142
B. J. Haupt· K. Stattegger . D. Seidov
The simulated sediment distribution fits well the observed location of the
main sediment drifts south of Iceland and Greenland. Additional lateral sediment input did not change the regional distribution of the high sedimentation
areas. However, these changes in the input did affect the sedimentation rates and
the transport through the cross sections. The increased sediment transport was
predicted by the models both in the main body of water, and within the bottom
layer. In comparison to the distribution within the water column the transport
in the bottom layer showed a weaker response to the addition oflateral sediment
sources. The calculation of cross section transport is a valuable tool in mass balancing through oceanic gateways.
In both experiments with SEDLOB we found that coastal downward currents
led to reduced bottom current velocities and therefore to a reduced sediment
transport capacity. This effect is especially pronounced in the areas of steep bottom gradients.
Finally, we want to emphasize that both models may be coupled to any OGCM
which provides the adequate input data fields of temperature, salinity, velocity
and convection depth.
Acknowledgments
This research was supported by the Deutsche Forschungsgemeinschaft (DFG)
and SFB313 of Kiel University. We appreciate Avan Antia's und Derek Dreger's
help on correcting our English. We thank Johannes Wendebourg for his very
useful comments and suggestions which led to improvement of the manuscript.
References
Allen, J. R. L. (1985) Principles of Physical Sedimentology, George Allen & Unwin, London,
272 pp
Anderson, R. S., and N. F. Humphrey (1989) Interaction of Transport Processes in the Evolution of Arid Landscapes, Quantitative Dynamic Stratigraphy, ed. T. A. Cross, Prentice
Hall, Englewood Cliffs, New Jersey, 349-361
Apel, J. R. (1987) Principles of Ocean Physics, Academic Press, London, 38, 634 pp
Bitzer, K., and R. Pflug (1989) DEPOD: A Three-Dimensional Model for Simulating Clastic
Sedimentation and Isostatic Compensation in Sedimentary Basins, Quantitative
Dynamic Stratigraphy, ed. T. A. Cross, Prentice Hall, Englewood Cliffs, New Jersey,
335-348
Bogardi, J. L. (1974) Sediment Transport in Alluvial Streams, Akademiai Kiado, Budapest,
826 pp
Bohrmann, G., R. Henrich, and J. Thiede (1990) Miocene to Quaternary Paleoceanography
in the Northern North Atlantic: Variability in Carbonate and Biogenic Opal Accumulation, Geological History of the Polar Oceans: Arctic versus Antarctic, ed. U. Bleil and
J. Thiede, Kluwer Academic Publishers, Netherland, 647 -675
Bryan, K. (1969) A Numerical Method for the Study of the Circulation of the World Ocean,
Journal of Computational Physics, 4, 347 -376
Cao, S., and I. Lerche (1994) A Quantitative Model of Dynamical Sediment Deposition and
Erosion in Three Dimensions, Computer & Geosiences, 20, 4, 635-663
B. J. Haupt· K. Stattegger . D. Seidov
The simulated sediment distribution fits well the observed location of the
main sediment drifts south of Iceland and Greenland. Additional lateral sediment input did not change the regional distribution of the high sedimentation
areas. However, these changes in the input did affect the sedimentation rates and
the transport through the cross sections. The increased sediment transport was
predicted by the models both in the main body of water, and within the bottom
layer. In comparison to the distribution within the water column the transport
in the bottom layer showed a weaker response to the addition oflateral sediment
sources. The calculation of cross section transport is a valuable tool in mass balancing through oceanic gateways.
In both experiments with SEDLOB we found that coastal downward currents
led to reduced bottom current velocities and therefore to a reduced sediment
transport capacity. This effect is especially pronounced in the areas of steep bottom gradients.
Finally, we want to emphasize that both models may be coupled to any OGCM
which provides the adequate input data fields of temperature, salinity, velocity
and convection depth.
Acknowledgments
This research was supported by the Deutsche Forschungsgemeinschaft (DFG)
and SFB313 of Kiel University. We appreciate Avan Antia's und Derek Dreger's
help on correcting our English. We thank Johannes Wendebourg for his very
useful comments and suggestions which led to improvement of the manuscript.
References
Allen, J. R. L. (1985) Principles of Physical Sedimentology, George Allen & Unwin, London,
272 pp
Anderson, R. S., and N. F. Humphrey (1989) Interaction of Transport Processes in the Evolution of Arid Landscapes, Quantitative Dynamic Stratigraphy, ed. T. A. Cross, Prentice
Hall, Englewood Cliffs, New Jersey, 349-361
Apel, J. R. (1987) Principles of Ocean Physics, Academic Press, London, 38, 634 pp
Bitzer, K., and R. Pflug (1989) DEPOD: A Three-Dimensional Model for Simulating Clastic
Sedimentation and Isostatic Compensation in Sedimentary Basins, Quantitative
Dynamic Stratigraphy, ed. T. A. Cross, Prentice Hall, Englewood Cliffs, New Jersey,
335-348
Bogardi, J. L. (1974) Sediment Transport in Alluvial Streams, Akademiai Kiado, Budapest,
826 pp
Bohrmann, G., R. Henrich, and J. Thiede (1990) Miocene to Quaternary Paleoceanography
in the Northern North Atlantic: Variability in Carbonate and Biogenic Opal Accumulation, Geological History of the Polar Oceans: Arctic versus Antarctic, ed. U. Bleil and
J. Thiede, Kluwer Academic Publishers, Netherland, 647 -675
Bryan, K. (1969) A Numerical Method for the Study of the Circulation of the World Ocean,
Journal of Computational Physics, 4, 347 -376
Cao, S., and I. Lerche (1994) A Quantitative Model of Dynamical Sediment Deposition and
Erosion in Three Dimensions, Computer & Geosiences, 20, 4, 635-663