Sökning: "bias correction"

Visar resultat 1 - 5 av 28 uppsatser innehållade orden bias correction.

  1. 1. The Role of Uni- and Multivariate Bias Adjustment Methods for Future Hydrological Projections and Subsequent Decision-Making

    Master-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Anna Merle Liebenehm-Axmann; [2024]
    Nyckelord :Bias adjustment methods; future hydrological climate projections; statistical analysis; future streamflow analysis; biasjusteringsmetoder; framtida hydrologiska projektioner; statistisk analys; framtida vattenförings analys;

    Sammanfattning : Climate models are essential for generating future climate projections. However, due to simplifications, the models can produce systematic differences between output and reality, which is referred to as model bias. Bias adjustment methods aim to reduce this error, which is important for making future projections more reliable. LÄS MER

  2. 2. Evaluation of the ERA5-Land dataset for estimation of soil moisture in the permafrost region

    Master-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Alberta van Gent; [2023]
    Nyckelord :Soil moisture; ERA5-Land; International Soil Moisture Network ISMN ; permafrost region;

    Sammanfattning : The permafrost region covers a vast area of land surface on the northern hemisphere,storing large amounts of carbon. Unfortunately, climate warming leads to permafrostthaw altering the hydrothermal state of permafrost soils. Due to the remoteness of thepermafrost region, access to field measurements is restricted. LÄS MER

  3. 3. Deep Neural Networks for Noise Reduction and Bias Removal in MR Diffusion Signal

    Master-uppsats,

    Författare :Beqir Berisha; [2022-03-22]
    Nyckelord :Medical physics; Deep Neural network; Prostate cancer; noise; Diffusion-weighted imaging; Rician bias correction;

    Sammanfattning : The purpose of this study is to assess the potential of deep neural networks, trained by unsupervised learning, for diffusion weighted imaging (DWI) data modeling and denoising. DWI data were modeled by a biexponential model and Rician bias was corrected for. LÄS MER

  4. 4. Carbon dioxide, renewable energy and economic growth : A Swedish non-EKC case study

    Master-uppsats, Södertörns högskola/Nationalekonomi

    Författare :Josephine Andersson; Kristina Everstova; [2022]
    Nyckelord :Economic growth; Environmental Kuznets Curve; Granger Approach; VECM; Sweden; Renewable energy consumption;

    Sammanfattning : The purpose of this master’s thesis is to investigate the relationship between renewable and non-renewable energy consumption, economic growth and carbon dioxide emissions per capita in Sweden in the period of 1970-2018. As indicators, the economic indicator will be represented by the per capita gross domestic product, GDP, as the environmental indicator this study will use carbon dioxide emissions per capita, CO2, and the energy use per capita will represent the energy consumption variable. LÄS MER

  5. 5. The Metallicity Structure of the Milky Way Halo II : Characterising the distant halo substructure

    Master-uppsats, Uppsala universitet/Observationell astrofysik

    Författare :Amanda Byström; [2022]
    Nyckelord :Milky Way; Galactic archaeology; halo; photometric metallicities; stellar catalogue; Gaia-Enceladus-Sausage; Sagittarius; Pristine survey; metallicity; Gaia mission;

    Sammanfattning : The Milky Way galaxy, like all spiral galaxies, is surrounded by a roughly spherical distribution of stars called the halo. The halo was largely formed when the galaxy merged with smaller galaxies. LÄS MER