Synthesis of the Arctic System Carbon Cycle

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Synthesis of the Arctic System Carbon
Cycle University of Alaska Fairbanks A.
David McGuire - lead PI Marine Biological
Laboratory Jerry Melillo Bruce
Peterson Jim McClelland Dave
Kicklighter MIT Ron Prinn Mick
Follows Purdue University Qianlai Zhuang


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Ocean Modeling based on ECCO2

• Offline ocean biogeochemistry model
• Regional approach MITgcm ECCO2 configuration,
  Arctic tile
• Explicit carbon cycle model
• Local ocean carbon cycle
• air-sea exchange of CO2
• riverine sources of DOC
• transport of carbon and nutrients through basin

Menemenlis et al. Arctic tile SSH
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Darwinian Models of Ocean Ecology and Biogeography
Single ensemble member (Iseed 5007) Modelled
annual mean surface phyto (uM P)
SeaWiFS mean Chl
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Darwinian Models of Ocean Ecology and Biogeography
Single ensemble member (Iseed 5007) Modelled
annual mean surface phyto (uM P)
SeaWiFS mean Chl
SeaWiFS coccoliths (mar 03)
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annual mean phytoplankton abundance in each of 30
Initialized functional groups
(Iseed 5007)
Darwinian approach natural selection
of ecosystem structure Emergent
biogeography Relative fitness of phytoplankton
functional types sensitive to variability of
enironment Resolution of geostrophic eddy scales
significant... ECCO2 framework appropriate
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annual mean phyto(P), 0-120m (Iseed
17656)
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