Sökning: "Lars Westerberg"

Visar resultat 6 - 10 av 23 avhandlingar innehållade orden Lars Westerberg.

  1. 6. Mass Movements in East African Highlands : Processes, Effects and Scar Recovery

    Författare :Lars-Ove Westerberg; Ana Luiza Coelho Netto; Stockholms universitet; []
    Nyckelord :Geography; Physical Geography; geografi med naturgeografisk inriktning;

    Sammanfattning : .... LÄS MER

  3. 7. 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

  4. 8. Hydrodynamic Modelling of Wave Power using Electrical Equivalent Circuit Theory

    Författare :Ling Hai; Mats Leijon; Rafael Waters; Lars-Göran Westerberg; Uppsala universitet; []
    Nyckelord :wave energy; hydrodynamic modelling; electric circuit; force and power analysis;

    Sammanfattning : Ocean wave energy can be harnessed and converted into electric energy nowadays. This provides a possibility for populations that live on islands or along coastlines to utilize the renewable and safe power produced by ocean waves. LÄS MER

  5. 9. Studies of Heavy Ion Induced Desorption in the Energy Range 5-100 MeV/u

    Författare :Emma Hedlund; Lars Westerberg; Oleg Malyshev; Manfred Leisch; Uppsala universitet; []
    Nyckelord :Physics; Heavy Ion Induced Desorption; Ultra High Vacuum; NEG Coating; Heavy Ion Accelerators; Test Particle Monte-Carlo; Gas Flow; Throughput; Laser Refractometry; Metrology; Fysik;

    Sammanfattning : During operation of heavy ion accelerators a significant pressure rise has been observed when the intensity of the high energy beam was increased. The cause for this pressure rise is ion induced desorption, which is the result when beam ions collide with residual gas molecules in the accelerator, whereby they undergo charge exchange. LÄS MER

  7. 10. Linking lake variability, climate, and human activity in Basotu, Tanzania

    Författare :Lindsey Higgins; Lars-Ove Westerberg; Jan Risberg; Sarah Davies; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Tanzania; crater lake; climate change; land-use change; water resources; environmental variability; diatoms; paleolimnology; chronology; Physical Geography; naturgeografi;

    Sammanfattning : Paleoenvironmental investigations establish important baseline knowledge of the natural variability of lake systems, to better understand human impacts on the landscape, and the effects of climate change on water resources. By combining long-term environmental history with investigations into modern land use patterns and climatological events, a wider perspective can be reached that has practical applications in water governance. LÄS MER