Physics – Geophysics
Scientific paper
Nov 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.4211h&link_type=abstract
Geophysical Research Letters, Volume 28, Issue 22, p. 4211-4214
Physics
Geophysics
8
Marine Geology And Geophysics: Marine Sediments-Processes And Transport, Meteorology And Atmospheric Dynamics: Climatology, Oceanography: General: Numerical Modeling, Oceanography: General: Paleoceanography
Scientific paper
The procedure for the simulation of a time dependent sediment stratigraphy for 4 different sediment species with a global biogeochemical ocean general circulation model is presented. In this feasibility study, a sediment column for the last 131 kyr was accumulated through use of a variable ocean velocity field (mixed from preindustrial and glacial ocean time slices in a kinematic approach). The biogenic components of sediment are entirely a model product. Artificial sediment cores were ``recovered'' from the simulated stratigraphy. The approach is the foundation for a systematic comparison of paleoclimate simulations with the sediment record. Through use of adjoint model codes the direct 4-dimensional data assimilation of paleoclimate observations will become possible in the long range.
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