9 |
This model overlays the dissolved inorganic carbon biogeochemistry |
This model overlays the dissolved inorganic carbon biogeochemistry |
10 |
model (the ``dic'' package) over a 2.8$^o$ global physical model. The |
model (the ``dic'' package) over a 2.8$^o$ global physical model. The |
11 |
physical model has 15 levels, and is forced with a climatological |
physical model has 15 levels, and is forced with a climatological |
12 |
annual cycle of surface wind stresses [Trenberth \textit{et al.}, |
annual cycle of surface wind stresses \cite{Trenberth_etal_89}, |
13 |
1989], surface heat and freshwater fluxes [Jiang \textit{et al.}, |
surface heat and freshwater fluxes \citre{jiang99} with additional |
14 |
1999] with additional relaxation toward climatological sea surface |
relaxation toward climatological sea surface temperature and salinity |
15 |
temperature and salinity [Levitus and Boyer, 1994; Levitus \textit{et |
\cite{lev:94a,Levitus94}. It uses the Gent and and McWilliams |
16 |
al.}, 1994]. It uses the Gent and and McWilliams [1990] eddy |
\cite{gen-mcw:90} eddy parameterization scheme, has an implicit |
17 |
parameterization scheme, has an implicit free-surface, implicit |
free-surface, implicit vertical diffusion and uses the convective |
18 |
vertical diffusion and uses the convective adjustment scheme. |
adjustment scheme. |
19 |
|
|
20 |
The biogeochemical model considers the coupled cycles of carbon, |
The biogeochemical model considers the coupled cycles of carbon, |
21 |
oxygen, phosphorus and alkalinity. A simplified parameterization of |
oxygen, phosphorus and alkalinity. A simplified parameterization of |
28 |
is remineralized according to the empirical power law relationship |
is remineralized according to the empirical power law relationship |
29 |
determined by Martin et al [1987]. The fate of carbon is linked to |
determined by Martin et al [1987]. The fate of carbon is linked to |
30 |
that of phosphorus by the Redfield ratio. Carbonate chemistry is |
that of phosphorus by the Redfield ratio. Carbonate chemistry is |
31 |
explicitly solved [Follows {\it et al.}, 2005] and the air-sea |
explicitly solved \cite{Follows_etal_05} and the air-sea exchange of |
32 |
exchange of CO$_2$ is parameterized with a uniform gas transfer |
CO$_2$ is parameterized with a uniform gas transfer coefficient |
33 |
coefficient following Wanninkhof [1992]. Oxygen is also linked to |
following \cite{Wanninkhof_92}. Oxygen is also linked to phosphorus by |
34 |
phosphorus by the Redfield ratio, and oxygen air-sea exchange also |
the Redfield ratio, and oxygen air-sea exchange also follows |
35 |
follows Wanninkhof [1992]. For more details see Dutkiewicz {\it et |
\cite{Wanninkhof_92}. For more details see \cite{Dutkiewicz_etal_05}. |
|
al.}, 2005. |
|
36 |
|
|
37 |
The example setup described here shows the physical model after 5900 |
The example setup described here shows the physical model after 5900 |
38 |
years of spin-up and the biogeochemistry after 2900 years of spin-up. |
years of spin-up and the biogeochemistry after 2900 years of spin-up. |
107 |
\end{itemize} |
\end{itemize} |
108 |
|
|
109 |
These terms (for the first four tracers) are described more in |
These terms (for the first four tracers) are described more in |
110 |
Dutkiewicz {\it et al.} (2005) and by McKinley {\it et al.} (2004) for |
\cite{Dutkiewicz_etal_05} and by \cite{McKinley_etal_04} for the terms |
111 |
the terms relating to oxygen. |
relating to oxygen. |
112 |
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|
113 |
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|
114 |
\subsection{Code configuration} |
\subsection{Code configuration} |