Sökning: "Nordvall Oliver"

Hittade 2 uppsatser innehållade orden Nordvall Oliver.

  1. 1. Boundary Layer Studies above lake Erken using Modelling and UAV

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

    Författare :Oliver Nordvall; [2020]
    Nyckelord :Internal Boundary Layer; UAV; Sea Breeze Circulation; Numerical Simulation; WRF; lake Erken; Internt gränsskikt; UAV; Sjöbris; Numerisk simulation; WRF; Erken;

    Sammanfattning : Internal boundary layers (IBLs) above lakes, created primarily by the autumn differential of land and lake surface temperatures, present a unique way of studying the lake-atmosphere coupling within the boundary layer. The small and mobile unmanned aerial vehicles (UAVs) contribute to new research areas within the boundary layer, offering high spatial resolution measurements to complement already existing observations. 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