Now showing items 1-10 of 12
Topographic effects on CO2, diffusion and dissolution from the seafloor
At 3000 meters depth liquid CO2 is denser than seawater and hence will be stored as a “lake” on the deep ocean floor, which is expected to gradually be dissolved in seawater. Ocean currents and turbulence will influence ...
Ocean abyssal carbon experiments at 0.7 and 4 km depth
Observations from small-scale (20 to 90 litres) CO2 experiments conducted off the coast of California at 684 m depth and at 3942 m depth are discussed. In both experiments, when the seawater velocity was sufficiently strong, ...
Mixing of the Storfjorden overflow (Svalbard Archipelago) inferred from denstity overturns
(American Geophysical Union, 2004-01-03)
Observations were made of the dense overflow from Storfjorden from a survey conducted at closely spaced stations in August 2002. The field data set consists of conventional conductivity-temperature-depth profiles and ...
Metrics to assess the mitigation of global warming by carbon capture and storage in the ocean and in geological reservoirs
(American Geophysical Union, 2004-09-18)
Different metrics to assess mitigation of global warming by carbon capture and storage are discussed. The climatic impact of capturing 30% of the anthropogenic carbon emission and its storage in the ocean or in ...
(Intergovermental Panel on Climate Change, 2005)
Dynamics of a CO2-seawater interface in the deep ocean
(Sears Foundation for Marine Research, 2005)
A trough filled with liquid CO2 located at 3940 m depth has been used as a model system for CO2 deposition on the seafloor. To study the intrinsic properties of the interface between CO2 and seawater a wave maker was used ...
A numerical study of transport and spreading of gases from natural analogues of gas-seepage through the seafloor
Natural leakages of CO2 are reported in the literature at mid ocean ridges and CH4 seepages in hydrocarbon rich ares. These could potentially serve as natural analogues of leakages from CO2 storages. In this study we have ...
Deep ocean experiments with fossil fuel carbon dioxide: creation and sensing of a controlled plume at 4 km depth
(Sears Foundation for Marine Research, 2005-01)
The rapidly rising levels of atmospheric and oceanic CO2 from the burning of fossil fuels has lead to well-established international concerns over dangerous anthropogenic interference with climate. Disposal of captured ...
Observations of the Storfjorden overflow
The mixing and spreading of the Storfjorden overflow were investigated with density and horizontal velocity profiles collected at closely spaced stations. The dense bottom water generated by strong winter cooling, enhanced ...
Turbulent diffusion and transport from a CO2 lake in the deep ocean
(American Geophysical Union, 2005-09-21)
If liquid CO2 is stored as a dense ‘‘lake’’ on the deep ocean floor, it is expected to dissolve in seawater. Ocean currents and turbulence can increase the net rate of CO2 release by several orders of magnitude compared ...