Sökning: "geostrophic wind"
Visar resultat 1 - 5 av 16 uppsatser innehållade orden geostrophic wind.
1. Climate driven variability of wind energy over Europe
Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknikSammanfattning : In the following report, two methods of wind downscalling are applied to reanalysed 10-m wind speed data from the ERA5 reanalysis of ECMWF, in order to derive wind speed data from 01/01/1979 till 31/12/2019 at the location of onshore wind farms from the ”World Wind Farm Database”. Being unable to use complex downscalling methods such as Generalisation (WAsP method- ology) nor Kriging interpolation, the study has been restricted to simple downscalling methods. LÄS MER
2. Analysis of Observed Discrepancies in Precipitation Measurements in the Complex Terrain of East-Iceland
Master-uppsats, Uppsala universitet/Luft-, vatten- och landskapsläraSammanfattning : Spatial distribution of precipitation in complex terrain can be very uneven and there are many factors to consider when studying it. The goal of this study was such a problem; to analyse the difference in observed annual precipitation in the complex terrain of Seyðisfjörður, a fjord in East-Iceland. The study was carried out in three parts. LÄS MER
3. Differences and Similarities between Extratropical Cyclones during Summer and Winter
Kandidat-uppsats, Lunds universitet/Förbränningsfysik; Lunds universitet/Fysiska institutionenSammanfattning : Extratropical cyclones (ETC) are synoptic scale low pressure systems, which have a large impact on the weather in the mid latitudes. These low pressure systems usually develop during several days and are connected to fronts. Thus, they can bring cloudiness, rain and even severe weather including strong winds. LÄS MER
4. Stormar i Sydsverige
Kandidat-uppsats, Lunds universitet/Fysiska institutionenSammanfattning : Many people believe that there are more windstorms today than before. In order to find out, it requires knowing what defines a windstorm: the average wind speed must exceed 24,4 m/s to be classed as a windstorm. The average wind speed is measured for a 10 minute period. LÄS MER
5. Uppskattning av vindklimat – Implementering och utvärdering av en metod för normalårskorrektion
Kandidat-uppsats, Uppsala universitet/Luft-, vatten- och landskapsläraSammanfattning : The expected technical lifetime for a wind turbine is 20-25 years (Wizelius, 2007). In the process of planning a wind farm on a site an estimation of the average wind speed and the energy yield is required from the site. LÄS MER