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Visar resultat 1 - 5 av 111 avhandlingar som matchar ovanstående sökkriterier.

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

    Författare :Lebing Gong; Sven Halldin; C.-Y. Xu; Allan Rodhe; Thorsten Wagener; Uppsala universitet; []
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

  3. 2. Dynamics of nutrient mass transport : A river basin evaluation

    Författare :Gunnar Karlsson; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Motala ström; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : Human settlements and activities can dramatically change and accelerate the rate of eutrophication in a river basin. An undesirable increase in the input of nutrients, e.g. phosphorus and nitrogen, to a surface water causes adverse water quality conditions. LÄS MER

  4. 3. Large-scale hydrologic modeling in the Baltic basin

    Författare :Phil L. Graham; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  5. 4. Makt uttryckt i jord och sten : Stora högar och maktstrukturer i Mälardalen under järnåldern

    Författare :Peter Bratt; Bo Petré; Anders Andrén; Per Ramqvist; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Iron Age; burials; large mounds; monuments; power structures; Mälaren basin; Archaeology; Arkeologi; arkeologi; Archaeology;

    Sammanfattning : This thesis focuses on power structures in the Mälaren basin during the Iron Age, and how these structures change over time. In the viewpoint of the author, constructing large mounds was an important way for the elite in the Mälaren basin to distinguish themselves from other groups in the region during the relevant period. LÄS MER

  7. 5. Arsenic in Alluvial Aquifers in the Meghna Basin, Southeastern Bangladesh : Hydrogeological and Geochemical Characterisation

    Författare :Md. Aziz Hasan; Prosun Bhattacharya; William Burgess; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Alluvial aquifer; groundwater; arsenic mobilisation; geology; Meghna basin; Bangladesh; Water engineering; Vattenteknik;

    Sammanfattning :  Elevated levels of arsenic (As) in Bangladesh groundwater has emerged as a massive calamity exposing a large population to the risk of As toxicity from drinking water sources and agricultural products. Holocene alluvial aquifers in the delta- and flood-plains of the Ganges-Brahmaputra- Meghna (GBM) river systems are severely affected by high levels of As in groundwater. LÄS MER