<p><b>mpetersen@lanl.gov</b> 2012-08-08 08:57:48 -0600 (Wed, 08 Aug 2012)</p><p>Updating proposal for ACC project based on Tuesday meeting. Using Pacanowski and Philander for vertical mixing in all three domains.<br>
</p><hr noshade><pre><font color="gray">Modified: trunk/documents/ocean/current_design_doc/acc_proposal/acc_proposal.pdf
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Modified: trunk/documents/ocean/current_design_doc/acc_proposal/acc_proposal.tex
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--- trunk/documents/ocean/current_design_doc/acc_proposal/acc_proposal.tex        2012-08-07 20:16:40 UTC (rev 2095)
+++ trunk/documents/ocean/current_design_doc/acc_proposal/acc_proposal.tex        2012-08-08 14:57:48 UTC (rev 2096)
@@ -52,8 +52,9 @@
\item Global quasi-uniform resolution: 120km, 30km (60km, 15km)
\item Global variable resolution, Southern Ocean, transition 30S to 40S, high resolution south of 30S: 30km/120km (15km/60km)
\item Global variable resolution, Southern Ocean and Atlantic: (30km/120km, 15km/60km)
+\item Run simulations out 100 years.
\item Wind stress: Monthly mean NCEP, but multiplied by a factor south of 40S, varying smoothly from 35S to 40S. Factor values: 0.5, 1, 2 (0.1, 0.2, 5, 10) (See range in Fig. 11a of \cite{Nikurashin_Vallis12jpo})
-\item Vertical tracer diffusion: Richardson config\_bkrd\_vert\_diff = 1e-6, 1e-5, 1e-4 (2e-6, 5e-6, 2e-5, 5e-5, 2e-4, 5e-4). If desired, we could set config\_rich\_mix = 0.0 to be similar to convective adjustment in \cite{Nikurashin_Vallis11jpo,Nikurashin_Vallis12jpo}.
+\item Vertical tracer diffusion: Pacanowski and Philander config\_bkrd\_vert\_diff = 1e-6, 1e-5, 1e-4 m$^2$/s (2e-6, 5e-6, 2e-5, 5e-5, 2e-4, 5e-4m$^2$/s). If desired, we could set config\_rich\_mix = 0.0 to be similar to convective adjustment in \cite{Nikurashin_Vallis11jpo,Nikurashin_Vallis12jpo}.
\item GM to be added when available.
\item Other settings may be like those of simulations for paper 1:
\subitem initial condition: WOCE T\&S
@@ -64,6 +65,7 @@
\subitem horizontal mixing: del2 varying with grid, del4 with Leith closure
\subitem third order horizontal flux corrected transport on tracers
\subitem Jackett \& McDougall EOS
+\item Evaluation: Plot maximum overturning streamfunction, mean 2C and 5C isotherm depth over some region, and (perhaps) mixed layer depth averaged over a region. These will each be plotted as functions of diapycnal mixing and Southern Ocean wind stress amplification. See Fig 13 in \cite{Nikurashin_Vallis11jpo} and Fig 11 in \cite{Nikurashin_Vallis12jpo}.
\end{enumerate}
{\bf Simulation specifications for Idealized MPAS-Ocean.} This configuration will be an annulus connected to a box, where the annulus represents the ACC and the box represents the Atlantic basin. The annulus will have a width of approximately 20 degrees in latitude centered at approximately 50S. The box will span approximately 90 degrees in longitude and will extend to approximately 60N. Note: We can configure this system on a sphere of smaller radius than the Earth. The computational burden goes as $r^2$, so large computational advantages can be found here.
@@ -90,7 +92,7 @@
\begin{enumerate}
\item Atlantic grid with reentrant ACC, 0.1 degree resolution
\item Wind stress: Monthly mean NCEP, but multiplied by a factor south of 40S, varying smoothly from 35S to 40S. Factor values: 0.5, 1, 2 (0.1, 0.2, 5, 10) (See range in Fig. 11a of \cite{Nikurashin_Vallis12jpo})
-\item Vertical tracer diffusion: KPP, background vertical diffusion = 1e-6, 1e-5, 1e-4 (2e-6, 5e-6, 2e-5, 5e-5, 2e-4, 5e-4)
+\item Vertical tracer diffusion: Pacanowski and Philander, background vertical diffusion = 1e-6, 1e-5, 1e-4 m$^2$/s(2e-6, 5e-6, 2e-5, 5e-5, 2e-4, 5e-4m$^2$/s)
\item Other settings may be like those of \cite{Maltrud_McClean05om}
\end{enumerate}
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