/[MITgcm]/manual/s_outp_pkgs/text/pvdiag.tex
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revision 1.2 by cnh, Tue Jan 15 22:29:10 2008 UTC revision 1.3 by jmc, Mon Aug 30 23:09:21 2010 UTC
# Line 330  the surface buoyancy flux by integrating Line 330  the surface buoyancy flux by integrating
330  where $\mathcal{B}_{in}$ is the vertically integrated surface buoyancy (in)flux:  where $\mathcal{B}_{in}$ is the vertically integrated surface buoyancy (in)flux:
331  \begin{eqnarray}  \begin{eqnarray}
332    \mathcal{B}_{in} &=& \frac{g}{\rho_o}\left( \frac{\alpha Q_{net}}{C_w} - \rho_0\beta S_{net}\right)      \mathcal{B}_{in} &=& \frac{g}{\rho_o}\left( \frac{\alpha Q_{net}}{C_w} - \rho_0\beta S_{net}\right)  
333  \label{sec:diag:pv:eq12}  %\label{sec:diag:pv:eq12}
334  \end{eqnarray}    \end{eqnarray}  
335  with $\alpha\simeq 2.5\times10^{-4}\, K^{-1}$ the thermal expansion coefficient (computed  with $\alpha\simeq 2.5\times10^{-4}\, K^{-1}$ the thermal expansion coefficient (computed
336  by the package otherwise), $C_w=4187J.kg^{-1}.K^{-1}$ the specific heat of seawater,  by the package otherwise), $C_w=4187J.kg^{-1}.K^{-1}$ the specific heat of seawater,
# Line 362  the vertical component of Eq.\ref{sec:di Line 362  the vertical component of Eq.\ref{sec:di
362  \end{eqnarray}  \end{eqnarray}
363  and given the assumption that $\omega_z\simeq f$, the second term vanishes and we obtain:  and given the assumption that $\omega_z\simeq f$, the second term vanishes and we obtain:
364  \begin{eqnarray}  \begin{eqnarray}
365    \vec{N_Q}_z &=& -\frac{\rho_0}{g}f B_g \label{sec:diag:pv:eq12}    \vec{N_Q}_z &=& -\frac{\rho_0}{g}f B_g %\label{sec:diag:pv:eq12}
366  \end{eqnarray}  \end{eqnarray}
367  Note that the wind-stress forcing does not appear explicitly here but is implicit in $B_g$  Note that the wind-stress forcing does not appear explicitly here but is implicit in $B_g$
368  through Eq.\ref{sec:diag:pv:eq11}: the buoyancy forcing $B_g$ is determined by the  through Eq.\ref{sec:diag:pv:eq11}: the buoyancy forcing $B_g$ is determined by the

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