Hydrogeology Journal最新文献_第7页

Interpretation of hydrogeochemistry of the Upper Freshwater Molasse (Obere Süßwassermolasse) in the Munich area (Bavaria, Germany) using multivariate analysis and three-dimensional geological modelling 利用多元分析和三维地质建模解读慕尼黑地区（德国巴伐利亚州）上层淡水摩拉斯（Obere Süßwassermolasse ）的水文地球化学特征

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-12-27 DOI: 10.1007/s10040-023-02761-z

Aleksandra Kiecak, Jan Huch, Alberto Albarrán-Ordás, Lilian Chavez-Kus, Kai Zosseder

{"title":"Interpretation of hydrogeochemistry of the Upper Freshwater Molasse (Obere Süßwassermolasse) in the Munich area (Bavaria, Germany) using multivariate analysis and three-dimensional geological modelling","authors":"Aleksandra Kiecak, Jan Huch, Alberto Albarrán-Ordás, Lilian Chavez-Kus, Kai Zosseder","doi":"10.1007/s10040-023-02761-z","DOIUrl":"https://doi.org/10.1007/s10040-023-02761-z","url":null,"abstract":"Intense use of groundwater in urban areas requires appropriate monitoring, which in turn necessitates proper data management with employment of increasingly sophisticated statistical methods and mapping tools. An example of such an urban area with intensive use of groundwater is the study area of GeoPot Project, namely Munich (Germany) and its surroundings. The aim of the presented study was to provide a description of the hydrogeochemical characteristics of the aquifers occurring in the Quaternary and Upper Freshwater Molasse (German: Obere Süßwassermolasse – OSM) sediments and to further improve the understanding of interactions between the aquifers. The focus was put on the identification of hydrochemical facies, the chemical signatures of different water types, an understanding of occurring processes, and spatial relationships between the aquifers. In order to deal with hydrogeochemical data generated for this study, as well as with data coming from existing external databanks (e.g. BIS-BY), a methodology of quality assurance was developed. The analytical methods focused on multivariate statistics. To enhance the interpretation of the obtained clusters, a recently developed three-dimensional geological model was used for better understanding and presentation. It was found that in the study area, deeper aquifer systems represent the most distinct hydrogeochemical signature of the Na–HCO3 water type. In the remaining clusters, a transition from deeper (alkaline) to shallow (alkaline-earth) groundwater can be observed. The results of the study can be utilized for improved, sustainable groundwater management.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"11 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139055407","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

Groundwater level monitoring using exploited domestic wells: outlier removal and imputation of missing values 利用已开采的家用水井监测地下水位：异常值去除和缺失值估算

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-12-23 DOI: 10.1007/s10040-023-02740-4

{"title":"Groundwater level monitoring using exploited domestic wells: outlier removal and imputation of missing values","authors":"","doi":"10.1007/s10040-023-02740-4","DOIUrl":"https://doi.org/10.1007/s10040-023-02740-4","url":null,"abstract":"<h3>Abstract</h3> Groundwater-level monitoring networks provide vital information for hydrogeological studies. Including exploited domestic wells in these monitoring networks can provide a low-cost means of obtaining a broader set of data; however, the use of these sites is limited because the frequent pumping of these wells generates outliers in the recorded time series. Here a slope criterion is applied to identify and remove outliers from groundwater-level time series from exploited domestic wells. Nonetheless, eliminating outliers creates a problem of missing values, which biases the subsequent time series analysis. Thus, 14 imputation methods were used to replace the missing values. The proposed approach is applied to groundwater-level time series from a monitoring network of 20 wells in the Lanaudière region, Québec, Canada. The slope criterion proves very effective in identifying outliers in exploited domestic wells. Missing values generated by outlier removal can reach up to 99% of the recorded data. Among the characteristics of the missing value pattern, the gap size and the position of the gaps along the time series are the most important parameters that affect the performance of the 14 imputation methods. Of the imputation methods tested, linear interpolation and Stineman interpolation, and then Kalman filtering, were the most effective. The present study demonstrates that exploited domestic wells can be used for groundwater monitoring by removing the outliers and imputing the missing values.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"19 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139027454","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

Jakarta groundwater: victim of its own success 雅加达地下水：自身成功的牺牲品

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-12-16 DOI: 10.1007/s10040-023-02758-8

Paul Whincup, Riza Oktavianus, Chandra Egy

引用次数: 0

Transpiration from crystalline unconfined aquifers as the cause of groundwater salinization in a semiarid area of Brazil 造成巴西半干旱地区地下水盐碱化的结晶非承压含水层蒸腾作用

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-12-13 DOI: 10.1007/s10040-023-02755-x

Marjorie Beate Kreis, Jean-Denis Taupin, Patrick Lachassagne, Nicolas Patris, Eduardo Sávio Passos Rodrigues Martins

{"title":"Transpiration from crystalline unconfined aquifers as the cause of groundwater salinization in a semiarid area of Brazil","authors":"Marjorie Beate Kreis, Jean-Denis Taupin, Patrick Lachassagne, Nicolas Patris, Eduardo Sávio Passos Rodrigues Martins","doi":"10.1007/s10040-023-02755-x","DOIUrl":"https://doi.org/10.1007/s10040-023-02755-x","url":null,"abstract":"The high groundwater salinity of crystalline aquifers in semiarid areas is generally attributed to the dissolution and leaching of meteoric salts that have been progressively evapoconcentrated in the different hydrological compartments under dry climate conditions. A numerical model, simulating water and salt balances, was developed from a case study in Northeast Brazil to: (1) test the validity of this hypothesis, through the quantification of all relevant water cycle processes in the studied watershed, and (2) demonstrate how changes in land cover can impact groundwater salinity. Computations showed that the aridity and the high evapo(transpi)ration rates from the unsaturated zone and/or surface water (ponds, reservoirs) cannot lead to the observed aquifer salinization levels, but only to concentrations of a few tens or hundreds of mg L–1 (Cl–). The only process that can induce a high groundwater salinity, with chloride concentrations up to several g L–1, is the transpiration of groundwater by the deep roots of the vegetation, with a rate reaching 100% of the annual recharge. In this case study, the vegetation involved is the native Caatinga forest. Simulations of the long-term dynamics of groundwater salinity indicate that aquifer areas with high salinity are relicts of the Caatinga pre-colonization period during which subterranean endorheic conditions were prevailing. Following the Caatinga deforestation linked to colonial agricultural development, aquifer recharge increased and endorheism ceased. Consequently, these aquifers may have now been experiencing a desalination process for about three centuries. The desalination spatial variability drivers are explained in the paper.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"10 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138581160","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

Long datasets for improved understanding, management and protection of groundwater 用于更好地了解、管理和保护地下水的长期数据集

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-12-13 DOI: 10.1007/s10040-023-02759-7

John Chilton, Stephen Foster

引用次数: 0

Integrated workflow incorporating the Hurst exponent and interval inversion for evaluating groundwater formations 结合赫斯特指数和区间反演评估地下水层的综合工作流程

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-12-11 DOI: 10.1007/s10040-023-02752-0

Moataz M. G. Abdelrahman, Norbert P. Szabó

{"title":"Integrated workflow incorporating the Hurst exponent and interval inversion for evaluating groundwater formations","authors":"Moataz M. G. Abdelrahman, Norbert P. Szabó","doi":"10.1007/s10040-023-02752-0","DOIUrl":"https://doi.org/10.1007/s10040-023-02752-0","url":null,"abstract":"A novel well-log-analysis approach is presented for an improved prediction of petrophysical properties in groundwater formations. Geophysical well logs are simultaneously processed for quantifying the lithology, storage capacity, and water flow parameters. A fully automated data processing workflow is proposed, the feasibility of which is assured by an appropriate starting model set by the joint application of factor analysis and the Hurst exponent, and a solution of a highly overdetermined inverse problem. The Hurst exponent is used for zone boundary detection, which assists the series expansion-based interval inversion method applied for estimation of the petrophysical parameters of clastic formations. The hydraulic conductivity as a well log is directly derived from the inversion results. The workflow is tested using both synthetic data contaminated with 5% Gaussian distributed noise and real data collected from a thermal water well in Baktalórántháza, eastern Hungary. At the test site, the Hurst exponent extracted from the wireline logs allows one to divide the processed interval into subzones around the Pleistocene-Miocene boundary. The observed wireline logs are inverted to estimate the volumetric parameters (porosity, shale content, water saturation, etc.) of the same zones. The predicted parameters, including hydraulic conductivity, reveal that Pleistocene sediments contain good aquifers with formation quality varying with depth. The shale volume and hydraulic conductivity logs show a proper match with the core data, which confirms the results of the comprehensive analysis. The suggested workflow is recommended for the evaluation of groundwater formations located in different depth domains, from unsaturated sediments to geothermal reservoirs.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"72 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138568425","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

Determinando a origem de um rio utilizando técnicas estatísticas multivariadas: um caso de estudo do Rio Shavor, Irã 利用多元统计技术确定河流发源地：伊朗沙沃尔河案例研究

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-12-07 DOI: 10.1007/s10040-023-02751-1

Sanaz Ebrahimi Varzaneh, Heidar Zarei, Parvaneh Tishehzan, Ali Mohammad Akhondali

引用次数: 0

Analysis of the contribution of rainfall to recharge in the Mu Us Desert (China) based on lysimeter data 基于渗湿计数据的毛乌素沙漠降雨对补给的贡献分析

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-11-30 DOI: 10.1007/s10040-023-02750-2

Xuanming Zhang, Ning Wang, Linshun Cao, Bin Ran, Wenke Wang, Yu Xiao, Zaiyong Zhang, Da Xu, Zhoufeng Wang

{"title":"Analysis of the contribution of rainfall to recharge in the Mu Us Desert (China) based on lysimeter data","authors":"Xuanming Zhang, Ning Wang, Linshun Cao, Bin Ran, Wenke Wang, Yu Xiao, Zaiyong Zhang, Da Xu, Zhoufeng Wang","doi":"10.1007/s10040-023-02750-2","DOIUrl":"https://doi.org/10.1007/s10040-023-02750-2","url":null,"abstract":"Scarce rainfall and strong evaporation add complexities to estimating groundwater recharge in arid and semiarid regions. There are still many gaps in the understanding of how soil water near the ground surface interacts with the atmosphere, which increases the difficulties of determining the contribution of rainfall to groundwater in these regions. This study used a weighing lysimeter to observe the potential recharge over a 1-year period in the Mu Us Desert, northwest China. The observed data were used to explore the infiltration processes and to quantify recharge. The results show: (1) no potential recharge can be observed if the rainfall is less than 12.3 mm/day during the experimental period. The observed annual potential recharge was 29.3 mm, which accounted for 10% of the annual rainfall. (2) The threshold of soil-water content for potential recharge was determined, such that when the average soil moisture along the soil profile (0–100 cm) is larger than 0.12 cm3/cm3, the potential recharge can be observed. (3) The empirical weight function (Poisson distribution) method performed well in the estimation of recharge compared to the observed lysimeter data. In addition, the parameter γ of the Poisson distribution has a linear relationship with the average soil-water content along the soil profile. These findings can help researchers understand recharge, which has significance in groundwater resource management.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"70 ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138525084","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

Identification of the groundwater flow system in the middle reaches of Heihe River Basin (northwestern China) based on stratified groundwater exploration technology 基于分层地下水勘探技术的黑河流域中游地下水流动系统识别

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-11-27 DOI: 10.1007/s10040-023-02753-z

Wei Xie, Dechao Yin, Yujun Zhao, Xi Wu, Wenxiang Wang, Mingming Wang, Yonghui An

{"title":"Identification of the groundwater flow system in the middle reaches of Heihe River Basin (northwestern China) based on stratified groundwater exploration technology","authors":"Wei Xie, Dechao Yin, Yujun Zhao, Xi Wu, Wenxiang Wang, Mingming Wang, Yonghui An","doi":"10.1007/s10040-023-02753-z","DOIUrl":"https://doi.org/10.1007/s10040-023-02753-z","url":null,"abstract":"Heihe River is the second largest inland river in China, but groundwater is the main source of water in the middle reaches of the Heihe River Basin (HRB). The middle reaches of HRB consists of Zhangye and Jiuquan basins. In view of deficiencies in the groundwater exploration techniques, methods, and accuracy associated with previous studies in the HRB, this study used stratified groundwater exploration (monitoring and sampling) techniques to identify the groundwater flow systems. Three fields were considered—groundwater flow dynamics, temperature, and chemical. The results show that stratified groundwater-level monitoring technology can be used to quickly identify groundwater recharge and discharge areas. The main groundwater recharge area in the HRB’s middle reaches is in the piedmont plain, and most of the rest of this middle basin comprises groundwater runoff areas and discharge areas. Shallow groundwater temperatures (average and variation) reflect the characteristics of groundwater recharge, runoff, and discharge. The shallow groundwater temperature gradually increased from the recharge area to the discharge area, and the temperature annual variation tended to be greatest in the central area. Along the direction of groundwater flow, the δD content of shallow groundwater in the HRB’s middle reaches initially increased and then decreased, and the δD content of groundwater in the vertical direction decreased gradually from shallow to deep. The surface-water/groundwater exchange in the central Zhangye Basin mainly occurred in the shallow areas, within 200 m depth. Thus, stratified groundwater exploration technology is helpful for identifying groundwater flow systems in inland arid basins.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"7 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138525096","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

Review: Toward sustainable management of groundwater in the deserts of Egypt 综述:对埃及沙漠地下水的可持续管理

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-11-27 DOI: 10.1007/s10040-023-02738-y

Doaa E. El-Agha, Francois Molle, Mohamed I. Metwally, Sobhy R. Emara, Ahmed Shalby, Asaad M. Armanuos, Abdelazim Negm, Tamer A. Gado

{"title":"Review: Toward sustainable management of groundwater in the deserts of Egypt","authors":"Doaa E. El-Agha, Francois Molle, Mohamed I. Metwally, Sobhy R. Emara, Ahmed Shalby, Asaad M. Armanuos, Abdelazim Negm, Tamer A. Gado","doi":"10.1007/s10040-023-02738-y","DOIUrl":"https://doi.org/10.1007/s10040-023-02738-y","url":null,"abstract":"To achieve its ambitious plans to reclaim its deserts through mega projects, Egypt is heavily relying on fossil or little-recharged groundwater. This article revisits the results and methodologies of the studies conducted over the last two decades on groundwater management and uses in the Western Desert. Most previous studies aimed at simulating different groundwater abstraction scenarios by modeling local areas in aquifer systems, but with poor definitions of boundary conditions and limited historical data. Studies were constrained by the unavailability of data, access difficulties, and high collection costs in desert lands. Thus, to propose reliable sustainable groundwater resources development plans and recommendations for future protection strategies, an open-access monitoring network representing regional aquifers is needed. More investigations based on extensive field visits are essential to monitor environmental, economic, and social conditions, identify constraints, and learn lessons for reclaiming desert lands. Moreover, this review highlighted the need to frame a rational strategy for the long-term sustainable exploitation of non-renewable groundwater in the aquifer systems of Egypt and develop an appropriate exit strategy for desert communities in case of serious water resource depletion.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"32 4","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138525078","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