Sökning: "Meteorology"

Visar resultat 21 - 25 av 68 uppsatser innehållade ordet Meteorology.

  1. 21. Attempts at using Bayesian neural networksfor uncertainty assessments of temperature forecasts

    Kandidat-uppsats, Lunds universitet/Förbränningsfysik; Lunds universitet/Fysiska institutionen

    Författare :Joel Lundqvist; [2019]
    Nyckelord :Meteorology; Artificial neural networks; Bayesian neural networks; Forecast uncertainty; Physics and Astronomy;

    Sammanfattning : This thesis describes attempts at estimating the uncertainty of the 2-metre temperature forecast error from a probabilistic point of view, utilizing Bayesian neural networks. Bayesian neural networks are a type of machine-learning algorithms used to find patterns in data and make probabilistic predictions. LÄS MER

  3. 22. Climate Change and Precipitation Variability Influence on the Greenland Ice Sheet

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :Jennie Olsson; [2018]
    Nyckelord :Physics; Ice Sheet; Surface Mass Balance; SMB; Representative Concentration Pathways; RCP; Climate Change; Greenland; Precipitation; Precipitation Variability; Glaciers; Glacier; Meteorology; Greenhouse Effect; Greenhouse Gas; Future Climate; Climate; Physics and Astronomy;

    Sammanfattning : Climate changes have a large impact on precipitation patterns and precipitation variability change. With this in mind, precipitation over Greenland is studied. This is done for present day precipitation model data from 1991-2010 compared to future model simulations of precipitation for 2081-2100. LÄS MER

  4. 23. CARBONDIOXIDE FLUXES FROM A CONTROLLED BOREAL RIVER

    Master-uppsats, Mittuniversitetet/Avdelningen för ekoteknik och hållbart byggande

    Författare :FRANK ARTHUR; [2018]
    Nyckelord :Carbon dioxide fluxes; Gas transfer Velocity; Turbulence; Eddy covariance; Stream flow; Wind speed; Global Carbon cycle; Latent and sensible heat fluxes.;

    Sammanfattning : River, lakes and   streams account for more carbon dioxide emissions than all other freshwater   reservoirs together. However, there is still lack of knowledge of the   physical processes that control the efficiency of the air-water exchange of   CO2 in these aquatic systems. LÄS MER

  5. 24. Skyfall som orsak till extrem jorderosion

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Jonas Bredelius; [2018]
    Nyckelord :;

    Sammanfattning : Heavy rain may cause significant erosion and damage to natural and anthropogenic landforms. The purpose of this paper is to describe the most extensive events of soil erosion from heavy rain that are recorded in Sweden and how the prerequisites of this weather phenomena is affected by different future climate scenarios. LÄS MER

  7. 25. Analysis and comparison of weather models for solar irradiance forecasts in Sweden

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :Linus Falk; [2018]
    Nyckelord :meteorology; weather models; ensemble forecasts; solar irradiance; Physics and Astronomy;

    Sammanfattning : Solar radiation is affected in a variety of different ways through the atmosphere and on its way down to the Earth’s surface. Clouds are the main factor in this attenuation of solar radiation, but aerosols, ozone and other different gases have a significant impact too. Understanding these processes is fundamental to solar forecasting. LÄS MER