Search for dissertations about: "space weather"

Showing result 11 - 15 of 67 swedish dissertations containing the words space weather.

  2. 11. Spatiotemporal prediction of arbovirus outbreak risk : the role of weather and population mobility

    Author : Aditya L. Ramadona; Joacim Rocklöv; Yesim Tozan; Hari Kusnanto; Lutfan Lazuardi; Paula Moraga; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; arbovirus; dengue; temperature; rainfall; extreme weather; climate variability; population mobility; twitter data; social media; forecasting model; early warning; epidemic; big data; INLA; spatiotemporal model; climate services;

    Abstract : Background: Arboviruses such as dengue and chikungunya have been a significant public health burden globally for several decades. In Indonesia, all four dengue serotypes are circulating. READ MORE

  4. 12. Efficiency factors for space heating system in buildings

    Author : Christian Brembilla; Thomas Olofsson; Ronny Östin; Mohsen Soleimani-Mohseni; Bjørn Reidar Sørensen; Umeå universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Efficiency factors of space heating; hydronic panel radiator; hydronic floor heating; multilayer wall; numerical modelling; room control volume; decrement factor; time delay; heat conduction; heat convection; heat radiation; heat storage; thermal inertia; Euler solver; Newton-Raphson method; synthetic weather file; feedback and feed-forward control strategies; adaptive control; validation methodology; uncertainty bands; robustness of model predictions; thermostatic booth simulator; differential sensitivity analysis; transient model of panel radiator with multiple storage elements; active thermal mass; benchmark performance indicator; linear regression model; calibration through uncertainty bands; hybrid model of low-energy building: law driven data driven; outdoor temperature compensation heating curve; solar radiation model; finite difference method; heat equation;

    Abstract : The thesis focuses on the efficiency of the space heating system. In particular, the efficiency factors measure the efficiency of thermal zone. The efficiency factors measures how the energy is used in a space heating. READ MORE

  5. 13. Space-Time Prediction of Ocean Winds

    Author : Anders Malmberg; Matematisk statistik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Statistics; operations research; image warping; thin-plate splines.; near-surface ocean winds; variogram parameters; Space-time Kalman filtering; real-time assimilation; residual wind speed; actuarial mathematics; programming; Statistik; operationsanalys; programmering; aktuariematematik;

    Abstract : The topic of this thesis is inspired by an experiment in which a vessel, laying a submarine cable, was provided with forecasts overlaid with satellite observations of significant wave height. During the operation, the vessel was close to an adverse weather area and the personnel on board could confirm that the forecast was not as close to the "ground truth" as the satellite observation was. READ MORE

  6. 14. Satisfaction with Public Transport Trips

    Author : Roberto Fernandez Abenoza; Yusak Octavius Susilo; Oded Cats; Sigal Kaplan; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; customer satisfaction; public transport; three-factor theory; accessibility; built-environment; weather; door-to-door trips; firs and last-mile; market segmentation; geographical variations; service quality; safety perceptions; temporal variations; Transportvetenskap; Transport Science;

    Abstract : Continuous urban growth, environmental issues, competition for limited space, longer commuting distances as well as the need to promote equity and equality in society are the primary reasons that make the improvement of public transport (PT) services a key policy area in many countries across the globe. Travel satisfaction measures the perceived quality of the PT service and it is an important aspect that operators and PT authorities need to consider when improving the service offered. READ MORE

  7. 15. Microclimate Load: Transformed Weather Observations for Use in Durable Building Design

    Author : Anneli Högberg; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microclimate load; weather observations; natural degradation conditions; durable design; transformation;

    Abstract : This study investigates the microclimate load, i.e. conditions prevailing in the immediate atmospheric environment of a building, to establish the natural conditions of degradation for a building surface at a specific location. READ MORE