Characteristics of <i>δ</i>18O and <i>δ</i>2H and their implication for the interaction between precipitation, groundwater and river water in the upper River Tuojiang, Southwest China

Zhou, Jing; Liu, Guodong; Meng, Yuchuan; Xia, Chengcheng; Chen, Ke

doi:10.2166/wpt.2020.112

Cited by 3 publications

(1 citation statement)

References 47 publications

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“…Isotope data of precipitation, streamflow and groundwater (as δ 2 H in ‰) was used as model input, calibration and validation of the J2000iso. δ 2 H was used as the sole tracer because it has a larger value range but strongly correlated with δ 18 O (Zhou et al, 2020). Precipitation isotopes were solely used as forcings, while streamflow isotopes formed part of the calibration and validation process.…”

Section: Isotope Sampling and Datamentioning

confidence: 99%

Advancing isotope‐enabled hydrological modelling for ungauged calibration of data‐scarce humid tropical catchments

Watson,

Kralisch,

Miller

et al. 2024

Hydrological Processes

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Realistic projections of the future climate and how this translates to water availability is crucial for sustainable water resource management. However, data availability constrains the capacity to simulate streamflow and corresponding hydrological processes. Developing more robust hydrological models and methods that can circumvent the need for large amounts of hydro‐climatic data is crucial to support water‐related decisions, particularly in developing countries. In this study, we use natural isotope tracers in addition to hydro‐climate data within a newly developed version of the spatially‐distributed J2000iso as an isotope‐enabled rainfall‐runoff model simulating both water and stable isotope (δ2H) fluxes. We pilot the model for the humid tropical San Carlos catchment (2500 km2) in northeastern Costa Rica, which has limited time series, but spatially distributed data. The added benefit of simulating stable isotopes was assessed by comparing different amounts of observation data using three model calibration strategies (i) three streamflow gauges, (ii) three gauges with stream isotopes and (iii) isotopes only. The J2000iso achieved a streamflow Kling–Gupta efficiency (KGE) of 0.55–0.70 across all the models and gauges, but differences in hydrological process simulations emerged when including stable water isotopes in the rainfall‐runoff calibration. Hydrological process simulation varied between the standard J2000 rainfall‐runoff model with a high simulated surface runoff proportion of 37% as opposed to the isotope version with 84%–89% simulated baseflow or interflow. The model solutions that used only isotope data for calibration exhibited differences in simulated interflow, baseflow and model performance but captured bulk water balances with a reasonable match between the simulated and observed hydrographs. We conclude that J2000iso has shown the potential to support water balance modelling for ungauged catchments using stable isotope, satellite and global reanalysis data sets.

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Section: Isotope Sampling and Datamentioning

confidence: 99%

Advancing isotope‐enabled hydrological modelling for ungauged calibration of data‐scarce humid tropical catchments

Watson,

Kralisch,

Miller

et al. 2024

Hydrological Processes

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Research Trends in Groundwater and Stable Isotopes

Carrión-Mero

Montalván-Burbano

Herrera-Franco

et al. 2022

Water

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Groundwater is essential in the management of water resources globally. The water quality of aquifers is affected by climate change and population growth, aspects that can be addressed with stable isotope analysis. This study aims to carry out an analysis of the scientific information related to groundwater and stable isotopes (GSI) using scientific databases (Scopus and Web of Science) to evaluate the intellectual structure of the subject and the emerging research lines. The methodology includes: (i) topic search selection, (ii) tools in databases processing, (iii) bibliometric analysis, and (iv) review by clustering technique. The results showed that the scientific production of GSI can be addressed through three evolution periods: I (1969–1990), II (1991–2005), and III (2006–2021). Periods I and II did not significantly contribute to publications because, in the past, most of the student’s thesis (M.Sc. and Ph.D) consisted of writing a report that summarizes their works. Therefore, the researcher was not obliged to publish their results in a professional journal. Finally, the third period showed exponential growth, representing 82.34% of the total publications in this theme because, in the last years, institutions require at least one scientific article depending on the country and university, in order to graduate with an M.Sc. and PhD. Finally, the contribution of this study is reflected in the recognition of new research lines and their applicability by the knowledge of recharge sources, environmental aspects, infiltration, knowledge of the aquifer-meteoric water system, and groundwater-superficial water interaction. These aspects offer the possibility of analyzing integrated water resources management at the watershed or river-aquifer systems level.

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The Hydrochemical Characteristics and Formation Mechanism of Highly Mineralized Coal Mine Water in Semi-Arid Regions in Northwest China

Yang,

Zhao,

Liang

et al. 2024

Water

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The over-exploitation of groundwater and the deterioration of its quality have heightened the importance of non-traditional water resources, such as mine water. The study of the water’s chemical characteristics and the formation mechanism of high-salinity mine water in semi-arid regions holds significant importance for zero discharge and the resource utilization of mine water in Northwest China. In this study, a total of 38 groundwater and mine water samples were collected to examine the hydrogeochemical characteristics of high-salinity mine water using Piper diagrams and Gibbs diagrams, as well as isotope analyses and ion ratio coefficients. Additionally, the corresponding mine water treatment recommendations were put forward. The results show that the TDS content of groundwater increases with hydrographic depth. The average TDS concentration of Quaternary, Luohe, and Anding groundwater is 336.87, 308.67, and 556.29 mg/L, respectively. However, the TDS concentration of Zhiluo groundwater and mine water is 2768.57 and 3826.40 mg/L, respectively, which belong to high-salinity water. The Quaternary, Luohe, and Anding groundwater hydrochemical type is predominantly HCO3-Ca type, and the Zhiluo groundwater and mine water hydrochemical type is predominantly the SO4-Na type. Furthermore, there is minimal difference observed in δD and δ18O values among these waters. It can be inferred that the Zhiluo Formation in groundwater serves as the primary source of mine water supply, primarily influenced by the processes of concentration caused by evaporation. The high salinity of mine water is closely related to the high salinity of Zhiluo groundwater. The high salinity of groundwater has evolved gradually under the control of the concentration caused by evaporation and rock-weathering processes. The dissolution of salt rock, gypsum, along with other minerals, serves as the material basis for high-salinity groundwater formation. In addition, the evolution of major ions is also affected by cation exchange. The TDS concentration of mine water ranges from 3435.4 mg/L to 4414.3 mg/L, and the combined treatment process of nanofiltration and reverse osmosis can be selected to remove the salt. After treatment, mine water can be used for productive, domestic, and ecological demands.

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Characteristics of δ18O and δ2H and their implication for the interaction between precipitation, groundwater and river water in the upper River Tuojiang, Southwest China

Cited by 3 publications

References 47 publications

Advancing isotope‐enabled hydrological modelling for ungauged calibration of data‐scarce humid tropical catchments

Advancing isotope‐enabled hydrological modelling for ungauged calibration of data‐scarce humid tropical catchments

Research Trends in Groundwater and Stable Isotopes

The Hydrochemical Characteristics and Formation Mechanism of Highly Mineralized Coal Mine Water in Semi-Arid Regions in Northwest China

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