Search for dissertations about: "Hydrology"

Showing result 11 - 15 of 257 swedish dissertations containing the word Hydrology.

  1. 11. Statistical Downscaling of Precipitation from Large-scale Atmospheric Circulation Comparison of Methods and Climate Regions

    Author : Fredrik Wetterhall; Sven Halldin; Chong-Yu Xu; Lars-Christer Lundin; Deliang Chen; Hans von Storch; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Hydrology; Statistical; Downscaling; Precipitation; Large-scale circulation; PCA; TWS; Weather pattern; Regression; Weather generator; Hydrologi; NATURAL SCIENCES Earth sciences Atmosphere and hydrosphere sciences Hydrology; NATURVETENSKAP Geovetenskap Atmosfärs- och hydrosfärsvetenskap Hydrologi;

    Abstract : A global climate change may have large impacts on water resources on regional and global scales. General circulation models (GCMs) are the most used tools to evaluate climate-change scenarios on a global scale. They are, however, insufficiently describing the effects at the local scale. READ MORE

  2. 12. Upscaling of Flow, Transport, and Stress-effects in Fractured Rock

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Johan Öhman; Auli Niemi; Ove Stephansson; Robert W Zimmerman; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Hydrology; Upscaling; fractured media; flow; solute transport; thermo-hydro-mechanical processes; hybrid approach; continuum approximation; discrete fracture network; stochastic continuum; Hydrologi; NATURAL SCIENCES Earth sciences Atmosphere and hydrosphere sciences Hydrology; NATURVETENSKAP Geovetenskap Atmosfärs- och hydrosfärsvetenskap Hydrologi;

    Abstract : One of many applications of geohydraulic modelling is assessing the suitability of a site to host a nuclear waste repository. This modelling task is complicated by scale-dependent heterogeneity and coupled thermo-hydro-mechanical (THM) processes. READ MORE

  3. 13. Linking water and permafrost dynamics

    University dissertation from Stockholm : Department of Physical Geography, Stockholm University

    Author : Ylva Sjöberg; Steve Lyon; Andrew Frampton; Britta Sannel; Georgia Destouni; Michelle Walvoord; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; permafrost; hydrology; arctic; modeling; streamflow; geophysical measurements; ground thermal dynamics; groundwater; naturgeografi; Physical Geography;

    Abstract : The extent and dynamics of permafrost are tightly linked to the distribution and movement of water in arctic landscapes. As the Arctic warms more rapidly than the global average, profound changes are expected in both permafrost and hydrology; however, much is still not known about the interactions between these two systems. READ MORE

  4. 14. Multiphase Contamination in Rock Fractures Fluid Displacement and Interphase Mass Transfer

    University dissertation from Stockholm : Department of Physical Geography, Stockholm University

    Author : Zhibing Yang; Auli Niemi; Fritjof Fagerlund; Tissa Illangasekare; Insa Neuweiler; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; multiphase flow; dissolution; mass transfer; invasion percolation; immiscible displacement; fractured media; groundwater contamination; non-aqueous phase liquid; curvature; Hydrology; Hydrologi;

    Abstract : Multiphase flow and transport in fractured rock is of importance to many practical and engineering applications. In the field of groundwater hydrology an issue of significant environmental concern is the release of dense non-aqueous phase liquids (DNAPLs) which can cause long-term groundwater contamination in fractured aquifers. READ MORE

  5. 15. Design flood estimation under uncertainty

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Kenechukwu Okoli; Giuliano Di Baldassarre; András Bárdossy; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Dimensionerande flöden; osäkerheter; avrinningsmodellering; frekvens analys.; Dimensionerande flöden; osäkerheter; avrinningsmodellering; frekvens analys.; Design flood; uncertainty; rainfall-runoff; frequency analysis.; Hydrology; Hydrologi;

    Abstract : Att bestämma dimensionerande flöden, d.v.s. sannolikheten för att vat-tenföringen i ett vattendrag överskrider ett givet värde, är ett allmänt hydrologiskt problem som exempelvis används för att utvärdera över-svämningsrisker i vattendrag samt för att dimensionera hydrauliska kon-struktioner. READ MORE