Sökning: "Polarvirvel"

Hittade 2 uppsatser innehållade ordet Polarvirvel.

1. 1. Large-Scale Atmospheric Drivers of Extreme Temperature Anomalies During Springtime in the Arctic

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

   Författare :Linnea Barreng; [2022]
   Nyckelord :Meteorology; Temperature extremes; Arctic; Jet stream; Rossby waves; Spring; Meteorologi; Arktis; Extremväder; Jetström; Rossbyvågor; Vår;

   Sammanfattning : In this project warm extreme temperature events in the Arctic region during the spring months March, April and May were identified and analysed. In the analysis daily average NCEP reanalysis data from NOAA/OAR/ESRL PSL format was used. LÄS MER

3. 2. Quasi-Biennial Oscillation och dess påverkan på klimatet i troposfären

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

   Författare :Nordvall Oliver; [2018]
   Nyckelord :Quasi-Biennial Oscillation; QBO; Climate; Polar Vortex; ENSO; TC; Holton-Tan Effect; Quasi-Biennial Oscillation; QBO; Klimat; Polarvirvel; ENSO; TC; Holton-Tan Effect;

   Sammanfattning : The Quasi-Biennial Oscillation (QBO) is the strongest phenomena influencing the stratopheric (~15-50 km height) circulation over the equator. QBO has two phases of downward propagating easterly and westerly winds, which has a total period of approximately 28 months and the phase is defined by the wind direction between the airpressure 25-50 hPa, which is roughly at a height of 30 km. LÄS MER