Searched for: mods_note_programme_s%3A%22Applied%255C+Geophysics%255C+%257C%255C+IDEA%255C+League%22
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Fehnker, Hauke (author)The North German basin holds high potential for geothermal lithium exploration. Yet, so far, the assessment of reservoirs concentrates on locations in the Upper Rhine Graben. This thesis gives an example for the evaluation of a potential geothermal lithium reservoir of the Middle Buntsandstein at the location Horstberg in Lower Saxony. The...master thesis 2022
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Carpenter, Cara (author)Stylolites are rough dissolution surfaces ubiquitous in sedimentary rocks, which locally exercise a strong influence on porosity and cementation, resulting in a change in strengths and permeabilities of the host rock. Thus, these structures are important in many applications in geosciences. Yet, little research has been done to test the effect...master thesis 2022
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Mossel, Sil (author)Failure of subsea wind turbine cables are the main cause for wind farm downtimes. Furthermore, 80% of insurance payouts to wind farms come from cable repairs and maintenance. Cable tracking is part of the wind farm cables maintenance scheme. Surveys are required for localisation and determining the depth of burial of the cables. Conventional...master thesis 2022
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Ganther, Tobias (author)Landmines and Improvised Explosive Devices (IEDs) are among the most dangerous weapons found in (former) conflict areas. Many of them have only minimal or even no metal built in making it difficult to detect such devices via conventional metal detectors. Thus, alternative methods such as Ground Penetrating Radar (GPR) are deployed for this...master thesis 2021
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Grimm, Julius (author)In the summer of 2020, ETH researchers installed a 9 km long fiber-optic cable on the Rhonegletscher (Switzerland), covering the whole glacier extent from accumulation to ablation zone.<br/>The fiber was then interrogated with a DAS system, turning it into a distributed seismic antenna. The DAS system recorded continuously for one month on more...master thesis 2021
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Revelo Obando, Eddy Darío (author)The analysis of microseismic measurements acquired during borehole acquisition surveys is essential for a thorough understanding of the source mechanisms in hydraulic fracturing operations. Due to the injection of high-pressure fluids, induced fractures can produce seismic events of low magnitude that can be recorded and subsequently analyzed to...master thesis 2021
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Kiers, Tjeerd (author)Over the last decade, Distributed Acoustic Sensing (DAS) has gained increased attention as a cost-effective and practical ground motion monitoring technique, due to the unprecedented temporal and spatial sampling possibilities. Considering these inherent advantages, DAS-collected strain rate measurements can be beneficial as...master thesis 2021
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Verwijs, Roos (author)As a result of the gas extraction in Groningen (the Netherlands) the amount of earthquakes have increased over the past decades. Understanding the induced seismicity in the Zeerijp area is important for the population living in this relatively densely populated region, but also essential to the Dutch governement and the operator of the field;...master thesis 2021
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Janjua, Mahad Nadeem Janjua (author)The recent discovery of the Zama field in offshore Sureste Basin in the southern Gulf of Mexico has piqued interest in the Mexican petroleum industry regarding the hydrocarbon potential within the region. In this study, a deposition-only thermal model was developed in an area of interest (AOI) in this region. Using structural input obtained from...master thesis 2021
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Holsten, Henry (author)In the arctic region many coastal areas exhibit rapid erosion, with coastal retreat or erosion rates of 10 meters per year (m/yr.) or higher in places. This poses a threat primarily to all manner of infrastructure built directly on and near the coastline. With climate change the coastal erosion is expected to increase. This effect is expected to...master thesis 2021
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Growe, Kevin (author)In the end of November 2018 the InSight mission landed on the Martian surface deploying a six axis broadband and short period seismometer, in order record marsquakes and ambient noise, which can be used to constrain the deeper interior structures of the planet. In this study we process the three components of the broad band seismometer and apply...master thesis 2021
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Kiszkurno, Kuba (author)Landslides pose a risks to the communities settled in their vicinity. They pose a threat to human lives and significant economical damage to the affected communities. As the scientific community agrees that the climate change will further increase the risks associated with landslides, it is important to develop a reliable, cost effective and...master thesis 2021
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Morandini, Ludovic (author)Measuring temperature variations of the deep ocean is necessary to evaluate the heat flux between the atmosphere and the hydrosphere and thus calibrate climate change models. In the last two decades a passive alternative to profiling oceanographic floats has emerged: hydroacoustic thermometry. This method consists of using the oceanic ambient...master thesis 2020
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Rivera Herrera, Omar (author)Wave-Equation-Based Amplitude Vs Offset (WEB-AVO ) inversion solves the full elastic wave equation both for properties and for the total wavefield. It is a non-linear inversion technique that accounts for multiple scattering and mode conversions inside the target interval. When prior geological information interpreted from well logs is...master thesis 2020
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Van Ballaer, Alexander (author)Geophysical monitoring is a popular tool in aquifer characterization and groundwater flow. To address this objective at groundwater extraction site ‘t Klooster, an ERT dataset was analyzed to identify groundwater flow patterns resulting from the injection of warm oxygenated water. Using a petrophysical model, changes in resistivity were...master thesis 2020
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Tatar, Hamza (author)Clay has been used for many hundreds of years in building dikes. Their physical properties and thickness are essential for a dike to maintain its function. For the last fifteen years electromagnetic induction instruments (EMI) have been playing a growing role in mapping electromagnetic soil properties. Layered models with sharp boundaries...master thesis 2020
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Carrizo Mascarell, Maria (author)A key practice in the development of unconventional hydrocarbon resources is to monitor hydraulic fracturing operations and analyze in detail the induced microseismicity, for understanding the extent of the volume affected by the fractures. Even though microseismic data are one of the few geophysical measurements that can be used for this...master thesis 2020
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Naranjo Hernandez, David (author)In 2017 the National Power Company in Iceland, Landsvirkjun, started the operation of a geother- mal power plant in Theistareykir (Northeastern Iceland). The plant’s operation requires extraction, circulation, and injection of the geothermal fluids to produce energy. These processes depend on the existing fracture network of the reservoir....master thesis 2020
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Gierens, Lena (author)During their service live reinforced and prestressed concrete structures experience deterioration. Therefore, to effectively assure the safety and durability of the compounds, non destructive testing methods, such as Ground Penetrating Radar, employed at high frequencies, provide a rapid assessment of the geometry of the compound. Although...master thesis 2020
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Reus, Rens (author)Array processing of infrasound data uses the coherency between sensors to calculate directions of incoming waves. The Cabauw Infrasound Array (CIA) provides unique opportunities for infrasound processing. Because unlike most infrasound arrays, CIA has sensors with height differences. Specifically sensors distributed on a 200m tall tower. But the...master thesis 2020
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