Search for dissertations about: "hydrology river"

Showing result 1 - 5 of 55 swedish dissertations containing the words hydrology river.

  2. 1. Hydrogeochemical effects of hydropower regulation on river-aquifer continuum in boreal rivers

    Author : Dmytro Siergieiev; Hjalmar Laudon; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Geochemistry; hyporheic zone; hydrology; riparian zone; Element transport; Lule River; Kalix RIver; Northern Sweden; Earth sciences; Applied Geology; Tillämpad geologi;

    Abstract : Hydropower infrastructure affects many large rivers worldwide, threatening riverine and coastal ecosystems by fragmenting flow, disturbing landscapes and water retention and altering sedimentation and primary production. This thesis investigated major impacts of hydropower regulation on hydrological and geochemical processes in large boreal rivers. READ MORE

  4. 2. Hydrological modeling as a tool for sustainable water resources management: a case study of the Awash River Basin

    Author : Selome M. Tessema; Berit Balfors; Ulla Mörtberg; Shimelis Gebriye Setegn; Steve W. Lyon; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Hydrological characteristics; Distributed hydrological modeling; Rainfall-runoff correlation; Streamflow prediction; Sustainable water management; Awash River Basin; Hydrology; Hydrologi;

    Abstract : The growing pressure on the world‘s fresh water resources is enforced by population growth that leads to conflicts between demands for different purposes. A main concern on water use is the conflict between the environment and other purposes like hydropower, irrigation for agriculture and domestic and industry water supply, where total flows are diverted without releasing water for ecological conservation. READ MORE

  5. 3. Large-scale Runoff Generation and Routing : Efficient Parameterisation using High-resolution Topography and Hydrography

    Author : Lebing Gong; Sven Halldin; C.-Y. Xu; Allan Rodhe; Thorsten Wagener; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Parameterisation; runoff generation; routing; WASMOD-M; hydrography; data uncertainty; topographic index; scale; river network; response function; HydroSHEDS; HYDRO1k; Dongjiang basin; Parametrisering; avrinningsbildning; flödessvarstid; WASMOD-M; hydrografi; topografiskt index; dataosäkerhet; skala; flödesnät; svarstidssfunktion; HYDRO1k; HydroSHEDS; Dongjiang; Hydrology; Hydrologi; Hydrology; Hydrologi;

    Abstract : Water has always had a controlling influence on the earth’s evolution. Understanding and modelling the large-scale hydrological cycle is important for climate prediction and water-resources studies. READ MORE

  6. 4. Hydrology of riparian wetlands : a methodology study in carbo wetlands, Uruguay

    Author : Alejandro Arcelus; KTH; []
    Keywords : Large basin wetlands; Hydrological modelling; Hydraulic modelling; Runoff; Wetland classification; Uruguay; Cebollati river;

    Abstract : .... READ MORE

  7. 5. Ecohydrologic impacts of dams : A global assessment

    Author : Catherine Reidy Liermann; Christer Nilsson; Angela Arthington; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; dam; reservoir; river regulation; flow alteration; fragmentation; freshwater biodiversity; Hydrology; Hydrologi;

    Abstract : This dissertation aims to improve our understanding of how dams and reservoirs impact freshwater systems worldwide. The following questions were addressed specifically: 1) what are the spatial patterns and magnitudes of flow regulation and channel fragmentation by dams globally; 2) how are dam impacts distributed biogeographically, and which are the biogeographic regions and taxa most threatened by dam impacts; and 3) how can climate change and dams be expected to interact in basins, and what management actions would mitigate adverse interactions? Results show that the majority of the world’s large river systems are fragmented and have their flow altered by dams. READ MORE