-surface groundwater flow regimes in the semi-arid glaciated plains of North America, submitted to Isot. Environ. Healt. S., 2015.
Herbstritt, B., Limprecht, M., Gralher, B., and Weiler, M.: Effects of soil properties on the apparent water-vapor isotope equilibrium fractionation: Implications for the headspace equilibration method [poster presentation]. UNI Freiburg: http://www.hydro.uni-freiburg.de/publ/pubpics/post229 (last access: 7 October 2015), 2014.
Ingraham, N. L. and Shadel, C.: A comparison of the toluene distillation and vacuum/heat methods for extracting soil water for stable isotopic analysis, J. Hydrol., 140, 371–387, https://doi.org/10.1016/0022-1694(92)90249-U, 1992.
Kelln, C. J., Wassenaar, L. I., and Hendry, M. J.: Stable isotopes (δ18O, δ2H) of pore waters in clay-rich aquitards: A comparison and evaluation of measurement techniques, Ground Water Monit. R., 21, 108–116, https://doi.org/10.1111/j.1745-6592.2001.tb00306.x, 2001.
Kelln C. J., Barbour, S. L., and Qualizza, C.: Preferential flow in a reclamation cover: Hydrological and geochemical response, J. Geotech. Geoenviron. Eng., 133, 1277–1289, https://doi.org/10.1061/(ASCE)1090-0241(2007)133:10(1277), 2007.
Klaus, J., Zehe, E., Elsner, M., Kulls, C., and McDonnell, J. J.: Macropore flow of old water revisited: experimental insights from a tile-drained hillslope, Hydrol. Earth Syst. Sci., 17, 103–118, https://doi.org/10.5194/hess-17-103-2013, 2013.
Koehler, G. and Wassenaar, L. I.: Determination of the hydrogen isotopic compositions of organic materials and hydrous minerals using thermal combustion laser spectroscopy, Anal. Chem., 84, 3640–3645. https://doi.org/10.1021/ac3000489, 2012.
Koehler, G., Wassenaar, L. I., and Hendry, M. J.: An automated technique for measuring δD and δ18O values of porewater by direct CO2 and H2 equilibration, Anal. Chem., 72, 5659–5664, https://doi.org/10.1021/ac000498n, 2000.
Koehler, G., Wassenaar, L. I., and Hendry, M. J.: Measurement of stable isotope activities in saline aqueous solutions using optical spectroscopy methods, Isot. Environ. Healt. S., 49, 378–386, https://doi.org/10.1080/10256016.2013.815183, 2013.
Koeniger, P., Marshall, J. D., Link, T., and Mulch, A.: An inexpensive, fast and reliable method for vacuum extraction of soil and plant water for stable isotope analyses by mass spectrometry, Rapid Commun. Mass Sp., 25, 3041–3048, 2011.
Lis, G., Wassenaar, L. I., and Hendry, M. J.: High-precision laser spectroscopy D/H and 18O/16O measurements of microliter natural water samples, Anal. Chem., 80, 287–293, https://doi.org/10.1021/ac701716q, 2008.
Majoube, M.: Fractionnement en oxygene-18 et en deuterium entre l'eau et sa vapeur, J. Chim. Phys., 68, 1423–1436, 1971.
Morrison, J., Brockwell, T., Merren, T., Fourel, F., and Phillips, A. M.: On-line high-precision stable hydrogen isotopic analyses on nanoliter water samples, Anal. Chem., 73, 3570–3575, https://doi.org/10.1021/ac001447t, 2001.
Mueller, M. H., Alaoui, A., Kuells, C., Leistert, H., Meusburger, K., Stumpp, C., Weiler, M., and Alewell, C.: Tracking water pathways in steep hillslopes by δ18O depth profiles of soil water, J. Hydrol., 519, 340–352, https://doi.org/10.1016/j.jhydrol.2014.07.031, 2014.
Munksgaard, N. C., Cheesman, A. W., Wurster, C. M., Cernusak, L. A., and Bird, M, I.: Microwave extraction-isotope ratio infrared spectroscopy (ME-IRIS): a novel technique for rapid extraction and in-line analysis of δ18O and δ2H values of water in plants, soils and insects, Rapid Comm. Mass Sp., 28, 2151–2161, 2014.
Orolowski, N., Frede, H. G., Brüggemann, N., and Breuer, L.: Validation and application of a cryogenic vacuum extraction system for soil and plant water extraction for isotope analysis, J. Sens. Sens. Syst. 2, 179–193, https://doi.org/10.5194/jsss-2-179-2013, 2013.
Peng, H., Mayer, B., Harris, S., and Krouse, R.: A 10-yr record of stable isotope ratios of hydrogen and oxygen in precipitation at Calgary, Alberta, Canada, Tellus, 56B, 147–159, 2004.
Pratt, D. L., Hendry, M. J., Barbour, L., and Schmeling, E.: Optimization and configuration of a hydrocarbon gas removal system for the determination of δ2H and δ18O on Picarro CRDS. GSA Annual Meeting, Vancouver, British Columbia, 19–22 October 2014, Session 161-2, 2014.
Revesz, K. and Woods, P. H.: A method to extract soil water for stable isotope analysis. J. Hydrol., 115, 397–406, https://doi.org/10.1016/0022-1694(90)90217-L, 1990.
Rubel, A. P., Sonntag, C., Lippmann, J., Pearson, F. J., and Gautschi, A.: Solute transport in formations of very low permeability: profiles of stable isotope and dissolved noble gas contents of pore water in the Opalinus Clay, Mont Terri, Switzerland, Geochim. Cosmochim. Ac., 66, 1311–1321, https://doi.org/10.1016/S0016-7037(01)00859-6, 2002.
Savoye, S., Michelot, J., Wittebroodt, C., and Altinier, V. M.: Contribution of the diffusive exchange method to the characterization of pore-water in consolidated argillaceous rocks, J. Contam. Hydrol., 86, 87–104, https://doi.org/10.1016/j.jconhyd.2006.02.010, 2006.
Schmeling, E.: Characterization of the hydrogeology and solute transport in a geologically complex, fractured, late-cretaceous shale, Fort a la Corne Kimberlite field, Saskatchewan, Canada. M.S. thesis, University of Saskatchewan, Saskatoon, Canada, 2014.
Schmidt, M., Maseyk, K., Lett, C., Biron, P., Richard, P., Bariac, T., and Seibt, U.: Reducing and correcting for contamination of ecosystem water stable isotopes measured by isotope ratio infrared spectroscopy, Rapid Commun. Mass Spectrom., 26, 141–153, 2012.
Sperazza, M., Moore, J. N., and Hendrix, M. S.: High-resolution particle size analysis of naturally occurring very fine-grained sediment through laser diffractometry, J. Sediment. Res., 74, 736–743, https://doi.org/10.1306/031104740736, 2004.
Sprenger, M., Volkmann, T. H. M., Blume, T., and Weiler, M.: Estimating flow and transport parameters in the unsaturated zone with pore water stable isotopes, Hydrol. Earth Syst. Sci., 19, 2617–2635, https://doi.org/10.5194/hess-19-2617-2015, 2015.
Stumpp, C. and Hendry, M. J.: Spatial and temporal dynamics of water flow and solute transport in a heterogeneous glacial till: The application of high-resolution profiles of δ18O and δ2H in pore waters, J. Hydrol., 438–439, 203–214, https://doi.org/10.1016/j.jhydrol.2012.03.024, 2012.
Szmigielski, J. T., Hendry, M. J., and Barbour, L.: Hydrogeological characterization of a groundwater system down gradient of a coal waste rock spoil, GSA Annual Meeting, Vancouver, British Columbia, 19–22 October 2014, Session 296-8, 2014.
Turchenek, J.: Defining the distribution, source, fate and transport of nitrate in groundwater beneath an agriculturally intensive region using high-resolution profiling methods, M. S. thesis, University of Saskatchewan, Saskatoon, Saskatchewan, 2014.
van der Kamp, G., Van Stempvoort, D. R., and Wassenaar, L. I.: The radial diffusion method 1. Using intact cores to determine isotopic composition, chemistry, and effective porosities for groundwater in aquitards, Water Resour. Res., 32, 1815–1822, https://doi.org/10.1029/95WR03719, 1996.
Wassenaar, L. I., Hendry, M. J., Chostner, V. L., and Lis, G. P.: High resolution pore water δ2H and δ18O measurements by H2O(liquid)–H2O(vapor) equilibration laser spectroscopy, Environ. Sci. Technol., 42, 9262–9267, https://doi.org/10.1021/es802065s, 2008.
West, A. G., Patrickson, S. J., and Ehleringer, J. R.: Water extraction times for plant and soil materials used in stable isotope analysis, Rapid Commun. Mass Sp., 20, 1317–1321, 2006.
West, A. G., Goldsmith, G. R., Brooks, P. D., and Dawson, T. E.: Discrepancies between isotope ratio infrared spectroscopy and isotope ratio mass spectrometry for the stable isotope analysis of plant and soil water, Rapid Commun. Mass Sp., 24, 1948–1954, https://doi.org/10.1002/rcm.4597, 2010.
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.
Improvements and limitations to the measurement δ2H and δ18O of pore waters in geologic core...