Geoscience Reference
In-Depth Information
CO
2
CO
2
CO
2
}
A
T
C
T
C
T
C
T
C
org
C
org
OM -
high C:N
N
inorg
N
org
CaCO
3
DMS PRODUCTION
CaCO
3
DISSOLUTION
BALLAST EFFECT
CO
2
CO
2
DMS
?
C
org
C
T
C
T
A
T
DMSP
DMS
?
CaCO
3
A
T
C
T
CaCO
3
INDIRECT EFFECTS (Group 2)
N
2
FIXATION
OXYGEN-DENITRIFICATION
CO
2
CO
2
C
T
C
org
C
T
C
org
N
inorg
N
2
N
inorg
N
org
N
2
N
inorg
O
2
O
2
NITRIFICATION
N
2
O PRODUCTION
N
2
O
CO
2
?
?
C
org
C
T
C
org
N
2
O
N
org
NH
4
NO
3
O
2
N
inorg
N
2
O
NO
3
NH
4
?
O
2
Figure 12.1
Summary of feedbacks between the ocean's biogeochemical cycles and radiative forcing induced by ocean acidii cation. Shown are the
pathways that ultimately lead to a change in the atmospheric concentration of radiatively active components, namely CO
2
, N
2
O, and DMS. Refer to the text
and Table 12.1 for a detailed discussion. Solid arrows indicate l uxes and/or transformations, while dashed arrows indicate that this quantity has an
inl uence on the l ux/transformation. The dot-dashed horizontal line depicts the boundary between the euphotic and the aphotic zones.
