Search for dissertations about: "space weather"

Showing result 21 - 25 of 67 swedish dissertations containing the words space weather.

  2. 21. Long-term observations of polar mesosphere summer echoes using the ESRAD MST radar

    Author : Maria Smirnova; Patrick Joseph Espy; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rymdteknik; Space Technology;

    Abstract : Polar Mesosphere Summer Echoes (PMSE) are strong radar echoes observed from altitudes of 80-90 km in polar regions, during summer time. PMSE are closely related to the fascinating atmospheric phenomenon known as noctilucent clouds (NLC). READ MORE

  4. 22. Representation and diurnal variation of upper tropospheric humidity in observations and models

    Author : Ajil Kottayil; Byung-Ju Sohn; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rymdteknik; Space Technology;

    Abstract : The role of water vapour is manifold in its climate regulation of the Earth system. Most important of all despite its low concentration, is the role it plays in the upper troposphere. READ MORE

  5. 23. Access to everyday activities in public space : views of people with dementia

    Author : Anna Brorsson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : activities of daily living;

    Abstract : The general aim of this thesis was to increase knowledge about problematic situations in public space as experienced by community-dwelling people with dementia, and about how they meet these situations when doing everyday activities there. The aim also included increasing knowledge about transactions between people with dementia and public space. READ MORE

  6. 24. Development of robotic instruments and techniques for space and astrobiological exploration and research

    Author : Thasshwin Mathanlal; Javier Martin-Torres; Maria-Paz Zorzano Mier; Anshuman Bhardwaj; Colin Wilson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Atmospheric science; Atmosfärsvetenskap;

    Abstract : Astrobiology is the study of life in the universe. The search for life beyond the Earth requires an understanding of the signatures of life, and of the nature of the environments that support it. Space exploration is a crucial factor to achieve these goals. READ MORE

  7. 25. On the Convective-Scale Predictability of the Atmosphere

    Author : Lisa Bengtsson; Gunilla Svensson; Glenn Shutts; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cumulus convection; cellular automata; model uncertainty; sub-grid scale processes; numerical weather prediction; atmosfärvetenskap och oceanografi; Atmospheric Sciences and Oceanography;

    Abstract : A well-represented description of convection in weather and climate models is essential since convective clouds strongly influence the climate system. Convective processes interact with radiation, redistribute sensible and latent heat and momentum, and impact hydrological processes through precipitation. READ MORE