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Dissertations / Theses on the topic 'Subsurface use'

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1

Clutter, Melissa, and Melissa Clutter. "The Use of Subsurface Temperature Fluctuations to Estimate Plant Water Use." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/621451.

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Irrigation agriculture is the largest use of water (~80%) in the United States ('Irrigation and Water Use', 2016) A combination of irrigation and precipitation infiltrates through the Earth's subsurface and represents the primary inputs to an agricultural field's groundwater system. This water propagates down from the surface, with some of it recharging the underlying groundwater storage as return flow. The difference between the amount of irrigation water applied and the return flow to the aquifer, represents the consumptive use of the system. The alterations in the quality and distribution o
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Langschwager, Eugene M. "The use of radiorespirometry for evaluation of subsurface biodegradation." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/50041.

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Current use of alcohols as neat automotive fuels or as inexpensive octane enhancers in gasoline-alcohol blends, in addition to their uses as solvents and starting materials in manufacturing, have created a concern due to the increased potential for groundwater contamination. Adsorption and water solubility are primarily responsible for separating gasoline-alcohol blend components in soils and would allow alcohols to move ahead of the remaining gasoline components (e.g., benzene). The presence of alcohols would be difficult to detect, and levels hazardous to humans or animals could be reached r
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3

Zedick, Daniel. "Improving Water Use in the Landscape Through Subsurface Drip Irrigation." The University of Arizona, 2016. http://hdl.handle.net/10150/608293.

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Sustainable Built Environments Senior Capstone Project<br>This paper examines Subsurface Drip Irrigation(SDI) as a solution to water conservation in landscape irrigation. This is a problem because of the drought that the southwestern United States is experiencing, and the amount of water that landscapes utilize and which is ultimately wasted due to inefficient practices. Subsurface drip irrigation represents a potential solution due to its high efficiency and water saving ability; however, there are some problems within it as a system. Utilizing a multiple case studies approach, this paper loo
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4

Al-Juaidyah, Jaber M. H. A. "Use of colloidal gas aphron in subsurface treatment of soil." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0015672.

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5

Copeland, Russell Dean 1963. "Hydraulic, water and energy use evaluation of subsurface trickle irrigation system." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278073.

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The hydraulics, water use, and energy use of a two year old subsurface drip irrigation system installed at the Maricopa Agricultural Center in southern Arizona were examined to evaluate the performance of typical subsurface drip irrigation systems. Although the pressure distribution was better than expected due to the effect of the looped network, the average discharge rate of the drip tape decreased by 20% as reflected by the change in the discharge coefficient from 0.45 to 0.36 over two years and emitter plugging resulted in the statistical uniformity being only 64.6%. Water use was higher t
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6

Лушпієнко, Юлія Олегівна, Юлия Олеговна Лушпиенко та Yuliia Olehivna Lushpiienko. "Адміністративно-правовий режим надрокористування в Україні". Thesis, Сумський державний університет, 2021. https://essuir.sumdu.edu.ua/handle/123456789/86404.

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Дисертацію присвячено визначенню змісту та особливостей адміністративно-правового режиму надрокористування в Україні, існуючих проблем його реалізації та формулюванню напрямків їх усунення. У науковій праці вдосконалюється розуміння понять «надра» та «надрокористування». Набули подальшого розвитку історико-правові аспекти становлення адміністративно-правового режиму надрокористування на території сучасної України, зокрема, виокремлено такі етапи: 1) прадавній період (III тис. до н. е. – IX ст.); 2) період Київської Русі та Галицько-Волинської держави (кін. IX ст. – XIII ст.); 3) період Польс
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7

Twedt, Evan Jacob. "Strategies for Optimizing Nitrogen Use in Corn with and without Subsurface Drainage." Thesis, North Dakota State University, 2011. https://hdl.handle.net/10365/28903.

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Excessive soil moisture can impact planting date, plant establishment, and N availability, resulting in reduced yields and N use efficiency. Nitrogen management practices such as use of urease and nitrification inhibitors, and split applications may be used to reduce N lost during the growing season, improving N use efficiency and crop productivity. The objective of this study was to determine whether N management practices could improve corn (Zea mays L.) productivity with or without subsurface drainage on a fine-textured clay soil in eastern North Dakota. Five field trials were conducted in
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8

Harrel, Kathryn. "Design and testing of a subsurface excess irrigation capture and re-use system." Thesis, California State University, Long Beach, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1595232.

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<p> In January 2014, the California Governor declared a drought state of emergency and directed officials to take action to prepare for future water shortages. Many urban communities in California have shown great efforts in reducing water consumption and conserving water. Meanwhile, various residential communities take pride in the natural and green environment provided to their residents and without water for irrigation, fear a decrease in aesthetic appeal. In an effort to conserve water without giving up irrigation, this thesis takes a closer look at a subsurface irrigation and collectio
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9

Nsengiyumva, Dominique. "Field evaluation of three systems for filtering polluted river water for use in subsurface irrigation." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28868.

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Three systems for filtering polluted river water for use in subsurface irrigation have been designed, operated and evaluated. One system consisted of filtering the water through filter basins covered with grass. The second system used geotextiles in filter basins. The third system consisted of flooding a section of a field. In this system, the water was filtered as it moved through the soil towards the subsurface drainage/irrigation drain pipes.<br>It was found that grass filter basins are very efficient in removing sediment from river water. Grass filter basins having drain pipes placed in tr
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10

Willmann, Matthias. "Scaling of subsurface processes in heterogeneous aquifers: from hydraulic testing to the use of memory functions." Doctoral thesis, Universitat Politècnica de Catalunya, 2008. http://hdl.handle.net/10803/32780.

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La heterogeneidad de la conductividad hidráulica es bien conocida, pudiendo cambiar varios órdenes de magnitud en poca distancia. Esto afecta nuestras observaciones de los procesos naturales. Para poder explicar la realidad normalmente nos basamos en modelos simplificados. Pero para incorporar correctamente en ellos las propiedades de los acuíferos, se debe pasar de escala local a escala de soporte y a escala de la malla del modelo numérico. Este proceso se llama Upscaling y puede comportar cambiar los parámetros de la ecuación conocida a escala local, o bien la derivación de una nueva ecuació
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11

Ampofo, Edward Akwasi. "The use of numerical groundwater model to improve effectiveness of subsurface drainage system in irrigated field." Thesis, University of Southampton, 2009. https://eprints.soton.ac.uk/146869/.

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The research demonstrates that Three-Dimensional Variable-Density Groundwater Flow models such as the SEAWAT model can be effectively used for design of subsurface drainage systems for controlling salt concentration in the root zone on salt affected irrigated land. The SEAWAT model was used to optimize subsurface drainage design to ensure that the salt concentration of the groundwater at the base of the root zone does not exceed pre determined levels instead of the conventional approach of maintaining the groundwater at a predetermined water table level. The study was carried out on a conceptu
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12

Barone, Victoria Ann. "Modeling the Impacts of Land Use Activities on the Subsurface Flow Regime of the Upper Roanoke River Watershed." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/31167.

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The goal of this study was to determine the impact of land use activities on the subsurface flow regime in the Upper Roanoke River Watershed in Virginia to determine the impacts of land use change on the subsurface flow system, and to provide a tool for future management decisions. Land use activities can impact the groundwater system in two ways. The volume of water recharging the groundwater system can be reduced due to an increase in low permeable areas. It is assumed in this investigation that the input recharge values reflect the increase of low permeability zones that may occur due to
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13

BHATTARAI, SURYA PRASAD, and s. bhattarai@cqu edu au. "THE PHYSIOLOGY OF WATER USE EFFICIENCY OF CROPS SUBJECTED TO SUBSURFACE DRIP IRRIGATION, OXYGATION AND SALINITY IN A HEAVY CLAY SOIL." Central Queensland University. Biological and Environmental Sciences, 2005. http://library-resources.cqu.edu.au./thesis/adt-QCQU/public/adt-QCQU20050903.222650.

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14

Blume, Theresa, Erwin Zehe, and Axel Bronstert. "Use of soil moisture dynamics and patterns at different spatio-temporal scales for the investigation of subsurface flow processes." Universität Potsdam, 2009. http://opus.kobv.de/ubp/volltexte/2010/4492/.

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Spatial patterns as well as temporal dynamics of soil moisture have a major influence on runoff generation. The investigation of these dynamics and patterns can thus yield valuable information on hydrological processes, especially in data scarce or previously ungauged catchments. The combination of spatially scarce but temporally high resolution soil moisture profiles with episodic and thus temporally scarce moisture profiles at additional locations provides information on spatial as well as temporal patterns of soil moisture at the hillslope transect scale. This approach is better suited to d
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15

Gomes, Jorge S. "Reservoir description of the Arab-C Dukhan carbonate reservoir for improved reservoir management and use as a subsurface analogue." Thesis, Heriot-Watt University, 2001. http://hdl.handle.net/10399/1141.

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16

Fain, Danny 1966. "Use of the self-potential method for measurement of subsurface water flow at a pump-and-treat remediation site." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/9319.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1999.<br>Includes bibliographical references (leaf 34).<br>The self-potential method (SP) of geophysical surveying has been widely used in environmental and engineering applications, primarily for rough but inexpensive assessment of subsurface flow of fluids, heat, or ions. In this project, the SP method was employed to study the activity at an environmental cleanup site at the Massachusetts Military Reservation. At the leading (down-gradient) edge of the CS-4 groundwater contamination pl
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17

Busquets, Jose Carlos. "Restoration of Displaced Cast-in-Place Concrete Slabs on Grade with the Use of the ISB-07 Subsurface Support Bracket." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3022.

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The restoration of foundations of residential and light commercial structures that have been affected by differential displacement resulting from problematic soil conditions has been an ongoing issue since early times. In Florida, the issue of structures being affected by subsidence of soils related to sinkhole activity has been a problem that has gained more interest and exposure within the last 20 years. Structures affected by sinkholes have been historically addressed by remediating the soil mechanism which caused the structure to displace and then structurally addressing the portions of th
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18

Vadher, Atish N. "Factors limiting the vertical movement and use of subsurface sediments by lotic macroinvertebrates in response to dewatering and surface drying." Thesis, Loughborough University, 2017. https://dspace.lboro.ac.uk/2134/28485.

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Climate change projections suggest increased frequency and duration of streambed drying in many regions across the globe. These predictions even apply to streams in temperate environments, which are typically characterised by perennial river flow. The subsurface sediments of streams are an important refuge for benthic invertebrates during streambed drying; this role may become more important given the predicted increased future extent and duration of stream drying. However the vertical movement of organisms into subsurface and hyporheic sediments, and factors affecting this movement, has recei
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19

Krob, Jorian C. "Determining the Suitability of Sedimentary Magnetism for Use in Interpretation of Archaeological Sites and Features." University of Akron / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=akron1586319217152757.

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20

Mukherjee, Moumita. "Instrumented permeable blankets for estimating subsurface hydraulic conductivity and confirming numerical models used for subsurface liquid injection." Diss., Connect to online resource - MSU authorized users, 2008.

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21

Kleski, Kurt W. "GIS Uses for Modeling Subsurface Conditions in Ohio Coal Mines." Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1511877505215923.

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22

Weill, Sylvain. "Modélisation des échanges surface/subsurface à l'échelle de la parcelle par une approche darcéenne multidomaine." Phd thesis, École Nationale Supérieure des Mines de Paris, 2007. http://pastel.archives-ouvertes.fr/pastel-00003411.

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Cette étude s'inscrit dans le cadre de la modélisation distribuée à base physique des interactions entre processus de surface et de subsurface. Une nouvelle approche de modélisation, dite darcéenne multidomaine , est présentée. Les équations de Richards et de l'onde diffusive sont respectivement utilisées pour décrire le processus d'infiltration et de ruissellement. L'équation de l'onde diffusive est transformée en une équation de diffusion non linéaire similaire à l'équation de Richards. L'écoulement d'eau à la surface du sol est alors assimilé à un écoulement dans un milieu poreux aux propri
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23

Cachia, Maxime. "Caractérisation des transferts d’éléments trace métalliques dans une matrice gaz/eau/roche représentative d'un stockage subsurface de gaz naturel." Thesis, Pau, 2017. http://www.theses.fr/2017PAUU3006/document.

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Le gaz naturel représente environ 20% de la consommation énergétique mondiale et cette part est attendue à la hausse dans les prochaines années en raison de la transition énergétique. Pour des raisons économiques et stratégiques, et afin de réguler les demandes d’énergie entre l’été et l’hiver, le gaz naturel est stocké temporairement dans des réservoirs souterrains, notamment des réservoirs aquifères. Les opérations d’injection et de soutirage du gaz mettent donc en contact des espèces gazeuses, liquides et solides, et rendent potentiellement possibles de nombreux phénomènes de transferts d’e
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Forbes, Margaret G. "Phosphorus Retention and Fractionation in Masonry Sand and Light Weight Expanded Shale Used as Substrate in a Subsurface Flow Wetland." Thesis, University of North Texas, 2002. https://digital.library.unt.edu/ark:/67531/metadc3183/.

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Constructed wetlands are considered an inefficient technology for long-term phosphorus (P) removal. The P retention effectiveness of subsurface wetlands can be improved by using appropriate substrates. The objectives of this study were to: (i) use sorption isotherms to estimate the P sorption capacity of the two materials, masonry sand and light weight expanded shale; (ii) describe dissolved P removal in small (2.7 m3) subsurface flow wetlands; (iii) quantify the forms of P retained by the substrates in the pilot cells; and (iv) use resulting data to assess the technical and economic feasibil
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Lavoué, François. "Inversion des formes d'ondes électromagnétiques en 2D pour le géoradar : vers une imagerie multi-paramètre à partir des données de surface." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENU050/document.

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Les premiers mètres à centaines de mètres de la proche surface terrestre sont le siège de processus naturels dont la compréhension requiert une caractérisation fine de la subsurface, via une estimation quantifiée de ses paramètres. Le géoradar est un outil de prospection indirecte à même d'ausculter les milieux naturels et d'en estimer les propriétés électriques (permittivité et conductivité). Basé sur la propagation d'ondes électromagnétiques à des fréquences allant du MHz à quelques GHz, le géoradar est utilisé à des échelles et pour des applications variées concernant la géologie, l'hydrolo
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Karmakar, Shyamal [Verfasser], Martin [Akademischer Betreuer] [Gutachter] Sauter, Iulia [Gutachter] Ghergut, and Gunter [Gutachter] Buntebarth. "Single-well tracer push-pull method development for subsurface process characterization : Early-time tracer injection-flowback test for stimulated fracture characterization, numerical simulation uses and efficiency for flow and solute transport / Shyamal Karmakar ; Gutachter: Martin Sauter, Iulia Ghergut, Gunter Buntebarth ; Betreuer: Martin Sauter." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2016. http://d-nb.info/1121302815/34.

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Yang, Chao Chung, and 楊朝仲. "Multi-Objective Planning for Conjunctive Use of Surface and Subsurface Water." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/58856678874874397173.

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博士<br>國立交通大學<br>土木工程系<br>90<br>Owing to difficulties in considering fixed cost and time-varying operating cost for conjunctive use of surface and subsurface water at the same time, optimization of water resources planning is a challenging task. Major difficulty is encountered due to the discontinuity of fixed cost in time led the objective function, including fixed cost and operating cost, not to be solved time by time. Moreover, these two objectives conflict with each other. Therefore, instead of combining the objectives using a weighting factor, this study proposes a novel multi-objective pr
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Fiorenza, Stephanie. "Use of hydrogen peroxide for subsurface remediation: Microbial responses and their implications." Thesis, 1992. http://hdl.handle.net/1911/16555.

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Bioremediation uses microorganisms to degrade chemicals of interest and can be limited by mineral nutrients and terminal electron acceptors, especially oxygen. This research investigated in situ bioremediation with hydrogen peroxide (H$\sb2$O$\sb2$) as a supplemental oxygen source, added in increasing concentration, and addressed the microbial responses to H$\sb2$O$\sb2$. The microbial responses studied were changes in microbial numbers, population structure, degradative ability, and adaptation by induction of catalase and superoxide dismutase. Several assays were developed for this work. Batc
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Chen, Li-Jhan, and 陳立展. "Use of ground penetrating radar to investigate subsurface structures beneath bituminous pavements." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/17823827922295828058.

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30

Pieters, Werner. "The use of impulse response tracer experiments in horizontal subsurface flow constructed wetland development." Thesis, 2016. http://hdl.handle.net/10539/21148.

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A research proposal submitted to the Faculty of Engineering and the Built Environment, University of the Witwatersrand, in fulfillment of the requirements for the degree of Master of Science in Engineering. Johannesburg, 2016<br>In the past three decades there has been an increased interest in constructed wetlands (CW) and their effectiveness in treating water. The hydraulic efficiency of a CW can be determined by using chemical reactor theory to develop residence time distribution (RTD) parameters such as effective volume (Veff), normalized variance (σ2) and mean residence time (τm). F
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31

Chen, Yun-Yu, and 陳韻宇. "A Study on Optimal Planning Model for Conjunctive Use of Surface and Subsurface Water." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/t6h767.

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碩士<br>國立交通大學<br>土木工程系所<br>107<br>Taiwan has rich groundwater resources. Some of the alluvial fans in Taiwan have well-developed aquifers in which the pore space together formed considerable storage space. If the storage space can be considered as groundwater reservoirs and conjunctively used with surface water reservoirs, the water allocation efficiency for a regional water resources system can be increased greatly. This study developed a stepwise optimal planning model for conjunctive-use of surface and subsurface water and applied the model to a case study of conjunctive-use system planning
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Chang, Yu-Yi, and 張有毅. "Use of Centrifuge Modeling and Distinct Element Method to Evaluate the Surface and Subsurface Deformation of Normal Faulting and Reverse Faulting." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/72094855147920672084.

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博士<br>國立中央大學<br>土木工程學系<br>102<br>A series of centrifuge model tests and PFC2D numerical simulations on the normal faulting and reverse faulting (both with the dip angle of 60°) are conducted at the acceleration conditions of 1 g, 40 g, and 80 g. The evolution of the surface deformation profile, the subsurface deformation pattern and the development of fault trace are evaluated. In addition, the shallow foundation rested on the ground surface subject to normal and reverse faulting is conducted to evaluate the Fault Rupture-Soil-Foundation-Structure Interaction (FR-SFSI) in this study. Based on
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(9780902), Surya Bhattarai. "The physiology of water use efficiency of crops subjected to subsurface drip irrigation, oxygation and salinity in a heavy clay soil." Thesis, 2005. https://figshare.com/articles/thesis/The_physiology_of_water_use_efficiency_of_crops_subjected_to_subsurface_drip_irrigation_oxygation_and_salinity_in_a_heavy_clay_soil/13416992.

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Furrow is the dominant irrigation method for agriculture throughout the world. However, due to water use inefficiencies, only about 50% of the water that reaches the field is used by the crop, the remainder at times negatively impacting the environment. This research explored the potential of subsurface drip irrigation (SDI) to raise water use efficiency (WUE) of cotton produced on a heavy clay soil, and to minimize the negative environmental impact of irrigation water. SDI cotton irrigated at the rate of 75 % daily crop evapo-transpirational demand (ETc) produced yield equivalent to, or great
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Wang, Chao-Ying, and 王超穎. "Development and Application of a Stage Wise Optimal Planning Model for Conjunctive Use of Surface and Subsurface Water - Case Study of Chou-shui River Alluvial Fan." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/w5u645.

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碩士<br>國立交通大學<br>土木工程系所<br>106<br>Zhuoshui river alluvial plain, which is located at the western Taiwan, has plenty space for groundwater storage. Conjunctive use of surface and subsurface water can increase the efficiency of water resources utilization. This study considers conjunctive use of water from reservoirs and aquifers (underground reservoirs) along with scenarios considering local pumping and injections. A stepwise optimization model is developed for managing conjunctive use of surface and undersurface water resources. This model is applied to Zhuoshui River alluvial fan and Minzhu Ba
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Huang, Roger. "Shale-Derived Dissolved Organic Matter as a Substrate for Subsurface Methanogenic Communities in the Antrim Shale, Michigan Basin, Usa." 2008. https://scholarworks.umass.edu/theses/86.

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The microbial origin of methane produced from sedimentary basins is a subject of great interest, with implications for the global cycling of carbon as well as natural gas exploration. Despite the growing body of research in sedimentary basin methanogenesis, few studies have sought to understand the subsurface microbial communities that produce methane, the metabolic pathways involved in the decomposition of ancient organic matter, or the components of ancient organic matter that are consumed. This research examined shale-derived dissolved organic matter (DOM) as a potential substrate to suppor
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Paufler, Sebastian. "Untersuchungen zur Steuerung der Mangankonzentration bei der Uferfiltration und Unterirdischen Enteisenung / Entmanganung." Doctoral thesis, 2018. https://tud.qucosa.de/id/qucosa%3A34030.

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Die Uferfiltration und die unterirdische Enteisenung / Entmanganung (UEE) sind bewährte Verfahren für die natürliche, unterirdische Voraufbereitung von Wasser. In Abhängigkeit von der Wasserbeschaffenheit und den geochemischen Eigenschaften des Grundwasserleiters können Redoxreaktionen, Sorptions- und Auflösungsprozesse oder eine ungünstige Bewirtschaftung der Brunnen bei beiden Verfahren zu erhöhten Mangankonzentrationen im Rohwasser führen. Erhöhte Mangankonzentrationen sind häufig für Verockerungsprozesse im Filterbereich der Brunnen und Ablagerungen in Pumpen und Steigleitungen verantwortl
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