Sökning: "Aerosol"

Visar resultat 1 - 5 av 80 uppsatser innehållade ordet Aerosol.

  1. 1. Analysis of simulation of lightning in a cold-based convective storm

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

    Författare :Linus Karlsson; [2018]
    Nyckelord :lightning; lightning flash; lightning discharge; cold-based convective cloud; convective cloud; microphysics; microphysical specie; cloud electrification; storm cell; convective storm cell; severe weather; Physics and Astronomy;

    Sammanfattning : In this paper a simulation of a convective cell of a thunderstorm system observed 19th of June 2000 during the Severe Thunderstorm Electrification and Precipitation Study (STEPS) field campaign is being analysed. The storm system has been simulated with an Aerosol-Cloud model and the analysis is based on the output data. LÄS MER

  2. 2. Atmospheric soot particle transformation from urban to rural

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

    Författare :Fredrik Johansson; [2018]
    Nyckelord :Aerosol; soot; atmosphere; Physics and Astronomy; Earth and Environmental Sciences;

    Sammanfattning : The main objective of this work was to investigate if there is a contribution of aerosol from the urban region of Copenhagen at the rural station Vavihill. This was done by analyzing measurement data between 1st of January and the 28th of February 2013 measured with a Dierential Mobility Particle Sizer (DMPS), Soot Particle Aerosol Mass Spectrometer (SP-AMS), a Cloud Condensation Nuclei Counter (CCNC) and a NOx-analyzer. LÄS MER

  3. 3. Charging of aerosol particles - An investigation of the possibility of using Americium-241 for SMPS chargers

    Master-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Sofie Hansen; [2018]
    Nyckelord :SMPS; aerosol particles; Americium-241; climate change; particle number size distribution.; Earth and Environmental Sciences;

    Sammanfattning : Climate change is a fact and effects everybody on this planet, whether its humans, plants or animals. There is a comprehensive agreement about the mechanisms on how aerosol particles affect the radiative balance of the earth, but there is a need of more knowledge to fully understand climate change and the strength of the aerosol radiative forcing. LÄS MER

  4. 4. Atmospheric Ice Formation Potential of Biomass Combustion Aerosol Particles (from residential cooking in Sub-Saharan East Africa)

    Master-uppsats, Lunds universitet/Kärnfysik; Lunds universitet/Fysiska institutionen

    Författare :Lovisa Nilsson; [2017]
    Nyckelord :Ice Nucleation; Aerosol particles; Biomass Combustion; Cook Stoves; Clouds; CFDC; Physics and Astronomy;

    Sammanfattning : .... LÄS MER

  5. 5. A 3D-model for O2 airglow perturbations induced by gravity waves in the upper mesosphere

    H-uppsats, Chalmers tekniska högskola/Institutionen för rymd- och geovetenskap

    Författare :Anqi Li; [2017]
    Nyckelord :MATS; internal gravity wave; mesosphere; O2 airglow;

    Sammanfattning : To investigate the influence of atmospheric waves in the mesosphere, a new Swedishsatellite MATS (Mesospheric Airglow/Aerosol Tomography and Spectroscopy) willbe launched in 2019. It will observe infrared emissions at 762 nm from the O2(b1+g )airglow in the region of 70 - 110 km altitude. LÄS MER

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