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MODELLING SEDIMENT TRANSPORT FOR THE LAKE MICHIGAN MASS BALANCE PROJECT
Citation:
Endicott, D D. AND R G. Kreis. MODELLING SEDIMENT TRANSPORT FOR THE LAKE MICHIGAN MASS BALANCE PROJECT. Presented at International Association for Great Lakes Research Conferece, Chicago, IL, June 22-26, 2003.
Description:
A sediment transport model is one component of the overall ensemble of models being developed for the Lake Michigan Mass Balance. The SEDZL model is being applied to simulate the fine-grained sediment transport in Lake Michigan for the 1982-1983 and 1994-1995 periods. Model performance has been confirmed by comparing predictions to observations including: discrete sampling of total suspended solids in the water column; continuous measurements of transmissivity from moored instrument arrays; solids settling fluxes in sediment traps; turbidity at municipal water intakes; and mass accumulation rates in sediment cores. Efforts underway to improve sediment transport simulations include (1) incorporation of data from SEDFLUME experiments conducted throughout the lake last year, and (2) the migration to the SEDZL-J model. Results from the full simulation period will be linked to the high-resolution LM3 contaminant transport in such a highly spatially-resolved framework will be illustrated by comparing PCB resuspension flux estimates based upon SEDZL to fluxes generated by the lower resolution LM2 contaminant transport and fate model.