[MITgcm-support] cube sphere 510 initial conditions
Menemenlis, Dimitris (3248)
Dimitris.Menemenlis at jpl.nasa.gov
Tue Feb 15 19:07:56 EST 2011
Zhaomin, the initial conditions and the forcing for cube78 were adjusted using a Green's function approach:
The initial conditions are a blend of the Polar Hydrographic Climatology (PHC):
of the WOCE Global Hydrographic Climatology (WGHC):
and of model spin-up.
To a good approximation the initial conditions are:
1.67 * (PHC + 13-yr spin-up) - 0.37 * PHC - 0.13 * (PHC + 3-yr spin-up) - 0.17 * (WGHC + 3-yr spin-up)
To a good approximation, cube78 forcing is ERA40:
but with rain adjusted based on GPCP pentad analysis:
and so as to avoid volume (salinity or SSH) drift in the model.
Let me know if you need more details on any of the above.
Dimitris Menemenlis <menemenlis at jpl.nasa.gov>
Jet Propulsion Laboratory, California Institute of Technology
MS 300-323, 4800 Oak Grove Dr, Pasadena CA 91109-8099, USA
tel: 818-354-1656; cell: 818-625-6498; fax: 818-393-6720
On Feb 14, 2011, at 9:24 AM, Wang, Zhaomin wrote:
> Hi there,
> I am running MITgcm of cube sphere 510. In README.cs510, I found that the run is initialized from cube78 Jan 1992 pickup. I would like to know how those pickup files were obtained, for example, how the spin-up was done before producing Jan 1992 pickup files, and what the forcing was for cube78.
> I will appreciate your help.
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