Hydrogeology Journal最新文献_第9页

Utilización de trazadores hidroquímicos e isotópicos para investigar la calidad de las aguas subterráneas y los procesos de recarga del Sistema Acuífero Iullemeden en la región del Sahel (África Occidental) 利用水化学和同位素示踪剂调查西非萨赫勒地区Iullemeden含水层系统的地下水质量和补给过程

3区地球科学

Hydrogeology Journal Pub Date : 2023-11-10 DOI: 10.1007/s10040-023-02744-0

K. Zouari, R. Trabelsi, Luis L. Araguás Araguás, S. Hussaini, S. Rabe, A. Alassane

引用次数: 0

Using the tidal method to develop a conceptual model and for hydraulic characterization at the Argentona research site, NE Spain 在西班牙东北部的Argentona研究地点，使用潮汐法开发概念模型并进行水力表征

3区地球科学

Hydrogeology Journal Pub Date : 2023-11-08 DOI: 10.1007/s10040-023-02730-6

Tybaud Goyetche, Maria Pool, Jesus Carrera, Marc Diego-Feliu, Laura Martinez Perez, Albert Folch, Linda Luquot

引用次数: 0

通过多种实验方法利用人工降雨进行优先流的探测与定量化通过多种实验方法利用人工降雨进行优先流的探测与定量化

3区地球科学

Hydrogeology Journal Pub Date : 2023-11-08 DOI: 10.1007/s10040-023-02733-3

Maria C. Caputo, Lorenzo De Carlo, Rita Masciale, Kim Perkins, Antonietta C. Turturro, John R. Nimmo

{"title":"通过多种实验方法利用人工降雨进行优先流的探测与定量化","authors":"Maria C. Caputo, Lorenzo De Carlo, Rita Masciale, Kim Perkins, Antonietta C. Turturro, John R. Nimmo","doi":"10.1007/s10040-023-02733-3","DOIUrl":"https://doi.org/10.1007/s10040-023-02733-3","url":null,"abstract":"Abstract Preferential flow in the unsaturated zone strongly influences important hydrologic processes, such as infiltration, contaminant transport, and aquifer recharge. Because it entails various combinations of physical processes arising from the interactions of water, air, and solid particles in a porous medium, preferential flow is highly complex. Major research is needed to improve the ability to understand, quantify, model, and predict preferential flow. Toward a solution, a combination of diverse experimental measurements at multiple scales, from laboratory scale to mesoscale, has been implemented to detect and quantify preferential paths in carbonate and karstic unsaturated zones. This involves integration of information from (1) core samples, by means of mercury intrusion porosimeter, evaporation, quasi-steady centrifuge and dewpoint potentiometer laboratory methods, to investigate the effect of pore-size distribution on hydraulic characteristics and the potential activation of preferential flow, (2) field plot experiments with artificial sprinkling, to visualize preferential pathways related to secondary porosity, through use of geophysical measurements, and (3) mesoscale evaluation of field data through episodic master recession modeling of episodic recharge. This study demonstrates that preferential flow processes operate from core scale to two different field scales and impact on the qualitative and quantitative groundwater status, by entailing fast flow with subsequent effects on recharge rate and contaminant mobilizing. The presented results represent a rare example of preferential flow detection and numerical modeling by reducing underestimation of the recharge and contamination risks.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"86 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135390085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of different pilot point parameterization strategies when measurements are unevenly distributed in space 测量数据空间分布不均匀时不同导点参数化策略的比较

3区地球科学

Hydrogeology Journal Pub Date : 2023-11-02 DOI: 10.1007/s10040-023-02737-z

Ryma Aissat, Alexandre Pryet, Marc Saltel, Alain Dupuy

{"title":"Comparison of different pilot point parameterization strategies when measurements are unevenly distributed in space","authors":"Ryma Aissat, Alexandre Pryet, Marc Saltel, Alain Dupuy","doi":"10.1007/s10040-023-02737-z","DOIUrl":"https://doi.org/10.1007/s10040-023-02737-z","url":null,"abstract":"Abstract The parameterization of spatially distributed hydraulic properties is one of the most crucial steps in groundwater modeling. A common approach is to estimate hydraulic properties at a set of pilot points and interpolate the values at each model cell. Despite the popularity of this method, several questions remain about the optimum number and distribution of pilot points, which are determining factors for the efficiency of the method. This study proposes a strategy for optimal pilot point parameterization that minimizes the number of parameters while maximizing the assimilation of an observed dataset unevenly distributed in space. The performance of different pilot point distributions has been compared with a synthetic groundwater model, considering regular grids of pilot points with different spacings and adaptive grids with different refinement criteria. This work considered both prior and iterative refinements, with a parameter estimation step between successive refinements. The parameter estimation was conducted with the Gauss–Levenberg–Marquardt algorithm, and the strategies were ranked according to the number of model calls to reach the target objective function. The strategy leading to the best fit with the measurement dataset at the minimum computational burden is an adaptive grid of pilot points with prior refinement based on measurement density. This strategy was successfully implemented on a regional, multilayered groundwater flow model in the south-western geological basin of France.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"35 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135934293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Kan effektiv porøsitet bruges til at estimere boringsnære beskyttelseszoner i opsprækket kalk? 有效孔隙度能否用于估算断裂石灰岩中的近钻孔保护带？

3区地球科学

Hydrogeology Journal Pub Date : 2023-11-01 DOI: 10.1007/s10040-023-02743-1

Jacob Kidmose, Bertel Nilsson, Niels Korsholm Klem, Philip Grinder Pedersen, Hans Jørgen Henriksen, Torben O. Sonnenborg

{"title":"Kan effektiv porøsitet bruges til at estimere boringsnære beskyttelseszoner i opsprækket kalk?","authors":"Jacob Kidmose, Bertel Nilsson, Niels Korsholm Klem, Philip Grinder Pedersen, Hans Jørgen Henriksen, Torben O. Sonnenborg","doi":"10.1007/s10040-023-02743-1","DOIUrl":"https://doi.org/10.1007/s10040-023-02743-1","url":null,"abstract":"Abstract Protection of fractured carbonate aquifers is often based on a single-porosity description of a dual-porosity system. However, it is difficult to assess a trustworthy value of the effective porosity based on scientific principles; thus, a range of estimates is often suggested. The complexity of the problem is compounded by the fact that the effective porosity may be scale-dependent. This paper investigates whether it is possible to describe solute transport in fractured carbonate rocks with an equivalent porous medium model using a constant value of effective porosity. It is assumed that the dual-porosity model provides an acceptable description of transport mechanisms in fractured porous rock and that it is possible to estimate the parameters needed in the single-porosity models from results generated by the dual-porosity model. The effective porosity is estimated from the dual-porosity results that are used as targets. For Danish chalk, an effective porosity of 13% (11–17%) is estimated. However, it is demonstrated that the estimated effective porosity is only valid at the specific transport time (1 year) from which simulation results of the dual-porosity model were extracted. The effective porosity is shown to increase with travel time until equilibrium conditions are realised between the fractures and matrix, following which, the effective porosity equals the matrix porosity and will maintain this value at larger transport times. Assuming that the dual-porosity model provides a trustworthy description of solute transport in fractured chalk and limestone, a method to estimate the effective porosity of an equivalent porous medium model is presented.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"282 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135273474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Curvas de flujo con múltiples picos en ríos kársticos: efectos de un sistema de difluencia-confluencia 喀斯特河流多峰流动曲线:差异-汇流系统的影响

3区地球科学

Hydrogeology Journal Pub Date : 2023-10-31 DOI: 10.1007/s10040-023-02728-0

Romain Deleu, Amaël Poulain, Gaëtan Rochez, Sandra Soares-Frazao, Guy Van Rentergem, Eli De Poorter, Vincent Hallet

{"title":"Curvas de flujo con múltiples picos en ríos kársticos: efectos de un sistema de difluencia-confluencia","authors":"Romain Deleu, Amaël Poulain, Gaëtan Rochez, Sandra Soares-Frazao, Guy Van Rentergem, Eli De Poorter, Vincent Hallet","doi":"10.1007/s10040-023-02728-0","DOIUrl":"https://doi.org/10.1007/s10040-023-02728-0","url":null,"abstract":"Abstract In karstic environments, it is not unusual for an underground river to split into two or more streams (diffluence) and merge back together downstream (confluence). This kind of behavior can generate multipeaked breakthrough curves (BTCs) in dye tracing at a sampling site located downstream of the confluence(s). It is also possible that such a phenomenon is difficult to highlight with dye tracing if the tracer clouds coming from the different streams reach the sampling locations at the same time. In this study, an attempt at quantifying the importance of different criteria in the occurrence of a multipeaked BTC is done by performing a dye tracing campaign in a two-tributaries diffluence-confluence (DC) system and using a one-dimensional solute transport model. The results from both field data and the solute transport model suggest that a double-peaked BTC occurs downstream of a DC system if the following conditions are met: (1) the injection is done close enough to the diffluence, (2) the sampling point is located not too far from the confluence, and (3) the two (or more) streams have sufficiently contrasted travel times from the diffluence to the confluence. The paper illustrates that, even if a diffluence occurs in a karstic river, multipeaked BTCs are not necessarily observed downstream of the confluence if these three conditions are not met. Therefore, characterizing a DC system using dye tracing is a real challenge. This could explain why publications that report studies involving multipeaked BTCs are quite rare.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"2023 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135872520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Un enfoque de regresión armónica dinámica para estimar la evapotranspiración de aguas subterráneas basado en las fluctuaciones diarias del nivel freático 一种基于地下水位每日波动估计地下水蒸散量的动态调和回归方法

3区地球科学

Hydrogeology Journal Pub Date : 2023-10-31 DOI: 10.1007/s10040-023-02723-5

Rebecca Doble, Glen Walker, Russell Crosbie, Joseph Guillaume, Tanya Doody

{"title":"Un enfoque de regresión armónica dinámica para estimar la evapotranspiración de aguas subterráneas basado en las fluctuaciones diarias del nivel freático","authors":"Rebecca Doble, Glen Walker, Russell Crosbie, Joseph Guillaume, Tanya Doody","doi":"10.1007/s10040-023-02723-5","DOIUrl":"https://doi.org/10.1007/s10040-023-02723-5","url":null,"abstract":"Abstract The Murray-Darling Basin (MDB) is a highly allocated and regulated, mostly semiarid basin in south-eastern Australia, where groundwater is a significant water resource. Future climate predictions for the MDB include an expansion of arid and semiarid climate zones to replace temperate areas. The impacts of climate change are already evident in declining groundwater levels and changes in the connection status between rivers and groundwater, and modelling has predicted a further reduction in future groundwater recharge and ongoing declines in groundwater levels. This is predicted to further reduce river baseflow and negatively impact groundwater-dependent ecosystems (GDEs), and these system responses to a changing climate and extreme events are complex and not always well understood. This report provides an overview of the current state of knowledge of groundwater response to a changing climate for the MDB, and outlines challenges and opportunities for future groundwater research and management. Opportunities for the region include improving data systems and acquisition through automation and novel data sources, and growing capability in integrated, risk-based modelling. Quantification of the groundwater/surface-water connection response to declining groundwater levels, and assessing GDE water requirements and thresholds, would enable identification of vulnerable systems and inform the development of metrics for adaptive management, improving the ability to respond to climate extremes. There is potential to adapt policy to support active management of groundwater where required, including conjunctive use and water banking. Improving knowledge sharing and water literacy, including understanding community values of groundwater and GDEs, would support future decision-making.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"19 40","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135863559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Os poços na zona vadosa podem ser retrolavados para recuperar a capacidade de infiltração? Conceito e teste de laboratório 涉水带的井是否可以反冲洗以恢复渗入能力?概念及实验室测试

3区地球科学

Hydrogeology Journal Pub Date : 2023-10-25 DOI: 10.1007/s10040-023-02732-4

Fritz Kalwa

{"title":"Os poços na zona vadosa podem ser retrolavados para recuperar a capacidade de infiltração? Conceito e teste de laboratório","authors":"Fritz Kalwa","doi":"10.1007/s10040-023-02732-4","DOIUrl":"https://doi.org/10.1007/s10040-023-02732-4","url":null,"abstract":"Abstract Vadose zone wells (VZW), or drywells, allow for high infiltration rates combined with small area demand. Nevertheless, they are rarely used for managed aquifer recharge, since turbid water leads to gradual clogging and a reduction in infiltration capacity. Established redevelopment measures require backflushing, which is commonly considered impossible for VZWs, making them “non regenerable”. In this study, the possibility of backflushing a VZW is discussed. Key to the underlying approach is isolating the lower (clogged) section of a well and saturating its surrounding with water by infiltration via the upper (unclogged) screen. Subsequently, underpressure sucks water from the surrounding soil into the isolated section. The approach was tested with and without a gravel pack, on laboratory scale, showing a successful reversal of flow direction in both cases. The degree of redevelopment was quantified by measuring the drainage time of the well, which increased from initially 45 s without gravel pack and 40 s with gravel pack to 9,500 and 11,000 s, respectively, after clogging. After backflushing, the well with gravel pack showed a median drainage time of 95 s, which remained stable over ten cycles of clogging and backflushing. In contrast, drainage time of the well without gravel pack increased continuously to >170 s, even after vibrator application. In conclusion, it can be stated that the backflush of a VZW with the presented approach is possible and has an effect on the well’s infiltration capacity, though it seems more effective for wells with gravel pack.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"IA-23 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135113030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

History of the hydrogeochemical study of groundwater in the Netherlands and the research motives 荷兰地下水水文地球化学研究的历史及研究动机

3区地球科学

Hydrogeology Journal Pub Date : 2023-10-25 DOI: 10.1007/s10040-023-02736-0

Jasper Griffioen

{"title":"History of the hydrogeochemical study of groundwater in the Netherlands and the research motives","authors":"Jasper Griffioen","doi":"10.1007/s10040-023-02736-0","DOIUrl":"https://doi.org/10.1007/s10040-023-02736-0","url":null,"abstract":"Abstract An overview is presented of research on the hydrogeochemical aspects of groundwater resources in the Netherlands conducted since the early nineteenth century. The earliest studies investigated groundwater as a resource for drinking water. The first systematic, national study was in 1868 and was motivated by the cholera epidemics at that time. At the beginning of the twentieth century, research for drinking water production was institutionalised at national level. Since the 1960s, the range of organisations involved in hydrogeochemical research has broadened. Societal motives are also identified: shallow, biogenic methane as fossil fuel (already researched since the 1890s); groundwater contamination; freshening/salinisation of aquifers; ecohydrology and nature conservation; aquifer thermal energy storage; national and regional groundwater monitoring for policy evaluation; impact of climate change and weather variability; and occurrence of brackish groundwater and brines in the deeper subsurface. The last-mentioned has been driven by a series of motives ranging from water supply for recreational spas and mineral water production to subsurface disposal of radioactive waste. There have been two major scientific drivers: the introduction of techniques for using isotopes as tracers, and geochemical computer modelling. Another recent development has been the increasing capabilities in analytical chemistry in relation to the contamination of groundwater with emerging pollutants. Many of the motives for research emerged in the 1980s. Overall, the societal and associated technical motives turn out to be more important than the scientific motives for hydrogeochemical research on groundwater in the Netherlands. Once a research motive has emerged, it commonly tends to remain.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"36 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135113103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

达加斯加西南部复杂多层水系中的水体混合过程:联合同位素和压力测量方法达加斯加西南部复杂多层水系中的水体混合过程:联合同位素和压力测量方法

3区地球科学

Hydrogeology Journal Pub Date : 2023-10-25 DOI: 10.1007/s10040-023-02731-5

Simon D. Carrière, Pascale F. M. Rakotomandrindra, Thomas Heath, Konstantinos Chalikakis, Marina Gillon, Marc Leblanc, Sarah Tweed

{"title":"达加斯加西南部复杂多层水系中的水体混合过程:联合同位素和压力测量方法","authors":"Simon D. Carrière, Pascale F. M. Rakotomandrindra, Thomas Heath, Konstantinos Chalikakis, Marina Gillon, Marc Leblanc, Sarah Tweed","doi":"10.1007/s10040-023-02731-5","DOIUrl":"https://doi.org/10.1007/s10040-023-02731-5","url":null,"abstract":"Abstract Water transfers through a multilayered aquifer system are difficult to characterize. This study explores whether the conceptual model of water mixing at depth can be extrapolated over a hydrosystem extended across several tens of kilometers and including multiple aquifer layers. The processes are investigated using a combination of isotope tracers and piezometric monitoring over 10 years. The goal of this approach is to better understand how water transfer occurs throughout a complex and poorly documented hydrosystem of the Mahafaly Plateau in southwestern Madagascar. The results show a clear smoothing of isotopic variability with depth, associated with a smoothing of the recharge peaks. Isotopic values are strongly variable in the near surface (from -6.8 to -2.5‰ 18 O) and stabilize at a critical depth (near 20 m) at around -4.7‰ 18 O. These results indicate high vertical flows through the aquifer system, where there is neither obvious dominant recharge via preferential pathways nor lateral mixing. Such a strong smoothing effect on groundwater isotopic variability with depth has been rarely observed so clearly over a large spatial scale. These results provide information on a remote groundwater flow system at a scale pertinent to groundwater resource assessment. The results also indicate that the Neogene aquifers of the Mahafaly Plateau are poorly connected with other water resources (rivers, old sedimentary formations) except for the percolation of water towards the deep Eocene karst. This means that groundwater resources in the Ankazomanga Basin are limited and that it is essential to understand and quantify recharge for sustainable groundwater management.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"37 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135113199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0