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Dale Haidvogel Institute of Marine and Coastal Sciences Coupled Basin- to Regional-Scale Ocean Modeling as Developed in the U.S. GLOBEC Program Dale Haidvogel IMCS, Rutgers University dale@imcs.rutgers.edu
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Dale Haidvogel Institute of Marine and Coastal Sciences The principal objective of U.S. GLOBEC research is to understand and predict the effects of global climate change on ocean ecosystem dynamics
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Dale Haidvogel Institute of Marine and Coastal Sciences Approach: Spatially nested biophysical models NCEP/MM5 -> ROMS/NPZ -> IBM
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Dale Haidvogel Institute of Marine and Coastal Sciences Capabilities developed 1.One- and two-way nesting NCAR CCSM HyCOM SODA 2. 4D Variational data assimilation 3. Food web (NPZD) models 4. Individual-based models (zoop, salmon)
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Dale Haidvogel Institute of Marine and Coastal Sciences Northeast Pacific Program: Spatial windows † † CCS box contains multiple applications-dependent inner domains
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Dale Haidvogel Institute of Marine and Coastal Sciences “Reduced” CCS (underway) Inner CCS domain (mesoscale survey) 2-Km resolution 2002 COAMPS 9 Km forcing SODA boundary conditions Will include ecosystem model (NPZD+Fe, NEMURO+Fe) Forward runs / data assimilation
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Dale Haidvogel Institute of Marine and Coastal Sciences Questions and Issues How good is the forward model? Does it improve upon the reanalysis fields? What processes / model details control the errors? Use of 4DVar to correct errors Redo above for the ecosystems
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Dale Haidvogel Institute of Marine and Coastal Sciences
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Dale Haidvogel Institute of Marine and Coastal Sciences
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Dale Haidvogel Institute of Marine and Coastal Sciences SODA
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Dale Haidvogel Institute of Marine and Coastal Sciences Low vertical resolution
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Dale Haidvogel Institute of Marine and Coastal Sciences Increased resolution of surface layer
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Dale Haidvogel Institute of Marine and Coastal Sciences
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Dale Haidvogel Institute of Marine and Coastal Sciences
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Dale Haidvogel Institute of Marine and Coastal Sciences
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Dale Haidvogel Institute of Marine and Coastal Sciences Recap Significant hindcast skill over several months Influence of boundary data, resolution, … Errors related to mesoscale evolution of flow? Assimilation next (physics first)
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Dale Haidvogel Institute of Marine and Coastal Sciences Questions?
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