Sökning: "River basin management"

Visar resultat 26 - 30 av 32 avhandlingar innehållade orden River basin management.

  1. 26. Data preparation, hydrodynamic and contaminant transport shallow-water simulations of Lake Victoria

    Författare :Seema Paul; Vladimir Cvetkovic; Jesper Oppelstrup; Roger Thunvik; Felix Mtalo; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lake bathymetry model; Steady-state analysis; Numerical model validation; Lake water balance; Correlation and seasonal variations; Solute transport; Vattendjupskarta; Validering av numerisk modell; Vattenbalans; Korrelationer och säsongs-variation; Transport av lösliga ämnen; Mark- och vattenteknik; Land and Water Resources Engineering;

    Sammanfattning : This study explores shallow lake numerical hydrodynamic processes that support model development and validation, extreme events and effects of water circulation in Lake Victoria. Lake Victoria is the second largest freshwater lake in the world, and the largest in East Africa. LÄS MER

  3. 27. Hydrological spreading of metal pollution and wetlands as nature-based solutions

    Författare :Josefin Thorslund; Jerker Jarsjö; Mario Schirmer; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical Geography; naturgeografi;

    Sammanfattning : The quality of the Earth’s water resources have deteriorated due to human impacts. A key scientific challenge is to understand, quantify and predict the water-borne spreading of pollutants at relevant scales for freshwater management and water quality restoration programs. LÄS MER

  4. 28. Observational Uncertainties in Water-Resources Modelling in Central America : Methods for Uncertainty Estimation and Model Evaluation

    Författare :Ida Westerberg; Sven Halldin; Jan Seibert; Lars-Christer Lundin; Chong-Yu Xu; Deliang Chen; Alberto Montanari; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Central America; Discharge; Flow-duration curve; Fuzzy regression; GLUE; Model evaluation; Non-stationarity; Observational uncertainty; Precipitation; Quality control; Rating curve; Regionalisation; Uncertainty estimation; Ungauged basins; Water resources; Avbördningskurva; Centralamerika; GLUE; icke-stationaritet; kvalitetskontroll; modellutvärdering; nederbörd; observationsosäkerheter; avrinningsområden utan vattenfö-ringsdata; oskarp regression; osäkerhetsuppskattning; regionalisering; varaktighetskurva; vattenföring; vattenresurser; Hydrology; Hydrologi; Hydrology; Hydrologi;

    Sammanfattning : Knowledge about spatial and temporal variability of hydrological processes is central for sustainable water-resources management, and such knowledge is created from observational data. Hydrologic models are necessary for prediction for time periods and areas lacking data, but are affected by observational uncertainties. LÄS MER

  5. 29. Images of a Forest People : Punan Malinau – Identity, Sociality, and Encapsulation in Borneo

    Författare :Lars Kaskija; Jan Ovesen; Victor King; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Punan; Borneo; Indonesia; hunter-gatherer; foraging ethos; encapsulation; sociality; identity; indigenous; conservation; variability; Kulturantropologi; Cultural Anthropology;

    Sammanfattning : This is a study of groups of forest foragers and horticulturalists in the Malinau River basin in northeast Borneo. These groups are known to themselves and others as Punan, or more specifically – in order to distinguish them from other groups of Punan (or Penan) living in other parts of Borneo – as Punan Malinau. LÄS MER

  7. 30. The cost of free water : Water resources allocation and use in the Curu Valley, Ceará, northeast Brazil

    Författare :Karin Kemper; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : Despite enormous investments in water storage infrastructure over past decades, the Curu Valley in the semi-arid state of Ceara, Northeast Brazil, is subject to increasing water stress. This study explains the current situation in the valley and explores institutional alternatives for the achievement of more efficient water resources allocation and use. LÄS MER