Search for dissertations about: "ocean"

Showing result 1 - 5 of 453 swedish dissertations containing the word ocean.

  2. 1. The Anthropocene Ocean : Risks and opportunities for global sustainability

    Author : Jean-Baptiste Jouffray; Magnus Nyström; Henrik Österblom; Beatrice Crona; Albert Norström; Douglas McCauley; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Anthropocene; Coral reef; Finance; Globalisation; Ocean; Resilience; Seafood; Social-ecological system; Sustainability; Transdisciplinarity; Transnational corporation; Sustainability Science; vetenskap om hållbar utveckling;

    Abstract : Humans have become a dominant force of planetary change. This epoch, referred to as the Anthropocene, implies profound alterations to the Earth’s marine and terrestrial ecosystems upon which so many people depend. READ MORE

  4. 2. Tracing pathways in the ocean circulation : A temperature and salinity perspective

    Author : Sara Berglund; Kristofer Döös; Jonas Nycander; Göran Broström; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Lagrangian trajectories; Climate modelling; Atlantic Ocean; Southern Ocean; Ocean circulation; heat; atmosfärvetenskap och oceanografi; Atmospheric Sciences and Oceanography;

    Abstract : The ocean circulation plays an essential role in our climate system. It redistributes heat, salt, carbon and other tracers across the globe, making the climate of Earth more moderate. This thesis targets density differences that are driving the ocean circulation. These differences are caused by changes in temperature and salinity. READ MORE

  5. 3. Narrow-pore zeolites and zeolite-like adsorbents for CO2 separation

    Author : Ocean Cheung; Niklas Hedin; Paul A. Wright; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; CO2 separation; zeolites; phosphates; titanium silicates; ion exchange; flue gas CO2 capture; biogas upgrading; Materials Chemistry; materialkemi;

    Abstract : A range of porous solid adsorbents were synthesised and their ability to separate and capture carbon dioxide (CO2) from gas mixtures was examined. CO2 separation from flue gas – a type of exhaust gas from fossil fuel combustion that consists of CO2 mixed with mainly nitrogen and biogas (consists of CO2 mixed with mainly methane) were explicitly considered. READ MORE

  6. 4. Ocean circulation in the Amundsen Sea, West Antarctica

    Author : Ola Kalén; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ocean; currents; icebergs; remote sensing; ocean model;

    Abstract : The increase of mass loss from the Antarctic Ice Sheet is a significant contribution to global sea level rise. The most rapid changes are occurring in the Amundsen Sea area, where the thinning of the floating glaciers is assumed to be driven by the ocean. READ MORE

  7. 5. Design and Optimization of CO2 sorbents for Point Source Emissions and Direct Air Capture

    Author : Ribooga Chang; Ocean Cheung; Jean-Francois Boily; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CCS; CO2 Sorbents; Direct Air Capture;

    Abstract : This thesis presents a comprehensive study on the design and optimization of CO2 sorbents, targeting two distinct applications: CO2 capture from point source emissions and Direct Air Capture (DAC). The research first introduces Na2HfO3 as a potential CO2 sorbent for point source emissions, using the molten salt effects of Na2CO3 and the thermal stability of HfO2. READ MORE