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Outline

Outline. Ecosystem model & winds Model-data comparisons Key parameters Model-model comparisons . Dynamic Ecosystem-Carbon Model. Chlorophyll. Quickscat Winds. NCEP Winds. Wind comparisons. Qscat winds: stronger mixing, colder SST, higher biomass….. ……..following outputs from NCEP.

marcia-anderson
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Outline

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  1. Outline • Ecosystem model & winds • Model-data comparisons • Key parameters • Model-model comparisons

  2. Dynamic Ecosystem-Carbon Model Chlorophyll

  3. Quickscat Winds

  4. NCEP Winds

  5. Wind comparisons Qscat winds: stronger mixing, colder SST, higher biomass….. ……..following outputs from NCEP

  6. NCEP Winds

  7. In situ chl. (left) and model chl. (right): Nov, 2006 (top)Oct-Nov, 2005 (bottom)

  8. Model (lines) vs. data (Symbols)

  9. PON from model (left) and in situ (right)Nov. 2003

  10. PON from model (top) and in situ (bottom)Sep. 2005

  11. 140W-125W, 8N-8S

  12. Carbon, chl., C:chl at 125W

  13. Carbon, chl., C:chl at 140W

  14. Question • How we define/measure POM? • In situ: phy+zoo(?%)+detritus(size?) • Satellite: phy+zoo(?%)+detritus(size?) • Model outputs: • Phy+zoo+large detritus • Phy+50%(ZS+DS)+DL • Phy+total detritus

  15. Phy+total detritus140W-125W, 8N-8S

  16. Phy+50%(ZS+DS)+large detritus140W-125W, 8N-8S

  17. Phy+zoo+large detritus140W-125W, 8N-8S

  18. Chlorophyll ML: similar (tuned), DCM: different

  19. C:Chl ratioML: similar; vertical: some difference

  20. Phytoplankton CML: different; vertical: similar

  21. Growth rate: large difference

  22. NPP: similar

  23. NPP (mg C/m2/d) from Cbmodel (red) and Ecomodel (black)

  24. Summary • Larger spatial & temporal variations in Eco-model than Cb-model • Eco-model over-estimates spatial variability or under-estimates magnitudes in warm waters • Cb-model under-estimates temporal variability • Similarity: • NPP>C:Chl>PhytoC, chl., growth rate

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