[esp-r] Re: instable with global solar

[Holger Bertling]

Hi,

I took the CSV-file as userdefined-database
and tried to switch the CSV-file...
First choosing make new database with zeros
and then importing the CSV into it works fine.

But it still is very instable,
even with the model without mineralwool
and a time-step of one Minute.
I found some new messages, for example:

 Default invoked; diffuse h.= global h.; direct n.=0.
 Day No. = 183 (i.e.  2nd of July),  Time 19:15 Hours
 MZSINT: increment 293416 direct n.1478.1 > solar constant
 Default invoked; diffuse h.= global h.; direct n.=0.
 Day No. = 183 (i.e.  2nd of July),  Time 19:16 Hours
 MZSINT: increment 293417 direct n.1632.1 > solar constant

The climate-file for this day is:

* day  2 month  7
 0,169,0,3,338,97
 0,166,0,3,339,99
 0,163,0,2,339,100
 1,161,1,2,339,100
 0,160,34,2,340,100
 1,168,134,2,343,100
 58,184,305,2,341,93
 125,201,485,2,349,87
 164,216,635,1,12,86
 177,231,739,2,64,77
 177,241,841,2,78,75
 173,247,878,3,78,74
 177,248,839,3,71,68
 178,248,759,3,67,67
 167,248,658,4,69,66
 96,242,402,4,73,67
 55,235,297,3,68,71
 12,226,177,3,63,76
 0,211,41,2,57,78
 0,196,0,2,57,86
 0,187,0,2,70,87
 0,180,0,2,61,90
 0,173,0,2,39,93
 0,166,0,2,41,95

Does anybody know what to do?

Thanks in advance
and best regards,
Holger



Am Donnerstag, den 30.10.2008, 19:44 +0000 schrieb Georgios
Kokogiannakis:
> Hi Holger,
> 
> The switch from Direct normal to Global Horizontal works fine as far
as I am 
> aware. It also exorts ascii files correctly (just tested it).
> If you manage to open the ascii file you will see a line similar tp
this one:
>  1967,52.00,0.00,123   # year, latitude, long diff, global horiz rad
flag
> 
> the last number (i.e. "123") means that it is using Global horizontal.
If it 
> is 0 then it uses direct normal.
> 
> Regarding the MZELWE Longwave Flux Messages I think you should check
your 
> relative humidity values. Do not leave to 0% - change them to
something like 
> 50%.
> 
> Hope this helps.
> Georgios
> 
> 
> On Thursday 30 October 2008 19:27, Holger Bertling wrote:
> > Dear All,
> >
> > I solved my stable-problems within normal simulations.
> > (see: MZELWE Longwave Flux Messages)
> >
> > Now I want to simulate the model with different climate-files.
> > There are only global solar horizontal available.
> >
> > I switched the climate-files with clm to global solar.
> > Now the simulation is really getting instable.
> > MZELWE-Messages without ending.
> >
> > What surprised me:
> > I could read the files with an editor,
> > but after I switched them to global solar
> > they cannot be opend with an editor anymore,
> > even if I write the data out to ASCII-files again.
> >
> > Now I think that maybe the switch is not enough
> > and the model gets the full global as direkt power...
> >
> > Am I missing something?
> >
> > Best regards,
> > Holger
> >
> >
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>