Page path:
- Home
- Research
- Seafloor Dynamics
- Completed projects
- former SD projects (2013 - 2017)
- CCP5 Key Hypotheses
CCP5 Key Hypotheses
Different seabed morphologies (from small ripples to large dunes) and morphodynamic timescales (from steady-state to highly dynamic) significantly affect OM and nutrient turnover in permeable sediments.
Current and turbulence measurements in combination with high-resolution bathymetric mapping of the seafloor morphology will be applied to quantify the amount of redistributed sediment and the pressure field that drives porewater flow. Benthic oxygen uptake and denitrification rates will be determined using in-situ approaches and experimental approaches applicable to permeable sediments. Measurements will be used to parameterize and improve existing numerical models of hydro- and morphodynamics, porewater transport and biogeochemical reactions.
Current and turbulence measurements in combination with high-resolution bathymetric mapping of the seafloor morphology will be applied to quantify the amount of redistributed sediment and the pressure field that drives porewater flow. Benthic oxygen uptake and denitrification rates will be determined using in-situ approaches and experimental approaches applicable to permeable sediments. Measurements will be used to parameterize and improve existing numerical models of hydro- and morphodynamics, porewater transport and biogeochemical reactions.
Physical sediment properties, morphologies and hydrodynamic settings correlate with specific OM and nutrient turnover rates. Local rates can be extrapolated to establish a budget for the German Bight/North Sea.
By combining the findings of measurements and models with existing databases on the spatial distribution of sediment properties, bathymetry, and hydrography, we aim to extrapolate OM and nutrient turnover from case studies to the larger scale (German Bight).
By combining the findings of measurements and models with existing databases on the spatial distribution of sediment properties, bathymetry, and hydrography, we aim to extrapolate OM and nutrient turnover from case studies to the larger scale (German Bight).