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Dissertations / Theses on the topic 'Aquifer parameters and hydrochemistry'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

Xiao, Liang. "Evaluation of groundwater flow theories and aquifer parameters estimation." University of the Western Cape, 2014. http://hdl.handle.net/11394/4366.

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Philosophiae Doctor - PhD<br>This thesis deals with some fundamental aspects of groundwater models. Deterministic mathematical models of groundwater are usually used to simulate flow and transport processes in aquifer systems by means of partial differential equations. Analytical solutions for the deterministic mathematical models of the Theis problem and the transient confined-unconfined flow in a confined aquifer are investigated in the thesis. The Theis equation is a most commonly applied solution for the deterministic mathematical model of the Theis problem. In the thesis, a most simplifie

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2

King, Adam C. "The Cressbrook Creek alluvial aquifer system, Southeast Queensland : hydrochemistry and isotopes to determine hydrological processes and response to floods." Thesis, Queensland University of Technology, 2014. https://eprints.qut.edu.au/78443/1/Adam_King_Thesis.pdf.

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This study developed an understanding of hydrological processes within the Cressbrook Creek catchment of the upper Brisbane River, in particular for the alluvial aquifers. Those aquifers within the lower catchment are used for intensive irrigation, and have been impacted by long-term drought followed by flooding. The study utilised water chemistry, isotopic characters and hydraulic measurements to determine factors such as recharge, links between creeks and groundwater, and variations in water quality. The catchment-wide study will enable improved management of the local water resources.

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3

Elliott, Mark. "Polycyclic Aromatic Hydrocarbons and Redox Parameters in a Creosote-Contaminated Aquifer." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/31195.

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A groundwater monitoring study was conducted as part of a comprehensive program to remediate a former wood-preserving site that was contaminated with creosote. Twenty-five multi-level samplers (MLSs) were installed on-site and groundwater samples were collected and tested regularly between March 1998 and July 2000. Nearly one-thousand hybrid poplar trees were planted on-site in 1997 to help contain the groundwater plume and enhance phytoremediation. Ten polycyclic aromatic hydrocarbons (PAHs) were monitored along with several terminal electron acceptors (TEAs) and their reduced end products

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4

Vanhaitsma, Amanda Joy. "Methods for Evaluating Aquifer-System Parameters from a Cumulative Compaction Record." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/72245.

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Although many efforts and strategies have been implemented to reduce over-pumping of aquifer-systems, land subsidence is still a serious issue worldwide. Accurate aquifer characterization is critical to understand the response of an aquifer-system to prolonged pumping but is often difficult and expensive to conduct. The purpose of this thesis is to determine the validity of estimating aquifer-system parameters from a single cumulative compaction record and corresponding nested water-level data deconvolved into temporal components. Over a decade of compaction and water-level data were collecte

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5

Gastmans, Didier [UNESP]. "Hidrogeologia e hidroquímica do Sistema Aqüífero Guarani na porção ocidental da bacia sedimentar do Paraná." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/102870.

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Made available in DSpace on 2014-06-11T19:32:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-04-19Bitstream added on 2014-06-13T20:43:11Z : No. of bitstreams: 1 gastmans_d_dr_rcla.pdf: 6127390 bytes, checksum: ab710341c81fc6a1a52c3f6d1d493132 (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>O fluxo das águas subterrâneas no SAG, em sua porção ocidental, é caracterizado pela existência de três áreas de recarga regional, localizadas em Mato Grosso do Sul e Goiás. A partir destas áreas de recarga o fluxo regional é radial direcionado para o centro da Ba

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6

Taskan, Cuneyt. "Determination Of Hydraulic Parameters Of Semi-infinite Aquifers Using Marquardt Algorithm." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12604735/index.pdf.

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In this study, transmissivity and storage coefficient of a semi-infinite, confined, homogeneous and isotropic aquifer, where the flow is one-dimensional and linear, are determined using Marquardt algorithm, considering two independent cases: constant drawdown in the adjacent stream<br>or constant discharge from the aquifer due to pumping at a constant rate. In the first case piezometric head and discharge measurements are utilized. Hydraulic diffusivity, which is the ratio of transmissivity to storage coefficient, is determined from piezometric head measurements<br>whereas their product is det

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7

Gastmans, Didier. "Hidrogeologia e hidroquímica do Sistema Aqüífero Guarani na porção ocidental da bacia sedimentar do Paraná /." Rio Claro : [s.n.], 2007. http://hdl.handle.net/11449/102870.

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Resumo: O fluxo das águas subterrâneas no SAG, em sua porção ocidental, é caracterizado pela existência de três áreas de recarga regional, localizadas em Mato Grosso do Sul e Goiás. A partir destas áreas de recarga o fluxo regional é radial direcionado para o centro da Bacia do Paraná. Em algumas porções das zonas de aforamento ocorrem fluxos localizados de descarga. As águas apresentam características químicas que permitem sua classificação em: bicarbonatadas cálcicas ou calco-magnesianas, bicarbonatadas sódicas e bicarbonatadas cloretadas/sulfatadas sódicas, representando, nesta ordem, a sua

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8

Matynowski, Eric D. "Groundwater Modeling and Hydrogeological Parameter Estimation: Potomac Aquifer System, SWIFT Research Center." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/99171.

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The Sustainable Water Interactive for Tomorrow (SWIFT) project in eastern Virginia is a Managed Aquifer Recharge project designed to alleviate the depletion of the Potomac Aquifer System due to unsustainable groundwater withdrawals. At the SWIFT Research Center (SWIFTRC) in Nansemond, VA, a pilot testing well (TW-1) has been implemented to help determine the feasibility of full-scale implementation. The pumping data from TW-1 and observation head data from surrounding monitoring wells (MW) at the SWIFTRC were used to calculate hydrogeological parameters (transmissivity, hydraulic conductivity,

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9

Barba, Ferrer Carme. "Physical, geochemical and microbial parameters driving the improvement of water quality in managed aquifer recharge." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/671103.

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Worldwide water demand has been increasing over time, mainly due to population growth and society development. In addition, climate change is causing a significant alteration of the periodicity and intensity of precipitation and climate related events. All this implies significant challenges for a sustainable exploitation of water resources specially during water scarcity periods. Therefore, Managed Aquifer Recharge (MAR) represents a feasibly solution to deal with future water management challenges through the storage of available water in aquifers. The present dissertation is focused on t

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10

Lunardi, Marina [UNESP]. "Estudo hidroquímico do complexo Termal de Caldas Novas (GO), Brasil." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/144662.

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Magalhães, Aparecida de. "Estudo hidroquímico das águas subterrâneas do Aquífero Furnas na região sudeste do estado de Mato Grosso." Universidade Federal de Mato Grosso, 2015. http://ri.ufmt.br/handle/1/233.

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Gadt, Jeff W. "Hydrogeology and Hydrochemistry of the East-Central Portion of The Salt Lake Valley, Utah, as Applied to Wellhead Protection in a Confined To Semiconfined Aquifer." DigitalCommons@USU, 1994. https://digitalcommons.usu.edu/etd/6781.

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The Safe Drinking Water Act includes provisions for state wellhead protection programs which address wellhead protection areas. In Utah, these areas are called drinking water source protection (DWSP) zones. Zones Two and Three are delineated according to analytical or numerical techniques, which are based on hydrogeological and time-of-travel data, as well as recharge information, accumulated through the use of hydrogeologic and hydrochemical techniques. The primary conclusions of this research are: 1) A fence diagram and site hydrostratigraphic diagram show that the hydrogeology is more compl

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Inkenbrandt, Paul C. "Estimates of the Hydraulic Parameters of Aquifers in Cache Valley, Utah and Idaho." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/760.

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Hydraulic parameters of aquifers in Cache Valley were compiled from existing but largely unpublished data, from specific capacity data reported in well drillers' records, and from aquifer tests conducted for this study. A GIS database was also created to organize this information. A complete and thorough literature review was performed, which included obtaining unpublished aquifer test data from state and federal agencies, as well as reviewing Drinking Water Source Protection plans for each municipality in the valley. Well drillers' records were obtained from the Utah Division of Water Right

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14

Truini, Margot. "The use of Hydrochemistry to Identify Potential Processes Operating in the Saddle Mountains Basalt Aquifer and the use of the Nitrate-nitrogen Isotope to Distinguish between Potential Sources of Nitrate to the Shallow Alluvial Aquifer in the Lower Umatilla Basin, Oregon." PDXScholar, 1996. https://pdxscholar.library.pdx.edu/open_access_etds/5206.

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Nitrate concentration in excess of national drinking-water standards (10 mg/l) are present in the shallow alluvial aquifer and Saddle Mountains Basalt (SMB) aquifer in the Lower Umatilla Basin, Oregon. To determine sources responsible for elevated nitrate concentrations in the SMB aquifer mass-balance and reaction-path models (NETPATH and PHREEQE) were used to understand observed geochemical trends. Nitrate-nitrogen isotopes were used to distinguish potential nitrate sources in the shallow alluvial aquifer. NETPATH-validated simple water/rock reactions in the SMB aquifers in Irrigon (dissolvin

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15

Adelana, Segun Michael Adegboyega. "Groundwater resource evaluation and protection in the Cape Flats, South Africa." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_5620_1298543516.

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<p>The analysis of geologic, hydrologic and hydrogeologic data interpreted to give the characteristics of the Cape Flats aquifer showed the quality of groundwater from the aquifer is suitable for development as a water resource. The conceptual model of the Cape Flats sand shows an unconfined sandy aquifer, grading into semi-confined conditions in some places where thick lenses of clay and peat exists. Recharge rates through the saturated zone of the Cape Flats aquifer have been determined by water table fluctuation (WTF), rainfall-recharge relationship, soil water balance and chloride mass bal

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16

Ezzy, Timothy Robert. "Integrated Approach to Characterisation of Coastal Plain Aquifers and Groundwater Flow Processes: Bells Creek Catchment, Southeast Queensland." Thesis, Queensland University of Technology, 2005. https://eprints.qut.edu.au/16166/1/Tim_Ezzy_Thesis.pdf.

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Low-lying coastal plains comprised of unconsolidated infill are internally complex hydrogeological settings, due to the high level of heterogeneity in the infill material. In order to resolve the hydrogeological processes active in these complex settings, an integrated multi-disciplinary, geoscientific approach is required. This research determines quantitatively, the effects of sedimentary aquifer heterogeneity on groundwater flowpaths and groundwater processes within a heavily laterised, coastal plain setting. The study site is the Bells Creek catchment in southeast Queensl

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17

Ezzy, Timothy Robert. "Integrated Approach to Characterisation of Coastal Plain Aquifers and Groundwater Flow Processes: Bells Creek Catchment, Southeast Queensland." Queensland University of Technology, 2005. http://eprints.qut.edu.au/16166/.

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Low-lying coastal plains comprised of unconsolidated infill are internally complex hydrogeological settings, due to the high level of heterogeneity in the infill material. In order to resolve the hydrogeological processes active in these complex settings, an integrated multi-disciplinary, geoscientific approach is required. This research determines quantitatively, the effects of sedimentary aquifer heterogeneity on groundwater flowpaths and groundwater processes within a heavily laterised, coastal plain setting. The study site is the Bells Creek catchment in southeast Queensland, Austra

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18

Hassane, Saley Abdel Kader. "Évaluation des ressources en eau de l’aquifère du Continental Intercalaire/Hamadien de la Région de Tahoua (bassin des Iullemeden, Niger) : impacts climatiques et anthropiques." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS192/document.

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Dans la région de Tahoua (Niger), qui fait partie du bassin des Iullemeden, le système aquifère multicouche profond du Continental Intercalaire/Hamadien (CI/H) représente une réserve essentielle. Il est utilisé pour l'alimentation en eau potable des populations, pour les besoins en eau des industries extractives, et pour l'abreuvage du bétail, en raison de la dégradation de la qualité et le très faible débit des nappes phréatiques, et de celles du Crétacé supérieur. Malgré quelques études hydrogéologiques classiques conduites sur ce système aquifère, il reste mal connu, notamment en ce qui con

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19

Paim, Rosana Alves. "Avaliação da qualidade da água subterrânea de poços ponteira no município de Osório, RS." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/179912.

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Este trabalho buscou avaliar a qualidade da água subterrânea de poços ponteira, que captam água do Sistema Aquífero Quaternário Costeiro (SAQC) na região de Osório (RS), através da aplicação de diferentes métodos. Para a realização do estudo foi feito um inventário e cadastramento de poços, o levantamento e interpretação de dados geológicos e hidrogeológicos, além da coleta e análise de amostras de água. Para este trabalho foram utilizados dados físico-químicos e bacteriológicos, obtidos através das análises de água (campo e laboratório), que foram coletadas em 26 poços. A avaliação dos result

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20

Reeder, Philip. "The Use of Down-Hole Video to Evaluate Parameters Affecting Removal of Storm Water Runoff into a Karst Aquifer in Bowling Green, Kentucky." TopSCHOLAR®, 1988. http://digitalcommons.wku.edu/theses/1991.

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Due to recent land use changes, runoff has greatly increased In Bowling Green, necessitating the drilling of nearly 600 drainage wells to direct storm water into the Lost River Karst Aquifer. Research was conducted to (1) differentiate areas of the city as optimal for removal of storm water runoff, (2) correlate lithologic features between wells, and (3) determine optimal depths to which new drainage wells should be drilled. This was accomplished using maximum capacity tests, correlation of lithologic features between wells and comparing void density to depth below the land surface. It was onl

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Hachaichi, Zohra. "Quantification de la recharge naturelle et artificielle d'un système aquifère soumis à des contraintes climatiques et anthropiques en zone semi-aride (bassin de Sbiba et Foussana) Tunisie centrale." Thesis, Avignon, 2017. http://www.theses.fr/2017AVIG0053/document.

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Située au Nord-Ouest de la Tunisie centrale, le bassin de Foussana du gouvernorat de Kasserine constitue une zone de transition entre la région tellienne pluvieuse au Nord et la région saharienne au Sud. Il est bordé par une série de reliefs de formes et de directions variées. Dans cette région aride à semi-aride, l’eau souterraine représente la principale réserve et ressource de production d’eau. Du point de vue tectonique, le bassin de Foussana est caractérisé par la présence de multiples failles. Les failles de direction NW-SE, dont la plus importante est celle qui s’aligne parallèlement à

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Medeiros, Jailsa da Silva. "An?lise dos fatores respons?veis pela alta salinidade do aq??fero fissural da microbacia do Riacho do Feij?o - Pedro Avelino/RN." Universidade Federal do Rio Grande do Norte, 2006. http://repositorio.ufrn.br:8080/jspui/handle/123456789/16790.

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Made available in DSpace on 2014-12-17T15:19:59Z (GMT). No. of bitstreams: 1 JailsaSM.pdf: 722262 bytes, checksum: b5daa60e103a373c84c164786328442f (MD5) Previous issue date: 2006-05-19<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>The fissures aquifer northeast semi-arid Brazilian, present high text frequently of leave, with of low a h?dric availability. The research has as objective main to analyze the components that inside influence in the salinity of the waterbearing fissures of an evaluation physicist-chemistry of the water, leading in consideration the physical i

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Camponogara, Isabel. "VULNERABILIDADE NATURAL NO SISTEMA AQÜÍFERO GUARANI E ANÁLISE DE PARÂMETROS FÍSICO-QUÍMICOS DAS ÁGUAS SUBTERRÂNEAS EM QUARAÍ, BR E ARTIGAS, UY." Universidade Federal de Santa Maria, 2006. http://repositorio.ufsm.br/handle/1/9476.

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This research was developed with the intention of understanding the aquifer dynamics and the underground spring s preservation. In that sense, it was had as main objective to study the natural vulnerability of the Guarani Aquifer System and to analyze physiochemical parameters of the groundwater in the cities of Quaraí - Brazil and Artigas - Uruguay, due to the exploited waters of this aquifer, they be used mainly for human consumption. This way, it was used for the execution of the study, pré-existent data, field research and computer techniques. The methodology used to study the aquifer natu

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Chaves, Adilson de. "MONITORAMENTO DE ÁGUAS SUBTERRÂNEAS EM UM EMPREENDIMENTO POTENCIALMENTE POLUIDOR NO MUNICÍPIO DE SANTA MARIA/ RS." Universidade Federal de Santa Maria, 2009. http://repositorio.ufsm.br/handle/1/7714.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Growndwater consist of strategic resources essential for public and private water supply. Therefore, the aquifer research by means of groundwater monitoring has been considered very important. In groundwater polluted potential enterprises, a system of monitoring is necessary, because it can not only allow contamination evidences previously, but also provide reference measures in order to portray the aquifer s hydrochemistry and hydrodynamics. The purpose of this study is to establish natural values and temporal variation frequenc

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Asmael, Nazeer. "Hydrochimie, isotopie et modélisation hydrodynamique pour la caractérisation du système aquifère multicouche amont de la rivière Awaj - Bassin de Damas (Syrie)." Thesis, Bordeaux 3, 2015. http://www.theses.fr/2015BOR30009/document.

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Le bassin hydrologique du Barada et de l’Awaj est le plus important et le plus intensément exploité de Syrie. Le sous bassin amont de la rivière Awaj occupe la partie sud-ouest de ce bassin. Dans cette région aride, l’eau souterraine représente la principale réserve et ressource de production d’eau. Dans l’optique de caractériser le fonctionnement du système hydrogéologique multicouche local et de calculer un bilan hydrologique pour l’aquifère superficiel, une méthodologie multi techniques couplant hydrochimie, isotopie et hydrodynamisme a été déployée. L’analyse détaillée des données hydrochi

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Shorieh, Amani. "Nouvelle approche d'estimation de la vulnérabilité des aquifères combinant le modèle DRASTIC et la sensibilité des sols à l'infiltration. Application à l'aquifère du Dogger dans l'interfluve Clain-Vienne, Poitou-Charentes, France." Thesis, Poitiers, 2014. http://www.theses.fr/2014POIT2274.

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Cette étude s'intéresse, par l'utilisation de la cartographie, à l'évaluation de la vulnérabilité des eaux souterraines aux pollutions en particulier à la vulnérabilité intrinsèque des nappes libres. Dans cette optique, une étude bibliographique sur les méthodes d'estimation de la vulnérabilité des nappes a été menée. A partir de cette étude bibliographique on a trouvé que la méthode DRASTIC a été considérée comme la base de la plupart des études de vulnérabilité.L'aquifère du Dogger convient tout-à-fait à une application des différentes méthodologies. En effet, grâce à son importance en tant

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Leng, Chia-Hao, and 冷家豪. "Application of Extended Kalman Filter for Identifying Aquifer Parameters." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/05936271730523052773.

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碩士<br>國立交通大學<br>環境工程所<br>89<br>A method using extended Kalman filter (EKF) and cubic spline is proposed to identify the aquifer parameters in both confined and unconfined aquifer systems. The Theis solution combined with EKF, using the interpolated drawdown data produced by cubic spline, can optimally determine the parameters for confined aquifer through the recursive filtering process. In an unconfined system, Neuman’s model is employed by the same manner as the Theis solution to determine the aquifer parameters. The proposed method can quickly identify the parameters, using only p

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Huang, Wei-Chieh, and 黃偉杰. "A NUMERICAL METHOD FOR DETERMINING PARAMETERS OF UNCONFINED AQUIFER." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/61221095701361849003.

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碩士<br>國立交通大學<br>環境工程研究所<br>84<br>A method using the nolinear least-squares and Newton's method is proposed to identify the parameters from pumping test in homogeneous and anisotropic unconfined aquifer. Based on the least-squares approach, the sumof the squares of difference between the observed drawdowns and predicteddrawdown using the estimated parameters is minimizied. The Newton's methodand Guass elimination are used to solve the system of nonlinear least- squaresequations for the unkno

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Wu, Shih-Ching, and 吳詩晴. "Estimation of Effective Hydrogeological Parameters in a Heterogeneous Aquifer." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/97648204292367247780.

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博士<br>國立臺灣大學<br>生物環境系統工程學研究所<br>100<br>Spatial heterogeneity is ubiquitous in nature; and variability of parameter in subsurface is extensive. The effective parameters are obtained by conceptualizing the heterogeneous soil formation as an equivalent homogeneous medium that will discharge approximately the same flux as the ensemble flux of the heterogeneous formations. This study proposed a modified form of Tabu Search (TS) embedded Adjoint State Method (ASM), entitled “Modified Tabu Search Method (MTM)”, to estimate effective parameters for anisotropic, heterogeneous aquifers. MTM is validate

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黃彥禎. "Application of extended kalman filter for identifying leaky aquifer parameters." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/44708629814932438150.

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碩士<br>國立交通大學<br>環境工程所<br>90<br>A method using extended Kalman filter (EKF) is presented to identify the aquifer parameters in leaky aquifer systems with and without considering the storage effect in the aquitard. In the case without considering the aquitard storage effect, the Hantush and Jacob’s solution combined with EKF can optimally determine the parameters for the leaky aquifer when analyzing the drawdown data interpolated by Lagrangian polynomial method. Coupled the Neuman and Witherspoon’s model, the EKF is also employed to estimate the four aquifer parameters. The proposed m

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Chang, Chun-Hao, and 張君豪. "Using simulated annealing to analyze aquifer parameters for constant-flux test performed in a two-zone confined aquifer." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/9zwavw.

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碩士<br>國立交通大學<br>環境工程系所<br>92<br>The drilling or development in well construction may create a skin zone around the well. A patchy aquifer is an aquifer which has a disc of anomalous hydraulic properties differing from adjacent formation. A patchy aquifer or an aquifer with a skin can be considered as a radial two-zone aquifer system. A two-zone aquifer may have five aquifer parameters, i.e., two transmissivities (one for the skin and another for the formation), two storage coefficients (one for the skin and another for the formation), and one skin thickness. The hydrologists often use a gr

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LIN, Ko-Wei, and 林克維. "River Water Level Changes to Groundwater Level in the Aquifer Affect Viewing Aquifer Heterogeneous Distribution of Hydrogeological Parameters." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/33jh2h.

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碩士<br>國立雲林科技大學<br>環境與安全衛生工程系<br>103<br>As source is pumping to influence the groundwater table scant, unless it is largest. Therefore, this study as source is happening river flood. It is usually happen when the heavy raining. Estimated hydrogeological parameters distribution field increased uncertainty when it raining. This study used the rubber dam at New Huwei Creek to let the surface water level change. The surface water level is rising as a river flood event. All of flood events deducted flood event of rainfall than obtain the non-rainfall flood events the hydrogeological heterogeneity di

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Ko, Hsiu-Ling, and 柯秀玲. "Real Time Identification of the Parameters of Aquifer in the Coastal Region." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/71453086584874925350.

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碩士<br>國立成功大學<br>水利及海洋工程學系<br>86<br>Pumping test is one of the major methods to identify the parameters of aquifer (i.e.,Transmissibility and Storage Coefficient) at field. As Taiwan isan island surrounding by the ocean, the groundwater level near shore is affected significantly by the periodic tidal fluctuation. This periodic fluct-uation affects the drawdown while pumping test is carried out.So,it is necess-ary to filter the tidal influence before determining the correct paramete

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Yung-PingHuang and 黃傭評. "Estimation of Aquifer Parameters and Groundwater Recharge in Basin Using Hydrograph Records." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/79167635909509110817.

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博士<br>國立成功大學<br>資源工程學系碩博士班<br>99<br>In groundwater hydrology, transmissivity (T) and storativity (S) are important parameters in groundwater recharge estimation. This study develops an analytical approach to estimating T in basins with the use of the stream hydrographs of water level and flow records. Our physical model describes T values in unconfined aquifers as large-scale basin T averages. The proposed analytical approach is useful when data on basins are scarce. In Taiwan, precipitation varies across locations and seasons. The annual mean rainfall is approximately 2,500 mm, 80% of which

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Kuan, Wen-chi, and 關婉琪. "Study of the Influences of Semi-confined Layers on Estimation of Aquifer Parameters." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/03936247932379754641.

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碩士<br>國立中央大學<br>地球物理學系<br>85<br>This study employs the Lapalce-Hankel domain solutions of various leaky aquifer models to analyze and understand howdrawdown variations of aquitards are influenced by pumping in aquifers. Two different types of models, three-layers models and five-layers models, are developedto investigate the problems of interest. Three-layers models are suitable for conditions where an aquiclude underlies the aquifer, while five-layers models for conditions where an aquit

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Chang, Yu-Ling, and 張毓玲. "Estimation of the Hydrogeological Parameters in Confined Aquifer Using Groundwater Variations after Earthquake." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/70731383241307667707.

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碩士<br>國立臺灣大學<br>土木工程學研究所<br>100<br>This study proposes a new methodology to estimate transmissivity and storage coefficient of confined aquifer. The hourly groundwater level observations after Chi-Chi earthquake in 48 hours are collected. It is found out the groundwater variations after earthquake acts as that of pumping test. Such phenomenon explains the earthquake is like a regional uniform pumping test, and the drawdown can be used to identify the hydrogeological parameters of aquifer. Two conceptual models are established to simulate the uniform pumping test within the radius of influence

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Lu, Yi Feng, and 盧宜豐. "Stochastic Approaches for the Pressure Fluctuation and the Hydraulic Parameters Identification in Phreatic Aquifer." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/41979535722738968649.

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Lin, Yong-Qing, and 林永清. "Spatial Estimation of Hydrogeological Parameters by Using Data Mining Methods in Pingtung Plain Aquifer." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/b2722y.

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碩士<br>國立中央大學<br>土木工程學系<br>106<br>To face the likelihood and severity of water shortage, understanding the hydrogeological conditions and groundwater flow are important. Hydrogeological parameters of aquifer such as hydraulic conductivity (K) and storage coefficient (S) are the essential and crucial basic data in the groundwater modeling and resource assessment. However, traditionally, the estimation of hydrogeological parameters is inefficient in spatial resolution, time consuming and expensive from pumping test. In this study, a data mining framework based on Extended Empirical Orthogonal Fun

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Rahi, Khayyun Amtair. "Estimating the hydraulic parameters of the Arbuckle-Simpson aquifer by analysis of naturally-induced stress." 2010. http://digital.library.okstate.edu/etd/Rahi_okstate_0664D_10810.pdf.

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Liu, Yu-Chian, and 劉育銓. "Effects of Aquifer Characteristics on the Contaminant Transport in Groundwater and the Estimation of Kinetics Parameters." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/59470378806268044003.

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碩士<br>國立交通大學<br>環境工程所<br>89<br>The objectives of this thesis are to investigate the influences of hydrogrologic characteristics on the migration of contaminants in a confined aquifer, and to estimate the first-order and Monod kinetics parameters. Considering the effects of aquifer heterogeneity, anisotropy, and lateral dispersion, the results of contaminant transport modeling can be more representative for the real distribution. This study shows that under the influence of heterogeneity, the contaminant plume spreads and migrates unevenly. The funnel-and-gate system may fail to capture and tre

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Yu, Sheng-Kai, and 游勝凱. "Application of Adjoint State Method With Conjugate Gradient Method to Estimate Hydrogeological Parameters in Inclined Leaky Aquifer." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/10085795337123094839.

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碩士<br>國立臺灣大學<br>生物環境系統工程學研究所<br>94<br>The purpose of this research is aimed on inverse estimating the hydrogeological parameter of an inclined leaky aquifer. The processes of inverse problem is used to simulate the free surface of groundwater flow in not horizontal and saturated unconfined aquifer, namely the Boussinesq equation. An optimal procedure is proposed in this study to apply Conjugate Gradient Method to optimize the spatial distribution of the hydraulic conductivity and Adjoint State method is also used to enhance the efficiency of the optimization. A sand box test is also designed t

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Deleu, Romain. "Hydrology of the karstic basin of Sprimont, Belgium : On the use of spectrofluorimetry and pharmaceutical substances as a supporting tool for hydrochemistry analysis." Thesis, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-161567.

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The strong variation in carbonate content of the geological formations in the basin of Sprimont, Belgium, implies different groundwater behaviours in the substratum. The existence of carbonated materials such as limestone is responsible for the existence of a well-developed karstic system restricted to the Carboniferous materials which has a strong impact on the local hydrology and hydrogeology. Surface streams lose through local sinkholes to resurface at the spring of Trou Bleu, the only outlet of the basin and the drainage point of local aquifers. The study focuses on the assessment of exist

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Priyanka, B. N. "Parameter Estimation to Determine the Groundwater Flow and Seawater Intrusion in a Coastal Aquifer of Karnataka, India." Thesis, 2019. https://etd.iisc.ac.in/handle/2005/4426.

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Seawater Intrusion (SWI) into the fresh groundwater aquifers is one of the major hydrological problems in coastal regions. This global issue is aggravated by increasing demands for fresh groundwater due to on-going urbanization, population growth, and economic development in these regions. Freshwater and seawater mixing is by mechanical dispersion and hydrodynamic diffusion, which results in the formation of the transition zone. The position and width of the transition zone change with hydrogeological, hydrological circumstances, and anthropogenic activities such as excessive groundwater extra

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Wilske, Cornelia Maria. "Identification of water origin and water-rock interaction in a complex multi-aquifer system in the Dead Sea Rift by applying chemistry and isotopes." 2018. https://tubaf.qucosa.de/id/qucosa%3A36593.

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Die vorliegende Studie befasst sich mit einer hydrochemischen Untersuchung des Aquifersystems auf der Westseite des Toten Meeres. Für die Untersuchungen der Grundwasserressourcen der kreidezeitlichen Grundwasserleiter, insbesondere Grundwasserherkunft, Mischprozesse, Identifizierung von Wasser-Gesteins- Wechselwirkungen, Datierung von Grundwasseraltersbereichen, Identifizierung der Herkunft des Quellen an der Küste des Toten Meeres und Abtrennung quartärer Grundwassermuster, wurde eine Tracerkombination auf Wasser- und Gesteinsproben angewendet. Die hier vorgestellte Multitracer-Methodik ist a

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Τάντος, Βασίλειος. "Περιβαλλοντική υδρογεωλογική έρευνα του προσχωματικού υδροφόρου της περιοχής Κιάτου - Κορίνθου. Κατασκευή μοντέλου προσωμοίωσης της υπόγειας ροής". 2006. http://nemertes.lis.upatras.gr/jspui/handle/10889/1118.

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Η περιοχή μελέτης εκτείνεται στο βόρειο και παραλιακό τμήμα του νομού Κορινθίας μεταξύ των πόλεων Κιάτου και Κορίνθου και καταλαμβάνει έκταση 65km2. Η νέα εθνική οδός Κορίνθου – Πατρών αποτελεί το νότιο όριο της περιοχής ενώ προς βορρά περιορίζεται από τον Κορινθιακό κόλπο. Το τοπογραφικό ανάγλυφο είναι ήπιο με το υψόμετρο να κυμαίνεται από 0 – 50 μέτρα. Ο ποταμός Ασσωπός και οι χείμαρροι Ραχιάνης και Ζαπάντης δομούν το υδρογραφικό δίκτυο της περιοχής. Το γεωλογικό υπόβαθρο της περιοχής αποτελείται από ανθρακικά ιζήματα των ζωνών Τρίπολης και Πίνδου, των οποίων υπέρκεινται μετα-ορογεντικά ιζ

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