Peter J.S. Franks (UCSD/Scripps) and
Changsheng Chen (Univ. of Georgia)
An integrated modeling-data analysis approach will be used to investigate physical-biological interactions on Georges Bank. The specific objectives of this work are to:
These objectives will be achieved using a hierarchy of two- and three-dimensional models, incorporating data gathered during phases I and II of the U.S. GLOBEC Georges Bank study. The model architecture is based on the primitive- equation/turbulence-closure/ecosystem model developed in previous work. These models will use both idealized and realistic topography and forcings, including isolated banks and a realistic regional model of the Gulf of Maine and Georges Bank.
Previous work has shown this model architecture capable of accurately reproducing the tidally forced physical and biological dynamics on Georges Bank. This work must now be expanded to include surface heat flux and wind stress forcings over diel and seasonal time scales, and the influence of the shelf-slope front. The effects of these forcings on the target species of larval cod and haddock will be studied by coupling a metabolic model of larval fish to the physical-ecosystem model. The larval fish model incorporates temperature, food and turbulence dependence of growth.
The proposed research will make several important contributions to the oceanographic community: