Search for dissertations about: "Geophysics"

Showing result 11 - 15 of 207 swedish dissertations containing the word Geophysics.

  2. 11. High-Resolution Seismics Methods Applied to Till Covered Hard Rock Environments

    Author : Björn Bergman; Christopher Juhlin; Laust Börsting Pedersen; Ari Tryggvason; Ramon Carbonell; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Geophysics; High-Resolution; Reflection Seismics; Tomography; Nuclear waste repository; Bedrock; Sediments; Geofysik; Geophysics; Geofysik;

    Abstract : Reflection seismic and seismic tomography methods can be used to image the upper kilometer of hard bedrock and the loose unconsolidated sediments covering it. Developments of these two methods and their application, as well as identifying issues concerning their usage, are the main focus of the thesis. READ MORE

  4. 12. Earthquake Sources and Hazard in northern Central America

    Author : Diego José Cáceres Calix; Ota Kulhánek; Vladimir Schenk; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Geophysics; Northern Central America; Probabilistic Seismic Hazard; Body waveform modeling; Seismic Active Deformation; Earthquake Triggering; Geofysik; Geophysics; Geofysik;

    Abstract : Northern Central America is a tectonically complex zone defined by its borders with Cocos and North America plates. The Middle America subduction zone and the strike-slip motion along the North America-Caribbean plate boundary, in that order, control most of its deformation. READ MORE

  5. 13. Multiple representation databases for topographic information

    Author : Mats Dunkars; Hand Hauska; Chris Jones; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Geophysics; multiple representation databases; multiple representation; cartographic generalisation; reverse engineering; matching of geographic information; Geofysik; Geophysics; Geofysik;

    Abstract : .... READ MORE

  6. 14. Seismic Studies of Paleozoic Orogens in SW Iberia and the Middle Urals

    Author : Artem Kashubin; Christopher Juhlin; Lars Nielsen; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Reflection seismics; Traveltime tomography; Uralian orogeny; Variscan orogeny; Crustal structure; Geophysics; Geofysik;

    Abstract : Controlled source seismic methods were employed in this study to investigate the reflectivity and velocity structure of two Hercynian orogens – the Uralides and Variscides. Conventional common depth point (CDP) sections from five reflection seismic campaigns and a velocity model obtained from tomographic inversion of wide-angle observations were the main datasets studied from the Middle Urals. READ MORE

  7. 15. Physics of Aftershocks in the South Iceland Seismic Zone : Insights into the earthquake process from statistics and numerical modelling of aftershock sequences

    Author : Mattias Lindman; Roland Roberts; Björn Lund; David Marsan; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earthquake processes; Aftershocks; Physics of aftershocks; Omori law; Postseismic processes; Pore pressure diffusion; Poroelasticity; Statistical seismology; Self-organised criticality; Interevent time distributions; Waiting time distributions; Geophysics; Geofysik;

    Abstract : In seismology, an important goal is to attain a better understanding of the earthquake process. In this study of the physics of aftershock generation, I couple statistical analysis with modelling of physical processes in the postseismic period. READ MORE