Sökning: "deep ocean temperature"
Visar resultat 1 - 5 av 14 uppsatser innehållade orden deep ocean temperature.
1. Magmatic processes and storage beneath Heard Island, southern Indian Ocean
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : A young marine island called Heard Island is located in the southern Kerguelen Plateau in the Indian Ocean, a large igneous province created by the Kerguelen mantle plume. The two major geographic regions on Heard Island have two principal volcano-magmatic suites. LÄS MER
2. Search for Preserved Methanogenic Organisms in Ophiolitic Rocks through Lipid Biomarker Analysis – Implications for Astrobiological Explorations
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : Serpentinization is a metamorphic low-temperature geological process, involving a series of chemical reactions that hydrate ultramafic rocks into serpentines and other minerals such as magnetite and brucite. Moreover, the process produces heavily reducing and highly alkaline fluids together with molecular hydrogen (H2) and methane (CH4), which have the capacity to support chemosynthetic microbial life. LÄS MER
3. Multistressors Related to Climate Change and Their Effects on Global Biodiversity during the Cenozoic Age
Master-uppsats, Lunds universitet/Miljövetenskaplig utbildningSammanfattning : As multistressors have been shown to have significant effects on biodiversity and ecosystem functioning, the following study was made with the purpose of examining how a number of stressors specifically connected to climate change may have varied during the latest 65,5 million years and whether it is possible to predict potential effects on global biodiversity in the future. The analyses focused on global species richness during the Cenozoic age along with variables such as variations in atmospheric CO2, sea surface temperatures and global sea levels derived from analyses of various stable isotopes found in marine sediments. LÄS MER
4. Assessment of forcing mechanisms on net community production and dissolved inorganic carbon dynamics in the Southern Ocean using glider data
Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapSammanfattning : In the Subantarctic Zone of the Southern Ocean, a combination of physical forcings, chemical solubility and biological fixation is controlling the carbon uptake and thus the role the Southern Ocean is playing in the remediation of global climate change. Therefore, it is necessary to understand the mechanisms controlling oceanic carbon budgets and to quantify biological uptake rates to make reliable future climate predictions. LÄS MER
5. Simulating the Response of the Ocean for a Doubling of Carbon Dioxide in the Atmosphere
Kandidat-uppsats, Uppsala universitet/Institutionen för teknikvetenskaperSammanfattning : The uptake of carbon in the ocean may change with global warming, which can have significant feedback effects on the climate. To investigate the change, a two box ocean model has been used to simulate the temperature and carbon content in the atmosphere, in a shallow and deep layer of the ocean, when doubling the amount of carbon dioxide in the atmosphere. LÄS MER