Blar i Faculty of Mathematics and Natural Sciences på forfatter "Haugan, Peter Mosby"

Viser treff 1-13 av 13

    • Deep ocean experiments with fossil fuel carbon dioxide: creation and sensing of a controlled plume at 4 km depth 

      Brewer, Peter G.; Peltzer, Edward T.; Walz, Peter; Aya, Izuo; Yamane, Kenji; Kojima, Ryuji; Nakajima, Yasuharu; Nakayama, Noriko; Haugan, Peter Mosby; Johannessen, Truls (Peer reviewed; Journal article, 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 ...

    • Dissolution from a liquid CO2 lake disposed in the deep ocean 

      Fer, Ilker; Haugan, Peter Mosby (Peer reviewed; Journal article, 2003)
      The dissolution from a liquid CO2 lake source located at a flat ocean bottom at 3,000 m depth is investigated. Using the unsteady, two-dimensional advection–diffusion equation, temporal and spatial distribution of CO2 ...

    • Dynamics of a CO2-seawater interface in the deep ocean 

      Hove, Joakim; Haugan, Peter Mosby (Journal article, 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 ...

    • Flow over a backward-facing step, a numerical study comparing a zand a σ-coordinate model 

      Rygg, Kristin; Alendal, Guttorm; Haugan, Peter Mosby (Peer reviewed; Journal article, 2011)
      Homogeneous, nonrotating flow over a backward-facing rounded step is simulated using the 2D vertical version of two general circulation models, a z-coordinate model—the Massachusetts Institute of Technology general circulation ...

    • Metrics to assess the mitigation of global warming by carbon capture and storage in the ocean and in geological reservoirs 

      Haugan, Peter Mosby; Joos, Fortunat (Peer reviewed; Journal article, 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 geological ...

    • Mixing of the Storfjorden overflow (Svalbard Archipelago) inferred from denstity overturns 

      Fer, Ilker; Skogseth, Ragnheid; Haugan, Peter Mosby (Journal article, 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 ...

    • A numerical study of transport and spreading of gases from natural analogues of gas-seepage through the seafloor 

      Enstad, Lars Inge; Alendal, Guttorm; Haugan, Peter Mosby (Peer reviewed; Journal article, 2009-02)
      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 ...

    • Observations of the Storfjorden overflow 

      Fer, Ilker; Skogseth, Ragnheid; Haugan, Peter Mosby (Peer reviewed; Journal article, 2003)
      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 ...

    • Ocean abyssal carbon experiments at 0.7 and 4 km depth 

      Haugan, Peter Mosby; Brewer, Peter G.; Peltzer, Edward T.; Walz, Peter; Aya, Izuo; Yamane, Kenji; Kojima, Ryuji; Nakajima, Yasuharu; Nakayama, Noriko; Hove, Joakim; Johannessen, Truls; Bellerby, Richard G. J.; Alendal, Guttorm (Journal article, 2005)
      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, ...

    • Ocean storage 

      Caldeira, Ken; Akai, Makoto; Brewer, Peter G.; Chen, Baixin; Haugan, Peter Mosby; Iwama, Toru; Johnston, Paul; Kheshgi, Haroon; Li, Qingquan; Ohsumi, Takashi; Pörtner, Hans; Sabine, Chris; Shirayama, Yoshihisa; Thomson, Jolyon (IPCC Special Report on Carbon dioxide Capture and Storage, Chapter, 2005)

    • Parameterization of drag and dissolution of rising CO2 drops in seawater 

      Gangstø, Reidun; Haugan, Peter Mosby; Alendal, Guttorm (Journal article, 2005-05-24)
      In this work the dynamics and dissolution of a hydratecovered CO2 drop were studied, using a numeric model and data from one of very few CO2 experiments performed in the real ocean. A theory including the standard drag ...

    • Topographic effects on CO2, diffusion and dissolution from the seafloor 

      Rygg, Kristin; Enstad, Lars Inge; Alendal, Guttorm; Haugan, Peter Mosby (Peer reviewed; Journal article, 2009-02)
      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 ...

    • Turbulent diffusion and transport from a CO2 lake in the deep ocean 

      Haugan, Peter Mosby; Alendal, Guttorm (Journal article, 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 ...