Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Geophysical inversion"”.
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Incorporating prior information into geophysical inversion: from regularized inversion of thermal data to a framework using conditional variational autoencoders
Geophysical inversion provides physical property models which are essential to understanding and characterizing the subsurface. However, traditional inversion methods recover models with smooth features that do not resemble geologic structures. Incorporating prior information into inversion can …
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Physics-based and data-driven inversion of magnetotelluric data for subsurface imaging
Electromagnetic (EM) geophysical inversion is fundamentally limited by the ill-posed and non-unique nature of the inverse problem, where diffusive physics, limited depth sensitivity, and observational noise lead to broad sensitivity kernels and multiple admissible subsurface models. Conventional …
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wavelet domain inversion and joint deconvolution/interpolation of geophysical data
This thesis presents two innovations to geophysical inversion. The first provides a framework and an algorithm for combining linear deconvolution methods with geostatistical interpolation techniques. This allows for sparsely sampled data to aid in image deblurring problems, or, conversely, noisy …
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Energy allocation and transmission scheduling for wireless and space communications
This thesis presents two innovations to geophysical inversion. The first provides a framework and an algorithm for combining linear deconvolution methods with geostatistical interpolation techniques. This allows for sparsely sampled data to aid in image deblurring problems, or, conversely, noisy …
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Integrated seismic interpretation of the Larder Lake area, Southern Abitibi greenstone belt, Ontario, Canada
… integration of seismic data with complementary geophysical methods. This study aims to determine the structural architecture of the area using seismic data and other depth resolving geophysical methods using an integrated modelling approach. The integrated modelling is achieved by extracting …
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MOUNTAINHYDRO: INTEGRATING GEOLOGY, GEOPHYSICS AND HYDROGEOLOGY IN A MULTIDISCIPLINARY APPROACH
… of groundwater preferential flow paths. The geophysical pillar involves the use of high resolution DC resistivity surveys and densely spaced transient electromagnetic (EM) methods, both ground-based and airborne. Geophysical surveys play a key role in capturing the subsurface heterogeneity …
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Probabilistic Characterization of Sediments Using a Combined Geotechnical and Geophysical Approach
… measurements but lack spatial continuity, while geophysical surveys offer broad coverage but yield indirect properties that are often difficult to link quantitatively to engineering parameters such as sediment strength or erodibility. This dissertation addresses these limitations by developing …