[cam-users] convective fluxes
David Noone
dcn@gps.caltech.edu
Mon, 17 Mar 2003 15:06:00 -0800 (PST)
Hi Tatiana,
The codes are not set up to output the gross upward and downward fluxes
- you will need to make some modifications. Here are some tips which
might help.
There are two convection routines that generate cloud mass fluxes. For
the ZM scheme, the net mass flux (CMFMC) is the sum of updraft and
downdraft mass fluxes (this is done in the routine cldprp, which is
within zm_conv in CAM2, but stands alone in CCM3, as mc(i,k) = mu(i,k) +
md(i,k)). You can track these three variables back to the calling
routine (tphysbc). Ultimately you will want to output mu (updraft) and
md (downdraft) separately - see user guide on how to output additional
diagnostics - basically calls outfld(), probably, in tphysbc. These
fluxes are used to transport constituents (such as liquid water in
CAM2). Additionally, the Hack scheme generates updraft fluxes (no
downdrafts). CMFMC that appears on the history tape is the sum of cmfmc
from the ZM scheme and cmfmc2 from the hack scheme. You can output the
latter as well.
Hope this helps,
David
On Mon, 17 Mar 2003, Tatiana Erukhimova wrote:
> Dear CCM3 users,
>
> My question is about deep convection parameterization scheme. Does
> anybody know how to save both updraft and downdraft convective fluxes
> rather than total convective mass flux (CMFMC in the Master Field List)?
>
> Thank you in advance,
>
> Tatiana
>
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> cam-users@ucar.edu
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