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Update on the Ecological Model

Update on the Ecological Model. Jamie Vaudrey, James Kremer (UCONN) Mark Brush (VIMS), Dave Ullman (URI) CHRP October 8, 2009. Phytoplankton. O. D. 2. N P. Processes of the model & basis for formulations: (excluding macroalgae...). Temp, Light,

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Update on the Ecological Model

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  1. Update on the Ecological Model Jamie Vaudrey, James Kremer (UCONN) Mark Brush (VIMS), Dave Ullman (URI) CHRP October 8, 2009

  2. Phytoplankton O D 2 N P Processes of the model & basis for formulations: (excluding macroalgae...) Temp, Light, Boundary Conditions Chl, N, P, Salinity O2 coupled stoichiometrically Productivity Physics Surface layer - - - - - - - - - Deep layer - - - - - - - - - Bottom sediment BZI mixing flushing Atmospheric Photic zone heterotrophy Flux to bottom deposition . ƒ[Chl] N ƒ(Chl10d) Sediment Land-use organics Benthic heterotrophy N P Denitri- fication ƒ(OM,T) % .

  3. Brown, CTD Surveys salinity oxygen Buoy Network salinity oxygen chlorophyll Nutrient Stations DIN DIP

  4. July 6, 2006

  5. Data not final – preliminary results

  6. Data not final – preliminary results

  7. Data not final – preliminary results

  8. Data not final – preliminary results

  9. Data not final – preliminary results

  10. Data not final – preliminary results

  11. Data not final – preliminary results

  12. Data not final – preliminary results

  13. Bay Model River Area = fraction of inflow due to source Data not final – preliminary results

  14. Bay Model River Area = fraction of inflow due to source Data not final – preliminary results

  15. Data not final – preliminary results

  16. Box 3 Current Conditions Phytoplankton surface bottom Nitrogen N reduced 50% surface bottom Oxygen

  17. Application of Model Results • Determine largest sources of input. • What controls the ecology in elements? • Additional Model Scenarios • Varying N input. • Additional ROMS runs, varying meteorological conditions.

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