[ncl-talk] offline global MOC calculation with CCSM3

[Dennis Shea]

Hi Amanda

The developer of the ' moc_globe_atl' function:

https://www.ncl.ucar.edu/Document/Functions/Built-in/moc_globe_atl.shtml

replied to me as follows:

==

"I believe the moc_globe_atl function should work with any 1-D latitude
grid (e.g.,  fspan(-89.,89.,179) ); it does not require the actual
lat_aux_grid array from the POP output."

Cheers
D

On Fri, Apr 27, 2018 at 9:35 AM, Amanda Frigola <afrigola at marum.de> wrote:

> Dear all,
>
> I ​would like to use ncl to calculate global MOC from the CCSM3 output, as
> default MOC calculations were turned off in my runs.
> I found the function moc_globe_atl which does that:
> http://www.ncl.ucar.edu/Document/Functions/Built-in/moc_globe_atl.shtml.
> Nevertheless, this function requires lat_aux_grid as input parameter, and
> this variable is again unfortunately not available from my model output
> runs.
>
> My question would be: Is there a way to compute lat_aux_grid from the
> model output variables ULAT (or TLAT) or similar?
>
> Alternatively I thought of computing global MOC manually adapting the
> algorithm described in https://www.ncl.ucar.edu/Applications/moc.shtml,
> using VVEL.
> I was though wondering if neglecting the eddy-related meridional
> velocities would have a big impact on the results.
>
> I would appreciate any suggestions.
>
> Best wishes,
> Amanda​​
>
>
> PS: I apologise if I sent the same email twice, I had the mail delivery
> disabled and I could not receive any answers. Please, in case someone
> already replied to my email, could you forward me the answer again? Sorry
> for the inconveniences.
>
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