HR: 15:00h
AN: OS52I-05    [PDF]
TI: Influence of Physical and Biological Model Structure on Results of Coupled Biological-physical Models of Coastal Upwelling
AU: * Lawrence, C A
EM: clawrence@ucdavis.edu
AF: University of California, Davis, 1 Shields Ave., Davis, CA 95616 United States
AU: Botsford, L W
AF: University of California, Davis, 1 Shields Ave., Davis, CA 95616 United States
AU: Hastings, A
AF: University of California, Davis, 1 Shields Ave., Davis, CA 95616 United States
AU: Dever, E
AF: Scripps Institution of Oceanography,, UCSD, 9500 Gilman Drive, La Jolla, CA 92093-0209 United States
AU: Largier, J
AF: Scripps Institution of Oceanography,, UCSD, 9500 Gilman Drive, La Jolla, CA 92093-0209 United States
AB: Strong wind-induced upwelling on the continental shelf of eastern boundary currents results in high rates of primary and secondary productivity in these regions. The offshore advection of nutrients, and primary and secondary producers during intense upwelling may remove these constituents from the shelf before the potential production represented by the upwelled nutrients is completed. However, the dependence of production on the temporal wind variability is complicated by the occurences of reversals in wind direction and reduction in wind intensity. Here we use two physical models and multiple NPZ models to examine how the structure of these physical and biological models, coupled to represent primary and secondary production in a coastal upwelling system, influences the coupled model results under temporally-varying winds. The physical models compared are an idealized upwelling "conveyor" and a 1-D ROMS model. NPZ models with 3-10 components and different numbers of internal linkages are included in the comparison of biological models.
DE: 4215 Climate and interannual variability (3309)
DE: 4279 Upwelling and convergences
DE: 4842 Modeling
SC: Ocean Sciences [OS]
MN: 2004 Ocean Sciences Meeting