ATMOSPHERIC CIRCULATION PATTERNS
CO
SOLUBILITY PUMP
2
CO
Transport of CO
2
2
through the
air-sea interface AIR-SEA INTERFACE CO
2
EXCHANGES
Low High
Latitudes Latitudes
PHYSICAL PUMP
CO
2
CO
2
CO
2
CO
2
Transport of CO
2

CO
by Vertical
2
Deep Water Masses CO
Mixing and Deep
Respiration 2
Formation
Water Masses
Food Web
Global Action
Long-time
Scale
Vertical Mixing
Nutrients
Local Action
Phytoplankton
(Ammonia)
Short-time
Scale
CO
2 Primary
Oxygen
Nutrients
Production
Organic Carbon
CO
2
Bacteria
Nutrient
Egestion
Remineralization
(Nitrate)
Decomposition
s
Particulate Carbon
(Organic and Inorganic)
Sinking )
Nutrients
(Nitrate
BIOLOGICAL PUMP
CO
2
Vertical gravitational
settlings of
biogenic debris
Bacteria
Carbon Deposition
Oxidation
Sources:
Carbon Burial
R. Chester, 2003; H. Elderfield, 2006; R.A. Houghton, 2007; T.J.
Lueker et al, 2000;J.A. Raven and P.G. Falkowski, 1999.
22
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