Sökning: "HARMONIE-AROME"

Visar resultat 6 - 9 av 9 uppsatser innehållade ordet HARMONIE-AROME.

  1. 6. 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

  3. 7. The Vertical Route Forecast : an Evaluation of a New Flight Path Based Weather Forecast Product with HARMONIE-AROME High Resolution Forecasts over Scandinavia

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

    Författare :Ingela Leffler; [2017]
    Nyckelord :Vertical route forecast; Model evaluation; HARMONIE-AROME; GFS; Aviation weather; Vertikal ruttprognos; Modellutvärdering; HARMONIE-AROME; GFS; Flygväder;

    Sammanfattning : As a complement to existing weather forecast products for aviation, a prototype of a new product is presented and evaluated. It shows the atmosphere in a vertical cross section along the intended route. LÄS MER

  4. 8. Sensitivity studies on difficult cloud and fog situations for weather model

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

    Författare :Axel Stigborg; [2017]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : Fog and clouds are difficult to predict for meteorologist today. Models have a tendency to show either too much or too little clouds or fog, which can be a problem for people and industries that depend on the weather conditions. Improvements are being done, but errors still occur. LÄS MER

  5. 9. Cloud Overlap Assumption and Cloud Cover Validation for HARMONIE-AROME

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

    Författare :Freja Söderberg; [2016]
    Nyckelord :Cloud overlap assumption; HARMONIE-AROME; total cloud cover; SYNOP observations; MSG-data; Molnöverlappsantagande; HARMONIE-AROME; total molnmängd; SYNOP-observationer; MSG-data;

    Sammanfattning : One major challenge in representing the state of the atmosphere through weather forecast models, is the parametrization of sub-grid clouds. At every vertical column of grid cells within a weather forecast model, the fractional cloud cover is assumed to overlap according to a prescribed Cloud Overlap Assumption (COA). LÄS MER