[RegCNET] RegCM4-CLM4.5 output frequency

[Giuliani Graziano]

> How do I control the output frequency for RegCM4-CLM4.5?I want daily
> output, not monthly (which is the default).
> It seems CLM4.5 ignores clmfrq=6.
[...]

The parameter you want to change is hist_nhtfrq in the namelist clm_inparm.
To have daily output you should set this to 24 (it is in hours). We have
not digged n deep in the parameters, you may want to have a look in the
CLM4.5 User Guide. Some we have hardcoded (data path especially), some may
be not relevant to the RegCM+CLM.

&clm_inparam
[...]
 hist_nhtfrq = 24,
[...]
/

[...]
> One other question. For my China run, it didn't crash but it produced
> this message "WARNING: snow balance error". Is that something to
> be concerned about?
[...]

If the model does not crash, it should not be fatal. The problem here is
that we initialize the snow over the Himalaya using temperature and
elevation as a proxy (mod_clm_mkarbinit.F90, subroutine mkregcminit), and
this may cause inconsistencies especially in the first season for the
snow.
If you have a good snow dataset to make initialization, you can push it to
CLM in the DOMAIN file in the snowam field.

Ciao!

G.