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Dissertations / Theses on the topic 'Groundwater circulation'

Author: Grafiati

Published: 10 March 2023

Last updated: 31 July 2025

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1

Bajjali, William Tawfiq. "Recharge and regional circulation of thermal groundwater in northern Jordan using isotope geochemistry." Thesis, University of Ottawa (Canada), 1994. http://hdl.handle.net/10393/6671.

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The scarcity of water resources in Jordan poses difficulties for the development of the country and its relationship with its neighbours. Thermal groundwaters recently identified in the northern part of the country represent a 40 MCM/y resources for exploitation to meet the increasing demand for water. These thermal groundwaters are found in three well fields (Mukhebeh, JRV and Ramtha) and were investigated to determine their recharge origin, mean subsurface residence times, and the source of heat. They discharge in the northern part of Jordan Rift Valley and the rifted Yarmouk Valley, which a

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2

Winter-Billington, Alexandra. "The hydrological system and climate of Brewster Glacier, Tititea Mt Aspiring National Park, Southern Alps, Aotearoa New Zealand, in the context of climate change : a thesis submitted to the Victoria University of Wellington in partial fulfilment of the requirements for the degree of Master of Science in Physical Geography /." ResearchArchive@Victoria e-Thesis, 2008. http://hdl.handle.net/10063/670.

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3

Nespoli, Massimo <1988&gt. "Modeling earthquake-fluid interaction: shallow effects on groundwater circulation and induced seismicity in deep geothermal exploitation." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7530/1/nespoli_massimo_tesi.pdf.

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The interaction between earthquakes and crustal fluids is a very complex topic due to several mechanisms that are involved and which influence each other. Some phenomena, like the alterations of springs discharge rates and fluid flow, liquefaction and changing of the water levels in phreatic wells are largely documented in the literature, but their explanation is not yet fully clear. Furthermore, these phenomena can greatly change with the rock type, the earthquake magnitude and the observation distance from the fault. Within a distance of a few fault lengths from the epicenter, an earthquake

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4

Nespoli, Massimo <1988&gt. "Modeling earthquake-fluid interaction: shallow effects on groundwater circulation and induced seismicity in deep geothermal exploitation." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7530/.

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The interaction between earthquakes and crustal fluids is a very complex topic due to several mechanisms that are involved and which influence each other. Some phenomena, like the alterations of springs discharge rates and fluid flow, liquefaction and changing of the water levels in phreatic wells are largely documented in the literature, but their explanation is not yet fully clear. Furthermore, these phenomena can greatly change with the rock type, the earthquake magnitude and the observation distance from the fault. Within a distance of a few fault lengths from the epicenter, an earthquake

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5

Schaffer-Jin, Yulan [Verfasser], Martin [Akademischer Betreuer] Sauter, and Ekkehard [Akademischer Betreuer] Holzbecher. "Investigations on groundwater dewatering by using vertical circulation wells: Numerical simulation method development and field validation / Yulan Schaffer-Jin. Gutachter: Martin Sauter ; Ekkehard Holzbecher. Betreuer: Martin Sauter." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2015. http://d-nb.info/1068361964/34.

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6

Bejannin, Simon. "Décharge d'eau souterraine en mer et circulation d'eau de mer dans les sédiments : flux d'eau et d'éléments chimiques le long du littoral méditerranéen français." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30324.

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L’importance hydrogéologique et biogéochimique des apports d’eau souterraine en mer a récemment été mise en évidence. De nombreuses études ont été réalisées à travers le monde, mais très peu ont été menées sur le littoral méditerranéen, malgré la présence de nombreuses résurgences karstiques (Port-Miou, La Palme, Font Estramar…). L’utilisation de l’imagerie infrarouge thermique a permis la détection des décharges d’eau souterraine le long de ce littoral. Les flux d’eau et de nutriments ont ensuite été estimés à l’aide des isotopes du radium (223Ra, 224Ra et 228Ra). Nous montrons que les flux d

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7

Ben, Maamar Sarah. "Biodiversité des eaux souterraines dans un gradient de temps de résidence et d'influence anthropique : approches métagénomique et géochimique couplées." Thesis, Rennes 1, 2016. http://www.theses.fr/2016REN1S108/document.

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Les aquifères de socle fracturés très répandus en Bretagne, constituent des formations géologiques hétérogènes renfermant des ressources en eau. Ces structures sont souvent constituées d'une zone altérée et d'une zone fracturée. La zone altérée est peu épaisse et proche de la surface, elle est constituée de roches altérées envahies par l'eau souterraine qui y circule rapidement des hauts topographiques du bassin versant vers l'exutoire. L'eau y présente des temps de résidence courts (<20 ans) et est souvent polluée par les nitrates. La zone altérée située plus en profondeur et plus épaisse

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8

Ranchoux, Coralie. "Caractérisation géochimique et datation des circulations d'eaux profondes dans la zone critique : cas du bassin versant du Strengbach." Thesis, Strasbourg, 2020. http://www.theses.fr/2020STRAH010.

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Le travail de thèse porte sur la caractérisation géochimique et la détermination des temps de résidence des eaux circulant dans la partie profonde du substratum du bassin versant du Strengbach. Le travail s’appuie sur l’étude comparée des variations chimiques, isotopiques (87Sr/86Sr, 143Nd/144Nd et (234U/238U)) et des geochronomètres des eaux (CFC-SF6, 14C, 4He) d’échantillons de sources, de piézomètres (15 m de profondeur) et de forages profonds. Les résultats mettent en évidence deux types d’eaux, avec des eaux peu chargées en surface (eaux de sources et de piézomètres) et des eaux plus char

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9

Lee, Po-Yu, and 李柏瑜. "A Study on the Using Groundwater Circulation to Lowering Interior Space Temperature." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/7wy2dt.

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碩士<br>國立勤益科技大學<br>冷凍空調系<br>102<br>The location of Taiwan is in the subtropical zone. Sunshine of summer is for so long time, the weather is very hot. More than 90% of the domestic building is consist of reinforced concrete structure. some buildings have a hut on the roof, so the inside of building is very hot, especially on the top floor. Wall still maintain high temperature after the sun goes down. In order to solve the house and the wall of the heat absorbed. Larger air conditioning output to be processed. Lead to increased energy consumption and costs-it’s non-economic way. Therefore, renew

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10

Hsu, Ming-Yi, and 徐明逸. "Research on the Feasibility of Circulation System on Electrolyzing Oxidation Treatment of Trichlorethylene in Groundwater." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/24573877272742622421.

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碩士<br>崑山科技大學<br>環境工程研究所<br>105<br>In this study, IrO2 electrode and Pt electrode were selected as working electrode to conduct electrolysis experiments of TCE-contaminated groundwater. The removals of TCE were examined under various potential controls in the batch reactor as well as in the continuous-flow reactor. The results of IrO2 batch experiments showed that removal efficiencies are 82.29%, 85.37%, 99.84% and 99.9% after electrolyzing 2 hour at 1.5 V, 2.0 V, 2.5V and 3.0 V, respectively. The results of Pt batch experiments showed that removal efficiencies are 40.51%, 64.31%, 76.47% and 99

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11

Schaffer-Jin, Yulan. "Investigations on groundwater dewatering by using vertical circulation wells: Numerical simulation method development and field validation." Thesis, 2014. http://hdl.handle.net/11858/00-1735-0000-0022-5DE5-4.

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Die künstliche Grundwasserabsenkung stellt eine wichtige Maßnahme für die Entwässerung von Baugruben und bergbaulich genutzten Flächen dar. Eine erfolgreiche und zielgerichtete Absenkung des Grundwasserspiegels setzt ein zweckmäßiges Design und die richtige Auswahl der genutzten Absenkungstechniken voraus. Dabei sind insbesondere die Dimension des abzusenkenden Bereichs, die Untergrundbeschaffenheit sowie zu erfüllende umweltschutzrechtliche Regelungen zu berücksichtigen. Zur Grundwasserabsenkung kommen üblicherweise verschiedene Ausführungen und Anordnungen von Pumpbrunnen zum Einsatz. Konven

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12

Nedvěd, Jakub. "Matematický model proudění ovlivněného cirkulačními vrty." Master's thesis, 2014. http://www.nusl.cz/ntk/nusl-342658.

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In this thesis, I focused on numerical modelling of groundwater flow in the vicinity of groundwater circulation well (GCW). The thesis can be devided to two parts. In the first one, I created a simple numerical model of GCW. I used a cylindrical flow domain because of the radial symmetry of the problem. The task was to find out which parameters have the biggest influence on groundwater flow. It was found that the hydrogeological settings and hydraulic properties have more considerable effect on GW flow than the well construction parameters. Distance between the well screens is the only importa

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13

"Circulation of saline and hypersaline groundwater in carbonate mud [electronic resource] : mechanisms, rates, and an example from Florida Bay / by Thomas Charles Juster." 1995. http://purl.fcla.edu/fcla/dl/SF00000106.pdf.

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14

Žáková, Tereza. "Matematický model proudění podzemní vody v oblasti s cirkulačním vrtem." Master's thesis, 2014. http://www.nusl.cz/ntk/nusl-341371.

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In this master's thesis, a numerical model of groundwater flow in a contaminated area of Hradec Králové was created. After that, a circulation well was introduced. Two circulation well variants, which differ in the amount of pumped water, were examined. All simulations were performed with the aid of a finite element solver Feflow 5.2. The values of hydraulic head resulting from the mathematical model are in a good agreement with those obtained from the field measurement. The groundwater flow present in the area of interest exhibits south to southwest direction. After introducing the circulatio

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15

Grassa, F. "Geochemical processes governing the chemistry of groundwater hosted within the Hyblean aquifers." Thesis, 2002. http://hdl.handle.net/2122/416.

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A raingauge network made of six stations was installed in the Hyblean region. Stations were located at different altitudes (from 5 m to 986 m a.s.l.) and along two directions (E-W and SW-NE). Rainwater samples were monthly collected for stable isotope measurements. Spatial distribution of rainwater isotope composition has confirmed the wet air masses move from South-East/South-West toward North. Water balance has highlighted that the annual volume of infiltrating waters is in the range of 1-1.5 *105 m3 Km-2. 82 well waters and 12 spring waters located within the Hyblean Plateau (South-Ester

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16

Wang, Chen-Sin, and 王晨昕. "Energy Conservation Research of Circulating Groundwater System on Variable Frequency." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/64558193502516363721.

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碩士<br>國立臺灣科技大學<br>營建工程系<br>98<br>This research proposes to adopt Variable-frequency Drive controlling method with circulating groundwater cooling system on air-conditioner system in order to replace the widely used cooling towers nowadays. Practical applications were performed by experiments in this research to study the feasibility of the mentioned method. The focus herein is to well use the characteristic of low temperature of the groundwater, moreover, combine the Variable-frequency Drive controller to reduce the usage flow of groundwater. So that it can be expected and proved to save the p

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17

Chen, Cheng-Yi, and 陳政逸. "A Study on Using Circulating Groundwater as Cooling Medium for Air Conditioning System." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/74572941648807205927.

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碩士<br>國立臺灣科技大學<br>營建工程系<br>93<br>This research develops a system which uses circulating groundwater to cool down a heat exchanger of air conditioner installed in a well to replace commonly used cooling towers. The main topics studied is the relationship between the temperature of cooling water and the temperature of groundwater at the process of heat exchanging. The test results indicate that if air conditioner is running and the groundwater in the well is not circulating, the temperature of groundwater will arise rapidly. However, once the groundwater starts circulating; the temperature of gr

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18

Wu, Yi-Fan, and 吳逸凡. "Applying groundwater to circulating cooling system in the exterior walls of the buildings for energy-saving system." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/65120798615509917807.

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碩士<br>國立勤益科技大學<br>冷凍空調系<br>100<br>Taiwan is located within the temperate and subtropical climate zones. It’s especially hot during summer seasons. The top floors of buildings or rooms expose directly to sunlight, become uncomfortably hot and humid. In addition, the heat is retained by walls even after direct exposure to sunlight has ceased. In order to resolve this issue, air conditioning is generally employed to lower indoor temperatures. Not only this method is inefficient, it also leads to higher energy consumption and increase electricity costs. Recent research trends have included explora

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